ToT is a wizard at solidworks! I have been using the program for 10 years and I don't think it could have done as slick of a job as him at that sprocket design. I am now starting to suspect he is some sort of design engineer by day!
Me being a CNC specialist, I'm quite surprised that you knew that it's the N that stands for computer. It's a secret we much prefer to keep hidden from the uninitiated.
Comment about sprocket design: when the teeth are few, you should always use an odd number of teeth. Reason, there is a "tension wobble" because essentially the sprocket is a "polygon" of N sides, and not a circle. By using odd tooth number, the tension ripple of the meshing-in point and the meshing-out point cancel. Another thing: the pitch of a sprocket should be A LITTLE LESS than that of the chain. (The more teeth on the sprocket, the more reduction you need.) The chain will move outward to find the exact point of pitch match. If you make it exact, a micro piece of dirt will hold the chain upward from its seated position, causing the next link of the chain to fall further behind the sprocket, which makes the next link even further. If you have ever had a bike where the chain makes jumping noises, and no matter how much you tighten it, it gets hard to turn, then bang! and suddenly easier, repeat... That's the cause.
As stupid as it sounds (and it is), I've been in the same place with beta dealers before. The solution has been taking my sprocket to a parts dealer, measure it and search the catalogues for compatible stuff. The dealer insisted that I could only fit OEM parts, as if beta made their own parts...
I have been in the buisness, for all bigger bikes and brand bikes, they use standard chains, when you come to the smaller stuff, and chinese crap, all bets are off. The small pitbike/dirtbikes are especially f-up, no standard at all.
@@someoneelse7629 Yeah I've been through that with some old chinesium "pocketbikes" when my kids were little. It's like when they built the bikes they were digging through the miscellanious parts bin and tacking on whatever would fit
@Petey Barnum Each link comes with a pair of rollers. Take a close look when he pulls that one link out. It has a pair of rollers. You have to carefully watch TOT. He's a bit more subtle in places than we typically expect from more in-your-face comedians who seem to think they have to spell it all out for people. (and probably do).
17:42 I hate when that happens. Fixed a gear in my lathe with a copper washer and some JB Weld, after getting tired of waiting. Then the part arrives in the mail. Never bothered to change it, the JB Weld is still holding to this day.
Tin can piece, and loctite 603, because the manufacturer decided to increase shaft size a few hundred units up from the one I got, so the new gears ( slightly better quality than TOT has) were just a tiny bit sloppy on the shaft. I also had to, on another gearbox, take a regular Fenner gear, and turn most of it away, as this used a gear as part of a clutch assembly to limit torque, so just needed the actual gear teeth and a flat plate, with the centre having a brass ring to take up the 2mm diameter difference. My garage door as well, needed 2 gear teeth, but the chain is a skinny one, not easy to get, but easy to take standard sprockets and machine them down to the skinny ones, then take some regular chain and put it in where it would just not travel over them, as a spacer.
PRO TIP: Well when I JB welded mine I had to do the same thing tony did and cut a link out of the chain because when the one tooth broke off I skoooooted all the other teeth around a bit to make it concentric, hence the removing of the half a link of chain. You’ll get that on these big jobs........
In the mid '80's, I was working at an independant sports car shop in the off season, (I worked in Pro football as an asst athletic trainer, and didn't make enough to support a family). This guy came in with a 911S with a horrid oil leak. They have chain driven overhead cams on both heads of the flat 6 engine. The chain tensioners had been shot for so long, the slack chain had worn through the case cover. The case covers were not available from any wrecking yards, and after the cost of the tensioner repair, the owner choked on nearly twice as much for two new case covers. I offered him an inexpensive solution with no guarantee of it working. I then JB Welded the cases. No leaks. Thr key is cleanliness. I ran into the owner 3-4 years later, he still had the Porsche, and it had never leaked. If I guaranteed it for 2 days, it would have started leaking after 47 hours. Sometimes, it's all about knowing how to play the universe off against itself. LOL
@@gamemeister27 I once took working at heights/harness training from a former highrise window washer, who said the day that you aren't a little bit afraid to go over the edge is the day you should quit. Same principle applies
Kristoffer Beder hell no. Just chuck it up like normal, every time the missing bit comes around it doesn’t cut- instant D hole. Course you do have to match the rpm to the diameter but there’s gotta be a page for that in the ginger beers handbook. You’re welcome.
When I was a kid (mid 80s), we'd manufacture rear sprockets for racing karts completely by hand. A calculator, compass, punch, drill press, jig saw, and bench grinder were the only tools.
@@U014B Well, they went on my own racing karts. They were sprocket sizes that I could not buy off the shelf. Solution, buy an oversize sprocket as a blank and then make my own.
When contour machining form with concavities, avoid the high milling stress in the roots by using the cutter to drill holes in the concavities first, then run the contour. On drilling, forces are central and aligned with axis, so no tool deflections affect concavity position. It is easy in the CAD to add these holes. If your cutter has a plunge grind, you can use the same tool. In this case, you can select the tool that matches the concavity, rather then having to use a smaller one. This also mitigates the clogging of the tool flutes when cutting concavities.
Hey kids on lithium is just the norm now. Kids build up a tolerance to meth early in life with the Adderall so you gotta snowball them with some lithium at around age 7
And here I was expecting TOT to grab the "spirograph" kids toy from the 70s to make a sprocket. Thanks for the shows Tony, and the time on the cutting room floor.
You've discovered the method I use to find misplaced tools! I just buy a new one, and my old one shows up almost immediately. Of course, there is the added advantage of having duplicates like 3 desoldering tools.
@@nelsonbrum8496 Or tape measures for some reason.. the extra one I bought in the hope the other one would turn up again has now just taken the missing ones place ;-)
Very similar phenomena exists when building plastic models - Lose a small part, you look for it - everywhere - on hands and knees. No luck. So you scratch build a replacement. An hour and a half later the new part is done and you decide to stand up from the model bench and take a break. Oh ! Something under the tongue my shoe ! - and only then you find it is the original lost part.
Going down to 10 teeth was a bad idea, the manufacturer knows why the sprockets are failing by now and the solution is more teeth, not less. The torque issue would be solved by higher voltage battery/controller. The motor itself is probably pretty stout. The bike was just poorly engineered from the start. Lead acid? You kidding me?🤦
The sprockets we machine at work we do the same way on a cnc mill, we add a scallop in the valley of the tooth with a ball nose to allow dirt to escape. We also have problems with too much cutter engagement in the corners, which can be kinda fixed by a circular helical tool path or slowing the feed rate down. As always a great video TOT
Seriously Tony, all jokes aside, I was quite amazed with your CAD-Tutorial. Not like I didnt expect you to be so coherent, but rather just amazed how concise and easy to understand your train of thought was. Overall a very enjoyable episode!
No joke. Maybe some chain phaser/tensioner actuated by an ootical sensor either advancing or retarding the required position of said phaser/ tensioner, that in turn, takes the stresses of that poor D.C. motor. Ya know. Something simple like that.
Only reason that wouldn't work is because sprocket gears are made to be co-prime so that the chain will progress through the entire chain spreading the wear or allowing one fault in the chain to spread to the entire drivetrain.
I'm not a mathologist, but... Actually, I know the feeling trying to figure out whether T66 aluminium could take 300lbs of weight spread across 4 bolts with 12mm bushings. The limit was in MPa, the answer was somewhere in KPa so I figured that left me an order of magnitude to play with and called it good.
take the tensile strength of silver and divide it by the product of the shaft diameter and motor peak power. Subtract two and that's how many filler rods you need. Then use the sq root of that amount since rods are expensive as fuck these days.
workshop: A place with tools to make more tools so that when feel like it you can spend lots of time making something you can buy cheaper and faster ;)
Yeah, except most things you can order are made out of crusty sunbaked dogcrap, and having a proper workshop can lend you parts made out of tool steel, titanium and so on... Of course, it is all expensive as fuck, but then again, so is alcohol and heavy sedatives you need to take in copious amounts when your shit fails and you have to wait for it for ages to come from the store only to be as crappy as the thing that broke in the first place, so i rather go with some mild sedatives and an expensive workshop than no workshop and a heroin addiction...
Hey... Had a great idea for a future build for you. I've searched high and low for a serious fishing reel build, and all I come up with are these wooden toy like things. I just moved from Wisconsin to South Carolina and almost all my fishing gear is useless for ocean fishing. Prices for this stuff are astronomical! When I finally get my machines set back up I'm going to copy a friend's $1200 ocean fishing reel, but I thought of you also. It's certainly not anything others are doing in TH-cam land and I think it would prove to be a very challenging and popular build. Lots of different materials and operations. A virtual smorgasbord of metal fabrication entertainment. Thanks for all videos...👍
I've built several 26650 based 24v batteries for power chairs that last all day use a 7p8s 26650 pack is about 12"x14"x7" ishh? One will run a power chair around the shop , yard etc, all day, two of them will run something about 25 miles ymmv depends on the chair. Getting rid of the lead in the chair and replaced with a 26650 pack, saved about 300 dollars every three months, the pack lasted 2 years before needing a maintenance overhaul, the 260 dollar or so investment saved about 2400 bucks. Fella was having to buy new batteries every 3mo or so
Has everybody here been following Tony for a few years?... This guy found something he loves and he's telling us all about it... the "Telling Skills" keep getting better every video. AMAZING TALENT.
You sir are a Grey beard master in the making! My hat is off to you! I hope you accept my sincere bow to your awesomeness! The world could use a whole lot more like you!
@@MuitoDaora I was just confused because I knew he had a 2 stroke and now seeing the electric, I know they kick butts especially in this discipline because you have more Torque straight out of it
But it is the exact same build quality as the first sprocket which caused all the problem to begin with. All he has now is a "maybe" backup from the sweatshop.
Amazing. I hope you continue doing these videos in this same format for years to come. I've never machined a thing in my life, but because of you I know so many things not to do.
@This Old Tony, You should make CAD tutorial videos! I've been learning Autodesk Inventor all week and the guy is doing a great job. But I would much rather listen to you and your humor.
I've done university level CAD (granted, for industrial design, not mechanical engineering), and that explanation of how to create custom sprocket teeth/gear teeth was better than some of the sruff I've heard from my professors.
Very nice seeing you design in SolidWorks so well. As an engineer I always enjoy your garage show. But seeing this from time to time makes me happy that what I am doing isn’t unnecessary!
The Workshop Mechanic Channel, Reminds me of a description I once read about the quality control philosophy of 20th century Italian car manufacturers: “Close-enough is waaaay too close.”
I think they assemble the bikes at the dealership. So they just send off a package of parts with an almost finished bike and never check if the parts actually fit.
Well done Doctor Tony. Such a crock I have never seen before. But, of course the new sprocket showed up just in time. Karma works that way. No good deed goes unpunished. Excellent composure in going to the wall to make your own. Hope your boy appreciates the effort you went through. Thanks for sharing.
I have two small CNC routers and a micro CNC mill. The next time I build one, I will get servo motors after watching this. No more lost steps. Thanks for the great video, it was very educational.
they work for stuff that is equally spaced from center, meaning the cut needs to be similar all the way round, which isn't the case with a D shape, even if you were to position your spindle on the center of a circle that would with inside the D, and not on the centerline of the sprocket, there would be a lot of meat to cut at the top/bot corners of the D, which has a good chance of screwing things up for you much easier to do with a D broach starting in an offset circle (same one that would fit in the D), that is how it was probably done in the factory, and they probably made it as the last feature, not the first, hence why it is all wobbly like that if they made the D hole first, then fit it on proper D shaft mandrel and machine the rest, everything would be reasonably concentric p.s. I think it is way past time for ToT to get a wire edm... "die filer 2.0" :D
You're late Tony! I already have drawn my first ever sprocket five hours ago. :P I found it to be less messy to draw a concentric circle from one roller tangent to the next roller (twice), then I trim the excess of the circles and am left with a tooth. It is much less confusing than what happens around 9:10 in this video. Either way, there's two types of people: people who like to fillet the ends of their teeth and people who just primitively cut off the tips of their teeth. Both work fine but I like my fillets.
The fillet button has cost countless millions of dollars for aesthetics. When in doubt put a "break edges .005-.010 inches"callout. So much more efficient.
"and when they loose their spunk they still have another hour of just riding around time" haha, oh my goodness. That's a pretty long time to ride around after loosing your spunk :D
Hi Tony, Only just been able to get back to this vid, looking after a 'hyperactive' 4yr old grandson isn't as easy as people think ;o) (he may not be hyperactive, I'm just old, slow and worn out) Your talking about something I really know a bit about. Just in case you didn't know (and I'm sure many of your subscribers wont know?) I haven't done any research (even I'm not that much of a nerd) Chain standards were probably set up in 19th century when Britain had an Empire and America didn't have much standardisation ( Congress passed some acts in 1864 that took another 20 years to be implemented, Troy ounce for precious metals was the only recognised standard measurement nationwide until then) Chains are 'mostly' measured in 1/8" 'blocks' a 630 is 6/8 (three quarter inch pitch) by3/8 ( three eighth's internal width between side plates). 520 is 5/8 x2/8 . 420= 4/8x2/8, etc. There are a few special sizes that don't seem to conform, the one you have looks like a
Being a Mechanical Engineer my personal 3 best moments of the video 1.)The CAD model of sprocket😎 2.) The brazing of d shaft part into the Bore😉 3) And of course the delivery of new Sprocket😛 Dude want to have a discussion with you, u r genius😊 Also it is lot easier to cut D slot by abrasive wire cutting..try it once in upcoming video..i have tried myself🙂
Nice job and problem solving as always. And isn't it great to know you have that much power over the universe, that you can _cause_ a sprocket from who-knows-where, to be delivered _precisely_ when you finish building one from scratch.
I think that you need to fail more often, I don't think your boy can truly understand what it is you do to make his toys go zoom! Seriously, amazing work, as usual, hats off to the UPS guy for giving you a great ending! Cheers from Tokyo!
Sort of. It's a generic term that covers both of the more specific terms _cockeyed_ and _lopsided_ and is useful when you're discussing something with elements of both.
“Breaks my heart to see things like that” - LOL. You love having things to fix, and we love that you do it so well, and with so much (dad) humour. To paraphrase one of the great Australian movies, “That’ll do ToT. That’ll do.”
Thank you for your video. I think this will help me profile my part for GT2 belt. I spent the better part of a day trying to find something to make it simple. This video along with the profile of the belt helped significantly, I hope. I haven't ordered the part or belt yet, but I'm confident in my design to work.
![[TH] VCT Masters Shanghai Playoffs DAY 4 // 100T vs GEN | G2 vs TH](http://i.ytimg.com/vi/UkTGSxdCUQw/mqdefault.jpg)
That CAD segment on making the sprocket was super cool! Very intuitive how you laid out the pattern.
Yea it's sometimes easy to forget just how smart he is. I'd love to have a beer or two with him.
Yes!! Albeit made me feel a tab bit insecure about myself 🤣
ToT is a wizard at solidworks! I have been using the program for 10 years and I don't think it could have done as slick of a job as him at that sprocket design. I am now starting to suspect he is some sort of design engineer by day!
I definitely had a light bulb moment when he revealed the profile after rotating those two links.
GiorgiC I’d just love to have a beer.
Me being a CNC specialist, I'm quite surprised that you knew that it's the N that stands for computer. It's a secret we much prefer to keep hidden from the uninitiated.
N is for "number-cruncher" :)
Waaaait just a minute. "M"ichael "H"ammer, "C"nc specialist... MC-Hammer... I see you, you sneaky son of a... CAN'T TOUCH THIS!
"N" stands for "numerical". The first "C" stands for "computer", & the last one stands for "control".
@@bpark10001woosh
@@bpark10001 wrong. amateur hour
please tell me your boy will some day start his own channel called "This Young Tony"
"Destructor"
I'm pretty sure he's contractually obligated.
Way better than Anthony Jr, Meadow's kid brother
@@mwilliamshs Ant-Man ?
@@georgeb.wolffsohn30 Tony Soprano
Comment about sprocket design: when the teeth are few, you should always use an odd number of teeth. Reason, there is a "tension wobble" because essentially the sprocket is a "polygon" of N sides, and not a circle. By using odd tooth number, the tension ripple of the meshing-in point and the meshing-out point cancel. Another thing: the pitch of a sprocket should be A LITTLE LESS than that of the chain. (The more teeth on the sprocket, the more reduction you need.) The chain will move outward to find the exact point of pitch match. If you make it exact, a micro piece of dirt will hold the chain upward from its seated position, causing the next link of the chain to fall further behind the sprocket, which makes the next link even further. If you have ever had a bike where the chain makes jumping noises, and no matter how much you tighten it, it gets hard to turn, then bang! and suddenly easier, repeat... That's the cause.
For a long time I had wondered why odd numbered sprockets were more common
That is interesting...never thought of either!
What chain size is on this bike? "Uuuuuh, the one we sell."
As stupid as it sounds (and it is), I've been in the same place with beta dealers before. The solution has been taking my sprocket to a parts dealer, measure it and search the catalogues for compatible stuff.
The dealer insisted that I could only fit OEM parts, as if beta made their own parts...
I have been in the buisness, for all bigger bikes and brand bikes, they use standard chains, when you come to the smaller stuff, and chinese crap, all bets are off.
The small pitbike/dirtbikes are especially f-up, no standard at all.
@@someoneelse7629 Yeah I've been through that with some old chinesium "pocketbikes" when my kids were little. It's like when they built the bikes they were digging through the miscellanious parts bin and tacking on whatever would fit
@@mastertek383 eh if its from china its probably a 415, but who know been my experience at least
"I did have to cut one roller out of the chain"
😀 I'm still giggling at that 👍
Just one? That IS odd. Still and all, I trust Tony. He did the math and got the correct answer of "Subscribe" so I'm sure his kid will be fine.
Have you ever seen a half-link? Seriously ,they exist. A clever gadget too!
I’m just sad that I initially took that as a smart move.....about 4 minutes later it hit me.
@Petey Barnum Each link comes with a pair of rollers. Take a close look when he pulls that one link out. It has a pair of rollers. You have to carefully watch TOT. He's a bit more subtle in places than we typically expect from more in-your-face comedians who seem to think they have to spell it all out for people. (and probably do).
All these years of cutting chains with even links - I never thought to cut just one out! Thanks TOT
17:42 I hate when that happens. Fixed a gear in my lathe with a copper washer and some JB Weld, after getting tired of waiting. Then the part arrives in the mail. Never bothered to change it, the JB Weld is still holding to this day.
Tin can piece, and loctite 603, because the manufacturer decided to increase shaft size a few hundred units up from the one I got, so the new gears ( slightly better quality than TOT has) were just a tiny bit sloppy on the shaft.
I also had to, on another gearbox, take a regular Fenner gear, and turn most of it away, as this used a gear as part of a clutch assembly to limit torque, so just needed the actual gear teeth and a flat plate, with the centre having a brass ring to take up the 2mm diameter difference.
My garage door as well, needed 2 gear teeth, but the chain is a skinny one, not easy to get, but easy to take standard sprockets and machine them down to the skinny ones, then take some regular chain and put it in where it would just not travel over them, as a spacer.
Well like they say, nothing is more permanent than a temporary solution.
PRO TIP:
Well when I JB welded mine I had to do the same thing tony did and cut a link out of the chain because when the one tooth broke off I skoooooted all the other teeth around a bit to make it concentric, hence the removing of the half a link of chain.
You’ll get that on these big jobs........
I glued an exhaust manifold Bolt into an aluminium head with JB weld on a Pressure sprayer...it never failed.
In the mid '80's, I was working at an independant sports car shop in the off season, (I worked in Pro football as an asst athletic trainer, and didn't make enough to support a family).
This guy came in with a 911S with a horrid oil leak. They have chain driven overhead cams on both heads of the flat 6 engine.
The chain tensioners had been shot for so long, the slack chain had worn through the case cover. The case covers were not available from any wrecking yards, and after the cost of the tensioner repair, the owner choked on nearly twice as much for two new case covers.
I offered him an inexpensive solution with no guarantee of it working. I then JB Welded the cases. No leaks. Thr key is cleanliness.
I ran into the owner 3-4 years later, he still had the Porsche, and it had never leaked.
If I guaranteed it for 2 days, it would have started leaking after 47 hours. Sometimes, it's all about knowing how to play the universe off against itself. LOL
"I've never quite trusted electricity." -Welder
The batteries are the issue.
If anyone has a reason to be mistrusting of it, it's welders
gosh im gigglin'
@@gamemeister27 I once took working at heights/harness training from a former highrise window washer, who said the day that you aren't a little bit afraid to go over the edge is the day you should quit. Same principle applies
Edison didn't invent electricity, it's a force of nature.
"We'll burn that bridge when we cross it" 😂
didn't even notice that
I’m going to use that one.
It looks like he measured twice and cut three times.
Actually, that's better than burning the bridge when you get to it.
Boy, THAT was embarrassing.
That's a solid Ricky-ism
For the D hub why didn’t you just grind half a land off a twist drill so it only cut 2/3rds of the hole. easy. Your welcome.
That makes perfect sense! Lol.
I can tell, you are one of those math guys...LMAO
Mike Curtin As long as you use it as a broach!
Kristoffer Beder hell no. Just chuck it up like normal, every time the missing bit comes around it doesn’t cut- instant D hole. Course you do have to match the rpm to the diameter but there’s gotta be a page for that in the ginger beers handbook.
You’re welcome.
@@mwhelan53 Ah, so that's how they make those double D holes you see on instrument panels, they just cut both lands off!
When I was a kid (mid 80s), we'd manufacture rear sprockets for racing karts completely by hand. A calculator, compass, punch, drill press, jig saw, and bench grinder were the only tools.
Why were kids manufacturing sprockets? I know child labor laws are relatively recent, but...
@@U014B Well, they went on my own racing karts. They were sprocket sizes that I could not buy off the shelf. Solution, buy an oversize sprocket as a blank and then make my own.
I’m climbing impaired. Can you make me a 90 tooth for my mountain bike cassette?
Ooh shit wadup
@@Rekonmoottorihiomo turpakii se on wassupp
9 tooth to 90 tooth 15 speed cassette... Let's goooo SRAM
10 in the front, 90 in the back for climbing 90° inclines 🤣
@@musicremixed6520 no voi eiii voi kyynel... kai tajut et toi on sellasta ihme slanggi paskaa
They must be calculating the lead acid battery time in 'dog hours.'
@no candy Manufacturer knows, but marketing knows how to sell it.
That's what she said!
@@DmitriyLaktyushkin *how to lie
What do you mean I can't pull 100 amps from a 100 amp/hour battery pack for 1 hour?!? @_@
I think they use the term used to measure radioactive decay, half-life. They have the half-life of a worn out battery.
Me: ok I'm going to sleep now
TOT: No you are not
Me: No I'm not
something generic what time is it there?? Lol
It's 0:14 AM in Italy
@@adrianjayneful anywhere east of Portugal and Ireland it's after 11pm :)
when TOT post you dont sleap....period!
0:38 in Germany
That strength calculation had me going for a second.
I was expecting 5318008.
@@bschonec same haha
i still wanna know the answer tho.....
Ill need the following data:
Chemical formula of the silversolder. In Dutch we call it: "legering"
Average rpm of the chaft.
When contour machining form with concavities, avoid the high milling stress in the roots by using the cutter to drill holes in the concavities first, then run the contour. On drilling, forces are central and aligned with axis, so no tool deflections affect concavity position. It is easy in the CAD to add these holes. If your cutter has a plunge grind, you can use the same tool. In this case, you can select the tool that matches the concavity, rather then having to use a smaller one. This also mitigates the clogging of the tool flutes when cutting concavities.
Hello child services I need to report a parent who has his kid on lithium and he’s threatening us with math.
Yeah the kid has seen lots of ups and downs ever since using lithium instead of acid, might want to look into that.
Yeah and he,s lost a tooth
He said "we started doing lithium".
That's an additional charge of -accessory to child endangerment- really cool dad
1k like
Hey kids on lithium is just the norm now. Kids build up a tolerance to meth early in life with the Adderall so you gotta snowball them with some lithium at around age 7
"Today I thought we could take this opportunity to turn a little problem into a much bigger problem."
What the narrator would say if each day in my life was a movie, for $300, Alex.
He turned an 11 tooth problem into a 10 tooth solution. I think that's a win.
What happens any time I try to fix something on my car
Funfact: We in germay have a special word for that 😂
It's "Verschlimmbessern"
In the end: it was all not needed. Oh god...
And here I was expecting TOT to grab the "spirograph" kids toy from the 70s to make a sprocket. Thanks for the shows Tony, and the time on the cutting room floor.
Wife: what are you doing
Me: Tot has a new video
Her: great what are going to want to build now
Teeth
You've discovered the method I use to find misplaced tools! I just buy a new one, and my old one shows up almost immediately. Of course, there is the added advantage of having duplicates like 3 desoldering tools.
exactly, now you have one for the bag, one for the toolbox, and one for the bedroom
The only caveat: this DOES NOT work for any length of 10mm socket. When it's gone, it's gone forever.
@@nelsonbrum8496
Or tape measures for some reason.. the extra one I bought in the hope the other one would turn up again has now just taken the missing ones place ;-)
Verniers...
I now have four of them and can only find one, never the same one either...
Verniers work in shifts
Very similar phenomena exists when building plastic models -
Lose a small part, you look for it - everywhere - on hands and knees.
No luck.
So you scratch build a replacement.
An hour and a half later the new part is done and you decide to stand up from the model bench and take a break.
Oh ! Something under the tongue my shoe !
- and only then you find it is the original lost part.
You should be getting a call from the manufacturer anytime for an order of sprockets😁
Bwhaha. It's funny because it's so true. Then they'll ask him for the type of chain to use.
@@shirothehero0609 did yall watch it to the end?! lol Tony is awesome!!
Going down to 10 teeth was a bad idea, the manufacturer knows why the sprockets are failing by now and the solution is more teeth, not less. The torque issue would be solved by higher voltage battery/controller. The motor itself is probably pretty stout. The bike was just poorly engineered from the start. Lead acid? You kidding me?🤦
@@Hammerjockeyrepair that I did.
cnc clearly stand for "command´n conquer"
You have absolute gems in the writing! "Ever since Edison invented [electricity] I haven't trusted it."
The sprockets we machine at work we do the same way on a cnc mill, we add a scallop in the valley of the tooth with a ball nose to allow dirt to escape. We also have problems with too much cutter engagement in the corners, which can be kinda fixed by a circular helical tool path or slowing the feed rate down. As always a great video TOT
The simple fact that you fully defined your sketch in solidworks earns you a thumbs up.
Hahaha ikr
The world needs geniuses like you.
Thanks Mrs Old Tony for sharing your husband. X ;-)
Seriously Tony, all jokes aside, I was quite amazed with your CAD-Tutorial. Not like I didnt expect you to be so coherent, but rather just amazed how concise and easy to understand your train of thought was. Overall a very enjoyable episode!
I was expecting you to CNC a chain with offsets timed so that it cancels out the sprocket wobble.
No joke. Maybe some chain phaser/tensioner actuated by an ootical sensor either advancing or retarding the required position of said phaser/ tensioner, that in turn, takes the stresses of that poor D.C. motor. Ya know. Something simple like that.
Need the Rockwell Entabulator to design that.
Only reason that wouldn't work is because sprocket gears are made to be co-prime so that the chain will progress through the entire chain spreading the wear or allowing one fault in the chain to spread to the entire drivetrain.
English please
was this a real conversation?
"And everyone knows, square roots have no dimension."
Hey, he only showed the real component and not the imaginary of complex numbers.
I'm not a mathologist, but...
Actually, I know the feeling trying to figure out whether T66 aluminium could take 300lbs of weight spread across 4 bolts with 12mm bushings. The limit was in MPa, the answer was somewhere in KPa so I figured that left me an order of magnitude to play with and called it good.
17:27 at least you got a 10 tooth sprocket now. 9% more oomph.
But 9% less zoom!
4:02 "On the clock, I might add!"
This is just what I needed, at the time I needed it most
YT is really giving me the sh1ts tonight this is a godsend.
Yes, 100km in wet waders, i got rum and kept refreshing subs until this popped up four minutes ago
Just in time before I go to bed. Have a beer and listen to legend speak.
You can't use this video to get an interview with Spacely's but I heard Cogswell may be interested
"I'm not CNC expert" - Starts doing magic
"What size chain?" "We sell chains." "Yes, yes you do."
That demonstration on shaping out a toothed gear was so good.
I really learned something there.
I remeber designing gears and sprockets in school, by hand, with a compass.
Somehow i still have all my hair
Nicolas Cionfrini 😂
@ Nicolas that problem with hair you have may go away after few years.
@sjoormen1 -- My hair started wandering off in my 40s. Some guys never have that problem. I hate them.
Luxury!
Respect. Beautiful and right way to draw sprocket. Can't keep my tears.
The content on this channel is phenomenal. The work and the joy you bring is amazing. Cheers
I love the engineering calcs on the braze joint! I usually forget to take the square root. Keep it up TOT!
TimWelds 58008?
take the tensile strength of silver and divide it by the product of the shaft diameter and motor peak power. Subtract two and that's how many filler rods you need.
Then use the sq root of that amount since rods are expensive as fuck these days.
but in all seriousness that joint will last longer than the bike.
Shaft diameter: 12 mm
Hub (braze) depth: ~13 mm
Braze length: 1/4 circumference ~10 mm
Braze shear strength: 18000 psi ~ 124 MPa
Motor 750W/36V rated torque: > 3 N*m
√ PASSED
@@jonasthemovie
An or
8008135
workshop: A place with tools to make more tools so that when feel like it you can spend lots of time making something you can buy cheaper and faster ;)
This is often (I'll even give you "usually") the case. Given the quality of the factory parts in this case, it's good that Tot has a workshop.
@@mikecurtin9831 yup, and I bet Tony's sprocket is better than the mail order sprocket.
Well, obviously(?) not "faster" in _this_ case... Otherwise a totally agree!
Yeah, except most things you can order are made out of crusty sunbaked dogcrap, and having a proper workshop can lend you parts made out of tool steel, titanium and so on... Of course, it is all expensive as fuck, but then again, so is alcohol and heavy sedatives you need to take in copious amounts when your shit fails and you have to wait for it for ages to come from the store only to be as crappy as the thing that broke in the first place, so i rather go with some mild sedatives and an expensive workshop than no workshop and a heroin addiction...
I concur. However, that doesn't make for fun video content...
Hey...
Had a great idea for a future build for you. I've searched high and low for a serious fishing reel build, and all I come up with are these wooden toy like things.
I just moved from Wisconsin to South Carolina and almost all my fishing gear is useless for ocean fishing. Prices for this stuff are astronomical! When I finally get my machines set back up I'm going to copy a friend's $1200 ocean fishing reel, but I thought of you also. It's certainly not anything others are doing in TH-cam land and I think it would prove to be a very challenging and popular build. Lots of different materials and operations. A virtual smorgasbord of metal fabrication entertainment. Thanks for all videos...👍
I've built several 26650 based 24v batteries for power chairs that last all day use a 7p8s 26650 pack is about 12"x14"x7" ishh? One will run a power chair around the shop , yard etc, all day, two of them will run something about 25 miles ymmv depends on the chair. Getting rid of the lead in the chair and replaced with a 26650 pack, saved about 300 dollars every three months, the pack lasted 2 years before needing a maintenance overhaul, the 260 dollar or so investment saved about 2400 bucks. Fella was having to buy new batteries every 3mo or so
Has everybody here been following Tony for a few years?... This guy found something he loves and he's telling us all about it... the "Telling Skills" keep getting better every video. AMAZING TALENT.
Circle sprockets!! Good idea, been using square one for tears :)
Great video! really enjoyed seeing all the steps From CAD to finished part. You rock TOT!
I've been wondering how to design a sprocket in cad and this showed me how. I still learn so much from this channel
12:53 “a dishonour to the Old Tony family name” That could only mean one thing...
*_This is your name_*
Love the addition of CAD work. Please do more (or maybe sibling videos with the CAD for other videos). Thanks for being awesome
You sir are a Grey beard master in the making! My hat is off to you! I hope you accept my sincere bow to your awesomeness! The world could use a whole lot more like you!
Thank you Tony. You are a very smart and talented engineer and fabricator Sir!!
Me: Wonders why it's a electric all of a sudden.
Tony: Literally explains it while I'm thinking
Electric dirt bikes kick butts of conventional ones no problem.
@@MuitoDaora I was just confused because I knew he had a 2 stroke and now seeing the electric, I know they kick butts especially in this discipline because you have more Torque straight out of it
I said it out loud . when I heard the knocking at the door. the Sprocket has arrived!
Saw it coming when he said the lead time was undefined.
Clearly not loud enough.
But it is the exact same build quality as the first sprocket which caused all the problem to begin with. All he has now is a "maybe" backup from the sweatshop.
Fabulous production. Super gear Fab with the CNC. You made the math simple to follow. I feel a bit more powerful. Thanks a bunch.
Amazing. I hope you continue doing these videos in this same format for years to come. I've never machined a thing in my life, but because of you I know so many things not to do.
“Thanks for watching!”
The pleasure was all mine. Excellent.
@This Old Tony, You should make CAD tutorial videos!
I've been learning Autodesk Inventor all week and the guy is doing a great job. But I would much rather listen to you and your humor.
I've done university level CAD (granted, for industrial design, not mechanical engineering), and that explanation of how to create custom sprocket teeth/gear teeth was better than some of the sruff I've heard from my professors.
Very nice seeing you design in SolidWorks so well. As an engineer I always enjoy your garage show. But seeing this from time to time makes me happy that what I am doing isn’t unnecessary!
Here I was expecting a "Lend me your Gears...."
Lol, he probably thought about it!
Best demo I've seen for explaining the involute tooth form i've seen. good work!
Best sprocket cad tutorial ever. Thank you so much TOT.
It really is amazing watching you solve a problem. Thank you very much for making these videos. I have learned a lot from watching them.
I’m guessing that the quality control guy at the factory must’ve said
“She’ll be right mate”
The Workshop Mechanic Channel,
Reminds me of a description I once read about the quality control philosophy of 20th century Italian car manufacturers: “Close-enough is waaaay too close.”
I’m guessing he called in sick that day...
@@mxcollin95 Yeah, but it was the end of the day!
I think the phrase you are looking for is "I don't care"... I mean "within speck".
I think they assemble the bikes at the dealership. So they just send off a package of parts with an almost finished bike and never check if the parts actually fit.
This really makes my day. Thank you for being you!
Love your CAD trick on the sprocket tooth profile. I’ll have to try that.
Well done Doctor Tony. Such a crock I have never seen before.
But, of course the new sprocket showed up just in time. Karma works that way.
No good deed goes unpunished. Excellent composure in going to the wall to make your own.
Hope your boy appreciates the effort you went through.
Thanks for sharing.
TOT: I contacted George Jetson at Spacely Sprockets to get your spocket order overnighted! Enjoy!
You're dating yourself :)
I sent him a cog from Cogswell's Cogs!
You've still got a wobble, either from a bent shaft or the bearings are toast.
Great vid, much appreciated from Hunkerdown Town, Alaska!
I have two small CNC routers and a micro CNC mill. The next time I build one, I will get servo motors after watching this. No more lost steps. Thanks for the great video, it was very educational.
Definitely the best subscription I've made all year, totally love your Humor and how you resolve things will pass on channel to my buddies.
6:00 So... What happened to the rotary broach you made? Couple minutes with a mill and some round tool steel and AvE's your uncle.
they work for stuff that is equally spaced from center, meaning the cut needs to be similar all the way round, which isn't the case with a D shape, even if you were to position your spindle on the center of a circle that would with inside the D, and not on the centerline of the sprocket, there would be a lot of meat to cut at the top/bot corners of the D, which has a good chance of screwing things up for you
much easier to do with a D broach starting in an offset circle (same one that would fit in the D), that is how it was probably done in the factory, and they probably made it as the last feature, not the first, hence why it is all wobbly like that
if they made the D hole first, then fit it on proper D shaft mandrel and machine the rest, everything would be reasonably concentric
p.s. I think it is way past time for ToT to get a wire edm... "die filer 2.0" :D
@phuc
exactly, i dont know who this dude jones is but he is AvE illiterate, whereas your AvEctionary is gut'n'toit'!
@phục êwê Nah, AvE's your Uncle Bumblefork. Bob's your auntie.
@phục êwê Something something 150 pound filipino buddy
You're late Tony! I already have drawn my first ever sprocket five hours ago. :P
I found it to be less messy to draw a concentric circle from one roller tangent to the next roller (twice), then I trim the excess of the circles and am left with a tooth. It is much less confusing than what happens around 9:10 in this video.
Either way, there's two types of people: people who like to fillet the ends of their teeth and people who just primitively cut off the tips of their teeth. Both work fine but I like my fillets.
The fillet button has cost countless millions of dollars for aesthetics. When in doubt put a "break edges .005-.010 inches"callout. So much more efficient.
So that's the new fashion in teeth these days!!!
Watch the video again. He shows your method also and explains why he showed the other first.
I personally prefer a strip steak in my teeth, but a fillet will do nicely as well.
@@WeighedWilson I just looked it up and indeed, breaking edges is better. Thanks for the tip!
"and when they loose their spunk they still have another hour of just riding around time" haha, oh my goodness. That's a pretty long time to ride around after loosing your spunk :D
That was bad ass!! Making that sprocket on the CADD.. Sage wisdom.
When I clicked on this, youtube showed the video was 56 seconds old with 107 likes, 8 views, and 20 comments. I think people like This Old Tony :D
While people do indeed like old Tony, youtube is notoriously inaccurate at tracking stats especially in the early hours of an upload.
Hi Tony,
Only just been able to get back to this vid, looking after a 'hyperactive' 4yr old grandson isn't as easy as people think ;o)
(he may not be hyperactive, I'm just old, slow and worn out)
Your talking about something I really know a bit about. Just in case you didn't know (and I'm sure many of your subscribers wont know?)
I haven't done any research (even I'm not that much of a nerd)
Chain standards were probably set up in 19th century when Britain had an Empire and America didn't have much standardisation ( Congress passed some acts in 1864 that took another 20 years to be implemented, Troy ounce for precious metals was the only recognised standard measurement nationwide until then)
Chains are 'mostly' measured in 1/8" 'blocks' a 630 is 6/8 (three quarter inch pitch) by3/8 ( three eighth's internal width between side plates). 520 is 5/8 x2/8 . 420= 4/8x2/8, etc. There are a few special sizes that don't seem to conform, the one you have looks like a
Being a Mechanical Engineer my personal 3 best moments of the video
1.)The CAD model of sprocket😎
2.) The brazing of d shaft part into the Bore😉
3) And of course the delivery of new Sprocket😛
Dude want to have a discussion with you, u r genius😊
Also it is lot easier to cut D slot by abrasive wire cutting..try it once in upcoming video..i have tried myself🙂
lots of love there. Great build and commentary
"One roller"... I always ask my pizza to be cuted in 7 and half parts!
Nice job and problem solving as always. And isn't it great to know you have that much power over the universe, that you can _cause_ a sprocket from who-knows-where, to be delivered _precisely_ when you finish building one from scratch.
I think that you need to fail more often, I don't think your boy can truly understand what it is you do to make his toys go zoom!
Seriously, amazing work, as usual, hats off to the UPS guy for giving you a great ending!
Cheers from Tokyo!
0:52 is "wonky" a technical term?
Obviously, since I use the term.
It’s the most technical of all ways to say, “It’s fucked!” 🤣
Sort of. It's a generic term that covers both of the more specific terms _cockeyed_ and _lopsided_ and is useful when you're discussing something with elements of both.
@@Nevir202 true, some technical dialects use Dickered, or Hoopajooped
Yes, even where english is not the first language! ;o)
Dude. I have been binge watching your vidoes this week waiting you to upload a new video. Im so excited!
Welcome to a strange kind of addiction that is seriously hard to explain to your fellow peers....
“Breaks my heart to see things like that” - LOL. You love having things to fix, and we love that you do it so well, and with so much (dad) humour. To paraphrase one of the great Australian movies, “That’ll do ToT. That’ll do.”
Thank you for your video. I think this will help me profile my part for GT2 belt. I spent the better part of a day trying to find something to make it simple. This video along with the profile of the belt helped significantly, I hope. I haven't ordered the part or belt yet, but I'm confident in my design to work.
"Had to remove HALF a CHAIN LINK" HaHa 😅🤣😂🤪
"Just come in for closer look"
Ope sorry social distancing I'll have to trust you
You would be a great dad to have. You always seem so happy too.
Thanks ToT, enjoyed seeing your Solidworks thought process too.
9:00 Channel name changes to This Old Archimedes
Whatever floats your boat. ;)
"Invented electricity" I remember a story about Ben Franklin and a kite!!
Well Bennyboy just kinda discovered it in the most jackass way possible.
All joking aside, that gear/sprocket tooth tutorial was amazing! Thank you.
That braze to make a flat in Id was genius man .. love the channel !!!
As long as you don't spill milk on the barn door after the horse has burned the bridge.
You have a foot in two metaphors.
fantastic work. thanks for showing the failed ones and why they failed.
You sir are an amazing creator I absolutely love your narration and editing 10/10
The before sound reminds me of the sound of a old teletype.
Hey, me too!
Gods, we're old...
Hah the end gag. I know that feel.