Small Surface Grinder Part 10 - S02E35
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- เผยแพร่เมื่อ 12 ม.ค. 2025
- Back to the Grind….er. Making some big progress on the surface grinder Spindle in this episode.
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11:35 You know how people keep saying "welding warps metal"? Thank you for providing an excellent visual demo of how the welding on the opposite side has shrunk the metal, making it concave on that side and convex on the side you are milling.
Metal expands when heated, pushing away from the heated area. Any still-strong (cooler) metal resists and builds up energy, like a spring.
Then the metal being welded gets red hot to melting, loses its strength and deforms. The still-strong metal portions act like a spring, and release / move closer to their original shape, until the forces balance.
Then the weld cools to the point it freezes back into solid metal, and regains strength.
Then the weld cools the rest of the way, shrinking as it goes, pulling the weld together - and that applies force the opposite way to any still-strong metal.
This leaves you with a workpiece that is warped and has high internal forces; pieces fighting against each other.
When you machine away some of the metal, that will shift the balance.
"3/4 of the time is setup and measuring." I've worked in manufacturing for the past 20 years. This is so true. 'Setup' accounts for most of the cost in doing small volume runs. Love watching your channel, you guys are doing awesome.
Law-of Ohms I once heard the phrase that machining has two problems, and the latter can be the hardest: How do I cut this thing? How do I hold this thing?
This is why making jigs is an entire science and machining specialty of it's own, invaluable for production work.
80% in my case sometimes more even.
Excellent workmanship and even better video and editing. Let’s you see every detail. Cat sequence adds an extra dimension. Get him on the team full time, he seems good at quality control, he was inspecting everything. Keep up the good work.
I just found your channel. 12:40.....I've been doing metal work over 50 years....and yes, much time setting up, measuring or weld prepping....but you get the good results the first time...!
Great build!
And I love the editing and humor of it. Can't wait for heavy irony!
These videos are frinkin amazing! Love to see the finished product!
Bonus points for a cat helper in the shop
Love the way you present these videos. Good work!
holy crap ,
i just found out about this channel , and i love it!
I am officially subscribed.
I have a small chinese ini lathe and drill press in my patio.
I wish i lived in a house so i can garage them like ou guys do!
Fantastic video editing, and fun project to follow!
That is the kewlest machining cat alive....... love em !
Great bit of workmanship 👍🏻 love it 😊🇬🇧
"We spend 3/4 of the time setting up or measuring, rather than machining..." Yeah, that sounds very familiar!
That's why I am glad that I don't need to do high precision stuff most of the time. I *love* cutting corners! ;)
Well done for pushing through it and moving forward with the project. Building this thing is pretty hardcore!
Just wanted to say I'm really enjoying the series. Good job. I've wondered if something like this was possible.
What a fun journey you guys have embarked on!
Awesome, thanks for sharing. Kindest regards. Joe PS loved the over dub misic.
I'm sure this has been commented on before, but adjusting the back stop on the upper and lower blade guides on your bandsaw, will give you much better performance and blade life. The blade shouldn't move away from the work, as it's pushed into the cut.
Excellent series! Can't wait the next episode 👍
You should advance the screw cutter in a 29´5º slope with the compound, not right into the piece. It will give better control and surface finish.
I think I’m just here for the occasional Editing. Love it. Seriously, channel is great and enjoy the vids, but he editing is awesome. Thanks
0:28 As long as the cat does not weigh the same as a duck, you are fine.
At 8:30 or so, where you're looking for the center of the tube. Does that even work? If you had used a center or a twist bit I'm sure it would work well. I just don't know if it works with a square-end cutter.
Good progress guys thanks for the update.
this is so great! I've been following this build and ooh well! excited to see more. And btw the lighting of your videos is so great! what lights do you use? I'm curious! super neat :)
I love the way you edit your videos cool stuff and I believe your cat might like you a little bit!!!
@6:00 - At this point you are supposed to turn the boring-cutter over, cut the other side of the piece - while the lath is spinning in reverse and the tool is cutting as it is pulled out of the piece. That way, if you over run, you are in open air and not driving in you you work... (Internal threads are supposed to be cut the same way...)
@12:50 - You are not supposed to sue 1-2-3 parallel-blocks to fasten stuff down are you? There is no way that the 1-2-3 block is going to help in that application.
Lathes, mills, tigging, that's about as good as it gets
Keep doing what you're doing! Liking it.
would you consider adding a coolent pump/tray to the band saw? I dont know if its worth it to put time into it
For the horizontal bandsaw blade, if you're not using coolant a bi-metal blade is a good choice
I use the same style f saw you might find it more helpful using a grease stick instead of just running oil the grease stick helps clear the chips better I find.
I liked the visual effect of the bar stock in the lath breaking off cleanly, just after you scribed a line in the bluing . Makes observant people like me , Go " DId that just happen " or are those guys extracting the Michael?
" the level of precision is not our usual" coming from a guy that is trying to build a surface grinder in his garage.
After milling the top and boring the bearing fit on milled side, flip the part and clap to the milled surface and indicate your first bore. I know, its at the bottom but that IS the only way to get the two bores in-line.
When trying to find the center of a round object it is better to use a drill bit or a pointed piece of bar stock and a flat bar instead of a flat bottomed end mill because the end mill will cause the flat bar to level out even if slightly off center. Just some info from a 26 year Navy machinist.
Been waiting for your videos, keep it up!
With that much "Stick out" from the lathe chuck I would consider using a steady rest :)
Could you please explain this method of finding center axis from 8:41?? It looks quite accurate.
hello guys ( look take your time in videos take as much time as you want and make somthing really cool like your old videos make all the project and upload it will be better ) hope the best for u guys i do like this channel please dont make it die .
I had that exact bandsaw, mine sucks too.
Maybe look into setting up some kind of flood coolant system for the band saw. Maybe not so useful on the small diameter stuff but I’m those big bars it would help evacuate the chips a bit better than just some sprays
as soon as i commented i saw your post, i hope he sees this
Nonsense, I cut almost everyday, steels around the 3 inch diameter and sometimes bigger on my horizontal bandsaw with no coolant or lubrication and still have the same blade that I was using this time last year
Nice LM shirt. I worked for them for 17 years.
check the cat's paw frequently for sank in steel chips
Such a curious cat! :) Chief designer
Great video, and thanks for the shout out. :-)
Build Something Cool tt
Love the kitty cat.
Don`t spray water on what you`re cutting, that wont cool the saw :)
Spray on the saw blade BETWEEN the piece and the housing (preferably both sides)! :D
I think it is part 10 already
That's the best use of Super 77 since the declaration of its "known to the state of cancer to cause California." ;)
Something I've been wondering about, but I haven't heard addressed in other videos... How does the cutter start the thread cut in the same place on every pass? Is that something you have to manually set, or is it a feature of lathes with threading settings?
AWESOME, bro, you re great and pro!!!!
What kind of bearing did you use? Some sort of self-centering high speed bearing? I've never seen anything like this, these balls are huge.
Well thank you! Oh, you meant the bearing.
It's a 4 point contact bearing, ideal for axial loads in both ways, but not that much for radial loads actually... Also, it should be noted that it needs an enclosure with oil or grease in it and protecting the bearing from any outside dust or debris... For most of the applications you will probably just use a regular ballbearing. Not sure why they use that specific type of bearing, not at all logical in this setup..
Good Morning. How will you rectify it flat? I am following your project and I want to congratulate you for the excellent work. I am eager to see it worked out.
I love yours videos, i like the music, i like the job, all it,s perfect
Coolant on the cut off saw would really help.
TOT confirmed :-)
Great video, glad the project is advancing! Hey, what song is this? It's haunting ..
I was thinking the same thing. Tried using my phone to identify it but no luck.
ha, I tried Shazam too, even scoured the free youtube library .. couldnd't find it ..
Yes, please share the music credits on this one. You made some excellent choices!
I’m really loving the project too.
Yeah I would like to know the second song as well
anyone ever find the source of the song?
What was the source of the music for this video?
Pro tip: Don't wear gloves when using a drillpress. If it gets caught in a chip or the drill you can seriously injure yourself.
Otro excelente video, los veo todos continua asi.
Ive been waiting for this!
That cat's adorable.
6:30 how can you know what you're doing?
For thick stock like that I don't think 10-14 tpi is ideal. You probably already know this but for thicker stock less (tpi) is more. That looks like a very clean cut from here though for a bandsaw.
What is model name of your milling machine ?
Good on you for managing to boar out that round stock with those cheap Chinese brazed carbide bits. Those things in my experience are a nightmare.
MOO Tech seriously, geometry on them is terrible. It's like they saw a brazed bit once in a movie and tried to copy it. Good news is if you turn them enough and relieve the back they do seem to be made of decent carbide, so "for the price..." 😁
I've found they work OK if you grind them properly before using them.
What kind of altitudes do you expect this weird-looking rocket to reach? :)
I see you have the CAM extension to DaveCAD (tm)
Can you make a vid of how the lathe dog works, Ive seen them used in many machinist vids, but i'm guessing its such a 101 thing that no one ever seems to explain them. I get that the tail is being driven by the jaws but how is the dog actually attached to the part?
Love the TOT reference 👍
There is a set screw that bears down on the part, allowing the part to snug up on the internal v-groove.
Thanks Mr T 👍
I pity the fool that doesn't know about lathe dogs!
"Can you make a video of how the lathe dog works..." Ah, yeah, they did that already.
SimoWill75 Ah yeah, how about a link!
Fuck yeah, I'll do your job for you eh. It's so hard to find their video's.
If your cat's butt starts sticking to the mag-plate...he might be eating the chips :)
What title music instrumental acoustic this video ?
LM? Which location?
where i can order this Cristmas Tree Holder? 😉
Probably the same place youd need to order grammer lessons.
@@TanTan-ni4mg youd 😂
I love your videos .
Hey PA - would you mind sharing the music credits on this video? Seems like the masses want to know :) THANKS!
What was the second song.
First. Love you guys keep up the good work
Nice e85 in the background ;)
What happened to episodes 2-6?
Who does your music?
Satisfying
Love your videos man and the research you do when you dont know something is something most should aspire to want to copy but fuck off with the cats for gods sake lol. Also, that band saw is made to make nice slow cuts. Its made so theres low risk of something catastrophic from happening while your walking around doing other things
Nice vid
yep seemed like a bad idea but,, it worked!!
That's a cat-tastrophy waiting to happen
Completely forgot about this 😅
I think your bandsaw is cutting backwards.
No, lock-nuts are not supposed to be "tighter" than regular nuts. The "locking" uses different mechanics such as soft inserts (Nyloc) or split pins (Castle Nuts).
What you used to test the thread with was not a lock-nut. It was a flanged nut.
Windgonner en.m.wikipedia.org/wiki/Distorted_thread_locknut
As I said, they are not tighter, they have a distorted thread. That is, another type of mechanic for locking. The basic thread dimensions are still the same as a regular nut.
Deformed nuts are a completely different class of locknut, they really are supposed to be harder to thread on and off. It's not that the threads themselves are tighter, it's that the threads are intentionally misshapen so that they bind and aren't as likely to respond to harmonics.
Windgonner yes they're tighter they cut the threads then slightly crimp the nut. Hence the name distorted thread lock nut. They're used a lot for fwd car CV shafts.
Thatspindle setup made up for all the other fiddly crap with the frame.
just because a weld isnt pretty doesnt mean its not a good weld
keep it up
.......
I've got milling machine envy
So this surface grinder series hasn't been updated for 2 months, is the project dead?
Iron knee?
Ok, the bearings installed are really decent, angular contact bearings are definitely the way to go. Now I really wonder why your spindle sounds so awful now.
the brushless outrunner likely adds quite a bit of shaking would be my guess. they are not well balanced.
lovely !
Awesome
I'm subscribe your channel because of your cat...haha
Nice.
Part 10!!!
wonderful like your beard, but where is finishing
Heya, this project is awesome firstly. Second... Anyone ever tell you you look like Patt from two best friends brother? Just found your channel today and loving it, but wanted to point out the possible lost brother just in case...