Gear cutting on a Shaper (making the tool)
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- เผยแพร่เมื่อ 15 ส.ค. 2020
- Cutting Gears on a Shaper (making the tool). (Go to 21min 55sec to see the less detailed bit) This tool/device is designed to make any gear size from 46mm to 160mm diameter, and any number of teeth from 10 to 100.
By using sleeves and collars any variation of gear blank bore can be fitted. The one caviat is that keyways must be used. This video shows how I made the tool/device for the shaper and shows you how I use it. The gear making tool works well, and made an aluminium gear that meshed very nicely with the gear I copied it from. I’m also surpised how quickly the shaper made the gear, each tooth in the video, was formed in less than two minutes each, that wasn’t any where near the speed it could have completed the task. The only problem with this project is the huge quantity of index holes that are required to achieve the target number of gear sizes.
I am leaving the project open for anyone to modify and improve. enjoy.
I'd like to say thanks to Geoffrey Croker for inspiring me to make this project.
I would like to thank 'This old tony’ and ‘Mrpete222’ for their role in helping me understand the art of gear making. - แนวปฏิบัติและการใช้ชีวิต
Wow..30yrs as an engine machinist and this video made me realize I really don't know anything about machining. Very well done!
MarsTSM, thank you for your kind comments. My next video should be just as interesting (I hope). 👍
I don't think I would ever be able to cut gears like the setup you created. For one thing it takes someone with a good mechanical/engineer mindset to vision what's to come and how it would work. I was a welder for 40 years, certified on everything. I would be happy just to hang around and make the welds for you. Amazing work you did. Thanks so much.
You've put a tremendous amount of effort into making this work. Congratulations on successfully cutting your first gear!
Hi Peter, Thank you for comments. Regards
mind-numbingly impressive, *paul* … thanks for sharing the in-depth analysis and steps required.
pnamajck hi, thanks for your comments more to come.. 👍
Most of what you explained was above my head. I watched anyway as all this was astounding to me. I hope you patented this technique. Your ingenuity is on an insane level.
Hi, thanks. cheers
What you have done here reminds me of when I drilled over four thousand holes in a large plate. They had to be on location within one thousandth of an inch X Y axis. That is plus minus one thousand of an inch. This give me away as to where I am from the other side of the pond. The easy part was the Z axis that went through the plate. When drilling was done I reamed the holes with a two flute end mill. This made the hole very precisely. Worked like a charm. My reward, was an order for five more plates. I did not scrap a single plate. All within tolerance. The method you are using was the brainchild of Sunderland Gear Planer. Using a shaper with more bells and whistles.
I really enjoyed your video and hope you make many more Sir. Good luck and God bless too. Peace VF
Hi, thank you for your very kind comments.
I take my hat off to you. The amount of work you put in to this is mind blowing.
Hi, thanks. Things like this do take up a lot of time. Regards
Very good content, it deserves more viewers. The original challenge points to the reason why gear teeth have such shapes.
Hi Juan Zuluaga, thank you for your comment.
Slick.
Years ago there was a video by a gentleman from Denmark who was building a 1/4 scale Kingair RC plane powered by homemade turbo props. For the reduction gearing between the turbine and prop shaft he needed an internal helical toothed gear. He modified an old small milling machine or jig borer to cut the needed gears. That was probably the slickest piece of home shop gearing I've ever seen.
I haven’t seen that one.
Cracking video and the right pace
Congrats on an excellent job! Mind bogling complex, yet you make it look so easy.
Good luck!
Hi, the more complex the project the better I like them.
Perfect job!!!
A real joy to watch.
I hope I wil be able to acquire the same skills you have within the rest of my lifetime (approx 15 - 20 years)!!
Greetings from The Netherlands,
Ron
Hi Ron
Thanks for your comments..
If your mindset is focused then you already have the skills. As a pensioner my advantage is having time to make my wish come true.
Remember this (my motto)...
“Nothing is impossible, it just takes longer”.
Regards
The Shed Dweller.
WOW!!!!
It would be great to see more of your capabilities with the shaper. Judging by this video you're certainly a master with it and also with engineering. I fear that info and instruction on using a shaper to the fullest is both some of the most at risk of getting lost with time and underdeveloped knowledge in the machining world. That being said, and as a younger guy getting into machining, it's an honor to have your skills presented so well like this
Hi, Thank you for that, who knows what may happen in the next year. However, I have got plans to make al manor of things and lots of work using the shaper, including gears. But before that, I will be making an announcement soon, involving something quite big, well big for me anyway. cheers.
Very impressive set-up.
Excellent, thanks to share your knowledge!
Hi, thanks for watching, i’m glad to be of help.
Absolutely awesome. Great job. Thank you!
Hi, thanks for watching.
What a brilliant idea to make any involute gear with a single cutter per pressure angle! As most gears are 20 degrees, that means a single cutter for (almost) any gear. Nicely executed as well!
The idea would also work on a mill with a 1-tooth hob, I might give that a try. Don't have a shaper...
Hi, thanks for your comment. Good idea, let me know how you get on, maybe send a picture.. I’m all in favour of adaptions and modifications..👍
Brilliant solution you came up with there.
Hi, thank you. its not perfect but it does work.
regards.
Love it. Took me a tick to catch on, but I must say brilliant! Thumbs up for you sir.
Hi, thanks for watching, I’m glad you enjoyed it.
Good video. Easy to understand how your device worked. Thanks
Hi, thanks for you’re comments.
Thank you - this was very interesting to watch.
Hi, thank for watching.
Cudos sir that is some huge undertaking for a first gear making attempt.
I can say it is one of the best channels on youtube
Hi thanks.
Nice job. I was watching a channel with a homemade indexing wheel drive. He started the table 1 inch away to make sure all the backlash was out before the cut started. Your gear looks the part.
Hi, thanks, It is still in use. cheers.
Great work. I am tempted to make something similar for my shaper. I would probably use change gears as the basis of the indexing as probably 90 % of my needs would be covered by those numbers. Look forward to going through more of your videos
Hi. Thank you for your comments. let me know how you get on...
Remarkable! Congratulations on your success!
JIM
Hi Jim, thanks for your comment<
Regards
Great DIY project. Congrats on success !!!
I never had seen nothing like this. Amazing job and amazing result. My suggest for you is have a TIG weld machine to help you on the assembly. Congratulations for the nice device made.
Thank you, thanks for watching
That's a good job.
Interesting.
Hi, thanks for watching,
mate this is an awesome outcome! my "Gear Cutting on the Shaper" video series was a lot of fun to build, the moment when your first gear is completed, is such a great feeling hey! New subscriber here! there are two things I like about the orientation, that were concerns for us, firstly, you are supporting your blank against the cutting force of the shaper, something which I was concerned with our arrangement. Having the index plate outboard also keeps hands in a safer place than in our build.
secondly, there would be a slight rotational error introduced using the arm approach instead of the constant rotation provided by our wire guided setup, that said, you have a much more flexible PCD (PCR) setup, and I seriously doubt the error introduced would be significant or even measurable on all but the smallest tooth count gears. top job mate!
Hi JBFom OZ, I have enjoyed watching your channel and I thank you for your subscription and comments. When I made my first gear(shown in the video) I was still experimenting and I did for a short while run the shaper with the cross feed out of sequence, still I shaln’t use it as a 50 tooth gear, I will probably remachine the OD and make it in to another smaller gear. My shaper as you can see, is quite old and is in need of some serious repair but that is for another day.
Cheers Mate
Regards.
Great Job! Thanks for sharing
I had seen the cable actuated versions and felt that solution to be a bit questionable - I wondered about using a solid linkage and you have proven that works.
I would love to see a video on your excel sheet that calculates out all the gear cutting figures
I cant believe you drilled all those holes - when the day comes for me to do that I plan to use the DRO hole circle function but I don’t know if that is wise
Thanks for the video - you presented that really well
Hi Peter.
Thanks for your comments, much appreciated.
The DRO technique, in my mind, is possibly the most difficult way to do this. Let’s take the 100 hole range, you’ll have to calculate two dimensions ‘X’ and ‘Y’ for each of the 100 holes, then recalculate them again before you commit. It was bad enough on the dividing table. Mind you, for the ranges like the prime numbers, it will prove invaluable.
I’ve not published the Apple spreadsheet because I haven’t verified it.
I am still making fine tuning adjustments, and may make another short video to explain setups and alterations. I may have to make a finer feed to my shaper cross slide, but because it’s an old and worn machine some things will need repairing.
Good luck with your version.
Regards.
the welding is good and the video is very good - thank u
Hi, thank you for your very kind comments. Regards
Great job
Hi Cledwyn, Thank you for your comments.
geez you have some beautiful tools there!
Hi, thanks for your feedback.
I wish I had 1/10th of your skill. When you first said you were going to make an index plate with 3500 holes, I thought "impossible", unless he has a GOOD CNC MILL.
Hi,. Skill level comes with practice and I’ve done this for many years without CNC assistance, That has helped, thanks for watching.
Magnifico trabajo
Gracias, gracias por vernos.
Thank you
You nailed it when you suggested a CNC to do the positioning, hole drilling.
Hi, Wish i could afford one.
Nice job!
very very good video..thanks for your time
Hi, thanks for your comment.
Well done!
Hill Top Machine Works Hi, thanks for your comment.
Magnifico!
Ciao, grazie per aver guardato.
Восхищён! Великолепное воплощение отличного инструмента!
Спасибо за ваши Коментарии. рад, что вам понравилось видео. С уважением.
Great information Paul, really enjoying your channel, just subbed. Geoffrey got a great channel, love the drill press series.
Cheers
Hi Rick, he certainly has got a good channel I enjoy visiting. Thank you for your comments.
Bloody brilliant!
If you are not keen on welding, a low-stressed part such as the one with the long slot in it, could be silver-soldered together and be perfectly adequate, cheers Charlie
Hi Charlie, thanks for your feedback.
I can see I'll have to try and invest a bit more towards more tooling. cheers.
Very nice work Sir.
Hi, thank you for your comment.
You clever old stick...well done.
Ta mate.👍
Thanks 👍👍
Hi, thanks for watching.
Awesome build. I can't imagine drilling that many holes
Hi Craig.
Thanks for your comment. I drilled the holes 100 to 200 per day, so as to keep the chances of errors to a minimum. Each range of holes had to be pre checked before cutting, even then one set of holes had to be scrapped..
interesting video. i really liked it.
Thank you for your comments.
There's a lot of thinking in this project. Interesting thinking.
@Paul Hopewell Feeling good. Thank you.
@Paul Hopewell I'm feeling OK. thanks.
What a pleasure it is to watch you work. I wish I were there and could add my welding skills of 40 years. I always learn from your great videos. God Bless and Thanks, Paul Greenlee
I forgot to ask you when you use your shaper compared to a milling machine. Do you think the learning curve to run a shaper is easier compared to learning how to operate a milling machine? Big difference in price for a fact meaning the shaper is less expensive. Thanks again for the help.
Hi, thanks for your comments. I had operated one only once, in college and it was harder machine. meaning that a machine that is a balls out everything. If you take a bit too big a bite, the shaper will destroy itself to please you. The tutor always stood over the student while it was being set up. The saying is if you have a shaper you'll never make a profit because they are slow. I would beg to differ if the machine is properly used.
Regards.
Good job sir
Thanks for watching
Truly, sir - you are obviously a well-balanced master of many modes of machine operation and hand fabrication, understandably hindered by budgetary constraints and lack of equipment/toolage... I greatly appreciate your sharing of both your handiwork and your ideas. I find you to be suavely sufficient and honestly self-confident, able, understandable, well-versed in your practices and able to contend with the work at hand.
You did a great job narrating and shooting/cutting together the video... and then you succeeded in producing a working prototype Good show. I gave you a thumbs up within ten seconds of watching - and subscribed another 30 seconds later; because you clearly deserve it. Best wishes for the growth of your channel and subs, and now I'm off to watch your other endeavors!
Thank you for your comments and subscribing, it is very much appreciated.
The previous videos are very much a steep learning curve and you will notice a quality difference as I progress through the various videos, my appolgies for the poorer quality videos.
It isn’t easy producing videos to a quality apreciated by many. I have many projects underway and my next project and video is going to be a bit more of a challenge.
Once again,. Thank you
Regards.
My gob has been seriously smacked....great to watch. I will now go to my shed and carve up some wood into chips and sawdust.
Peter Whitmore Hi, thanks for your feedback.
I purchased 11 different index plates off from EBAY (7.25" dia and under $200) all the same size, all specifically different in hole counts (some have 4/5 different count rows of holes on the same plate) and on yet another EBAY buy I purchased the spring loaded hole spacer pin keeper (used) off from some brand of original indexer (?), so that I could do as you are describing, BUT I made my mount such that I could cut gears as large as 13" diameter (maximum height drop on my shaper (Invicta 4A) table to cutter tool), so basically I can cut any tooth pattern from 4 to about 160. I cannot stress the need for an extremely ACCURATE GRIND on the tool cutter as this is the hardest of all of the operations. I wish that some manufacture made proper different size carbide inserts so all one would have to do is change the insert in the tool holder for the different needs of the different size gear teeth faces being cut, as I have no way of properly grinding them and that has proven to be the COST ITEM in the equation for doing the work yourself. Usually it takes me a minimum of 3 to 4 rotation rounds before I can achieve the full depth of the needed cut (raising the table needed X height after each pass) until the final depth is achieved. (NOTE: very accurate tooth gauge set required to maintain accuracy of measured depth and this item from Boston Gear (metal set) cost well in excess of $90), but absolutely all worth the cost to save a piece of equipment for which parts availability ceased 50 to 80 years ago.
Hi, thank you for watching, I take it that you have constructed one for yourself or something similar.
The tool is a bit of a pain to cut to shape, confirming size and shape without a shadowgraph equally so.
I wrote a spread sheet program to calculate the tip width required for any given mod. cheers for now.
nice job
hi, thanks, my elbow was a bit wobbly for a few days after drilling so many holes.
Well done Paul. I've been scratching head over the exact same thing the past few weeks. And here a solution pops up!
Sure, there might be a small error in the arc, but it should really be minimal. After all, we are not making high precision gears.
I'm actually busy with a round column fix for my mill drill like yours at the moment.
Hi, thank you for your comments. Yes there is a very small error and like you say they’re not high precision gears. I am interested in seeing how you solve that “round mill post” problem because I too am going to try and sort that issue, one day.
@@Thesheddweller Almost done with it. I'll try pick up you e mail address from your channel and forward picks of how I did it. This is a must for that silly design. ☺
@@terryb5612, my email thesheddweller@hotmail.com. looking forward to it..
I've got some videos detailing a solution to the round column mill Bruce Whitham and I developed on my RF30 round column mill, see the Rong Foo playlist in my channel, might be some useful ideas there for you guys. Bruce is also now selling this solution as a kit, called the Tru-Line 8 if you wanted an off the shelf option as well.
@@JBFromOZ I have seen this video and I like it.
Excellent. You just solved my dilemma of recreating a 33-1/3DP 20PA gear for my Hardinge cross feed screw. I tried a custom single point on the mill and rotary table and failed. Using the shaper with a triangle profile will be so much easier!
Thanks for your comments. glad to have been of help. regards.
, can you explain the relationship between the Diametral pitch and how far you go up on your sliding scale to give you every possible value?
@@rallymax2 Hi, Please remember that prior to building this tool, I had never made a gear in my life, that said, I read a book on gear cutting and watched youtube to get a sense of what it was all about. Knowing that I, like so many, know that I can’t make precision gears.
πολυ καλο μπραβο. δεν το σκεφτικα ποτε
Γεια, ευχαριστώ για το σχόλιό σας.
Felicidades sr no hablo inglés pero me quedé hasta lo último interesante su mecanismo y su buen engrane saludos desde México
Gracias Saludos
Muito bom.amigo
Oi, obrigado por seu feedback.
Very very cool! Would it be possible for you to post the excel sheet? That sounds like a very interesting read.
Also, and maybe I didn’t catch it (if so, I apologize) but what did you end up having for divisions for each of the plates? I probably would also be interested in going up to 120 teeth, only for the fact so you can do an excellent approximation of Pi (5 x 71) / 113.
This is a nice solution if you don’t need a semi-universal head like a bs0. Kudos!!
Jeff Pedlow Hi Jeff, I’m not releasing the spreadsheet sheet for two reasons. 1. I’ve not verified anything on it (it did work on the 50 tooth gear). 2.it was done on an apple spread sheet, I did rush it and as a result it’s a bit disjointed but for me it did give the results I needed.
120 holes is going to be a challenge I would like to hear how you get on.
Paul - I am a huge fan. Will you be remaking the gears for the South Bend?
I have got to make a new set of gears. I also have many other projects involving gears, necessitating the shapers use. Meanwhile, I have a very big project on this may take a long while. I will let everybody know nearer the time. cheers.
Hello, I agree that TOT knows about gears but Matias Wandel he know more about gears 🙂👍 it nice when you want make gears and you have only a shaper 👍👍
Hi, thanks for your comments. Much appreciated. Thank you.
Hey baked beans and bread are good....like the build will save build and try also exercise my brain conversion metric to inch
I know, but… 💨
think you can do with less row of holes (you can make 50 teeth by using the 100 row but skip a hole every step 25 by skipping 3 holes etc)
Hi. thanks for your comments.
Sir it is awesome! I want a planer :D
I haven't got a drawing at the moment, I will get one published as soon as possible.
@@Thesheddweller "planer" what? I mean shaper. Anyway the plans clound be useful.
Another great video and project! I'll trade you some of my welding skill for some of your CAD skills anytime you want.
Hi thank you for your comments. I just join lines together on a CAD program called VIACAD pro, it's easy to use and produce drawings.
Great Name "Metal Illness"
Making a dividing plate looks like quite a chore. I'd be employing a laser cutter or CNC machine for that job...
Hi, I really wouldn’t blame you.
What about the error that the linkage introduces compared to the string variant?
As far as I understand, the linkage introduces a error that is the tangent function of the gear roll angle, a small number in the beginning, getting larger to infinite as the angle approaches 90°. So small gear tooth error with small, shallow teeth (if the tool disengages at a small angle) and large error if cutting few deep teeth, as the tool remains in the tooth profile for larger angles?
I have been contacted by Tomas Berger (I believe from Czechoslovakia) who has analysed the system, if you go to either of the two addresses below you should see his results. The linkage backlash, after I’d replaced the end bushes, had only a very slight play mostly flex from the anchor bar if I force it. I would assume (but I don’t know for sure) that the wire system would be more accurate at the extremes. I believe that at the extremes of travel, with the tie bar system, the rotational circumference accelerates.
berger240.rajce.idnes.cz/youtube/1466314247
Is there a reason why you didn't use silver soldering to get a tidier result than welding?
Hi Brian, yes, simply that I’ve got a welder and I’ve never done silver soldering.
All my engineering life, it’s been my job to Finnish items welded together.. and the guys who welded at the factory I worked at, were the best of the best, I would embarrass them with my efforts if they saw my awful pigeon poo welding.
Regards
Thank you for sharing your work, I was anxious for Jeffrey Crocker to continue his efforts to build one of these. Is there any chance you would share the cutter forming process? I cannot seem to find this information anyplace. You did a great job building this tool.
Hi, are you asking for my design notes or drawings for the tool? I haven't any drawings yet but when I get a spare day I will run some up and publish them for free like the thread cutting tool in my web site... www.thesheddweller.com.
@@Thesheddweller I somehow missed your reply. I have a slightly different notion for the fixture, I want to use half-ground pins so I can stack gage blocks to set the PCR. I think I would get less error that way. I was asking about creating the correct cutter form to use for this operation. The only part of this process that I am missing is the cutter geometry that results in the correct tooth form. I have searched online, and read many older texts looking for some guidance on this issue. If I could find the information for rack-form geometry it should be the same, but I’m coming up empty. I must be missing it too somehow.
@@someguy1508 I too didn’t have any luck getting a table to help me calculate the shape of cutter tools for various rack sizes that I required, so I made my own on a spread sheet (its on an apple program called numbers).
All I have to do is enter the.. mod, PA and how many teeth on the gear.
it calculates and outputs the following,.. tip width, depth of cut, gear blank size and the DPC in both metric and imperial sizes.
You would think that after calculating all that and getting the spread sheet to work like it does. I have never verified it and I haven’t got a clue how to send it to anyone. Its something to do with being a member of the old farts club. :-D
P.S. the gear cutter device has some faults rigidity is the most common issue.
i would also suggest that the tool be very sharp and and the feed rate not to exceed more than 0.1mm per stroke the tool must also pass right through. Despite the feed rate, the overall cutting time is comparable to milling.(if the gear is a very wide gear it is much faster than milling)
@@Thesheddweller I do not see how there is no table or formula for calculating the values for the cutters. I have searched through many very old texts, and found that they all refer to generating gears on Planer Mills and show the devices for this task. The equipment is much like the fixture you have created for your shaper. I have found repeated reference to generating gears by shaper as well, including fixture designs similar to yours, and still no reference to the cutting tool. I have to be missing something that is so obvious and simple that it didn’t even need to be written down. I am sure that I’m over thinking the problem, I just cannot figure what I am missing. Thank you for your help and inspiration, maybe someone can clue me in if they see this, or point me in the right direction. Good luck, thank you for sharing your work.
How to get relation between linear travelling of work piece and its rotation for diffrent sizes
I mean balance equation
Thanks for your good work
Hi, simply look at a rack then look at how a gear would run over that rack, then reverse engineer how the functional relations between the two interact then you begin to see a picture of how to form the gear from the rack.
I can hammer many things to shape and weld quite well and I can handle the idea of gearing but this is bordering on rocket science to me, I want to make gears using a shaper but I hadn't considered how to make them accurately, thanks for opening my eyes to the process and showing me some ways forward....I need to build the shaper first then I can get started. I know can do it I'm just not sure I want to make more than one size of gear tooth...atleast not to start with (yes I know) famous last words..
Spreadsheets are creative quantum physics to me ...not going there lol
Hi, my dad always said "you never know till you suck it and see". I guess he was right. cheers
Very impressed with what you have managed to do there. I think you have an error when you are setting the PCD with the calipers. Should this not be the base circle diameter? For a spur gear this is calculated by multiplying the PCD of the gear by the cosine of the pressure angle. The base circle is the diameter the involute curve is generated from, not the pitch circle.
Thanks for your comments. I used the PCD because this is the point that two wheels, one driver and one driven, would ordinarily make contact before teeth are put in to the equation.
I've not tried it, but if I set the sliding pin to the base circle, at the dedendum, I believe the tops of the teeth will be more pointed, equally, if I set the sliding pin higher like nearer the top of the addendum the top of the teeth will be broader. But like I say I’ve not tried it. regards.
@@Thesheddweller Your definition of the PCD is correct for standard gears, but the involute is still generated from the base diameter. So you will have a small pressure angle error on your teeth, but if it is not impacting performance too much it should be fine. Still a very good effort.
PS. There is an error in my previous post. I stated B. Dia = PCD x Cos PA, but it should be Ref Dia x Cos PA, as Ref dia and PCD are dirrefent on non standard gears.
Does the height of The Pusher arm on the angle iron matter, thanks
Hi Earle, thanks for your comment. to be honest I don't think so, it does allow the disk to be rotated further round to the right, but it isn't that important because the cutting arch is so small.
regards
one of youtube's finer videos; because we need gears...
Hi thanks for your comments, cheers.
How do you determine the size of the cutting tool ie the width at the tip
Hi. the formulae I used is :-
Dedendum x Tan(P.A.) = sum’A’
Circular Pitch / 2 = Tooth Width
Tooth width - (sum’A’ x 2) = tip width.
that’s how I calculated it.
Hello, the tool is really beautiful even the care with which it was created but it has a geometry error on the linkage ... the variation of the angle of the linkage during rotation creates a defect (even if small) in the profile geometry of the generated tooth. However the work with the shaper is always interesting and thanks for such a nice video
Flavio Masenadore thanks for your comments, I am aware of the geometric error due to the linkage. That is going to be dealt with once the new track rods arrive...
a point on the pitch circle of the gear blank should travel exactly the same distance on the circular patch as the lateral distance that the shaper table travels shouldn’t it? I don’t see how this arm device can do this. There will always be a cosine angle error. Having said that, it could well be that the error is insignificant and does not pose a practical problem. I’m not sure what you mean by track rods. My concept for a similar device would use a stepper motor. Of course my concept is all talk at this point whereas you have actually done something, so hats off to you.
Would this method produce the right profile in bevel gears?
@@sblack48 Hi thanks for watching. I would doubt it, straight involute gears maintain a radial profile along it's axis. I’ve not tried it, but I would think that the greater the helix the teeth profile will distort, it’s possible that the root between each tooth will become concave. but thats just a guess.
@@sblack48 Hi. There is a cosine error as you point out, from what I understand the error shows up greatest at 10 teeth and less at 18. It is true that there is a slight acceleration towards the extreme ends of the arch of rotational travel durring the cut. Track rod ends and an adjustable rod will replace the current tie bar to aid trimming at top dead centre and remove the .002" - .003” backlash leaving whatever flex remains in the fixed anchoring point. Using a stepper motor anchored to the table is a brilliant way of dealing with the gears radial positioning. let me know how you get on. Regards
Okay, would some one please define PCD and PCR? I guessed pitch circle diameter and radius but not sure that makes sense.
Hi Robert. We know that radius is half diameter, all I am doing is keeping the focus of the project to relative to the centre of the process. hope this helps. regards
If, instead of drilling so many holes on so many plates, would it be possible - and I’m not a math guy - to drill sets of holes that radiate out from the center in an arch then combine that with a series of indexing holes around the outer edge with their own, separate, indexing pin. Then, by working your way around the indexing face at say the sixth hole in each arch - then rotating the indexing plate to the next edge hole , say each “C” hole of a series of holes labeled abcd(etc.) then, it seems to me that you could have a single plate that would index thousands of gear teeth and a simple chart that would tell you that C-6 is a 52 toothed gear - just a thought!
Hi Matt. Thanks for you comment and suggestion.
That would be a pefect solution, but I doubt it would work.
Firstly, each radial arch of drilled holes would have to increase in numbers as the radius increases, restricting the next radial arch of holes.
Secondly, the combination could be quite complex for example.. to make say 11 holes may need a combination like A1, C6, E2, F9,…. requireing some sort of chart to navigate the holes in the correct sequence.
Thirdly, the idea, although brilliant, I think you would find that the range of holes, 'while in the mind cloud', may appear possible, a bit like the penrose stairs, but when put to paper prior to being put in to practice, is a different matter.
Try working out this problem, using that idea, What combination would you choose to get a set of 99, 77, 43 and 11 gears with properly spaced teeth? and what number of holes, while drilling the plate, would you start with?
Maybe it is possible, but that is probably something for someone else to have a crack at, I remain pessimistic over this one.
However, it won’t stop me looking at it.
25:46 it appears that the step over is occurring on the cutting stroke.
It's possible the motor is running backwards. It seems like the cutting stroke is faster than the return.
Newbee here from TX, USA. Very informing and well done. Picking up a vintage Klopp 450 this morning, and once restored, will be moving on to making indexting plates. I have researched other creators prior to finding your channel, but a ever interrest concept. Thx for shariing, and will be a long time watcher,,,please fill free to check out our small channel,,Bear.
thanks for watching. i’m glad you enjoyed the video
Whaahh!
Hi cncfontaine, cheers.
Regards
а наши, что, не смотрят. Где человеческие комменты? Но лайк.
FainderS Kurs-koi, извините, я не понял вашего вопроса.
@@Thesheddweller Пардон. Это не вопрос. Это я нашим просмотрщикам, в упрек.
Хорошая работа. Мне понравилось. Я в английском не понимаю, даже со словарем. Хоть и пять раз учил, сейчас шестой. учим. Но принцип понял. Как технарь, то интересное решение, хотя сложное в расчетах. Но можно вормировать интересные зубы. В смысле профиль. для работы, я бы применил "немецкий" условно, тройной долбяк. он максимально приближает профиль зуба. Извините, что не через гугл переводчик.
FainderS Kurs-koi Спасибо за очень добрые комментарии. Профиль зуба не идеален, но очень близок.
спасибо за просмотр и спасибо друзьям.
С уважением
How can i contact you
Through my email address thesheddweller@hotmail.com
Ок
Cheers
Swaf
Hi, “swarf” machining waste.
Buy a small hobber. This you did put too many errors into gears. For this to run smoothly, quite impossible, pitch errors would be too great.
Thanks for your comments but, I am a pensioner and I can’t afford a hobber of any size not to mention the cost of each type of hob cutter to make each mod. The tool I built has saved me a huge amount of cash making all sorts of gears and they all function very well. It is true that there are potential errors but, I’m not making precision gears. Regards
I m studying polytechnic 5th semester mechanical engineering production
Yeah, everything is simple until you start looking at the math!
Also can I borrow you're brain? I need to make something like this
Tecnología muy obsoleta. Hay otro métodos más rápidos y con los flancos adecuados para una mayor duración.
Hi, yes this is true, technology has advanced but, my pension hasn't. cheers
Hola, sí, esto es cierto, la tecnología ha avanzado, pero mi pensión no. Saludos
This method will not produce perfect invlute gears. Tip of the tooth will be cut deeper than it should. It will probable work fine for larger teeth counts, but for 10 teeth gear it will be completly wrong. It is because as you are more away from the center the angle of gear is less linearly dependend on sliding. I didnt watch the video completly(sorry, not much time), so if you are aware of it.... PS: otherwise very intersting. Subscribed!
It is true, the gear teeth are not perfect, and I don’t claim that to be the case. I haven’t cut any small number gears yet, but I will have a go, just to have a look and see. Cheers
@@Thesheddweller i did some experimenting and found 25t is almost perfect 18t is okish and 16t is probably limit.i make image of profiles for diferent teeth counts, if enebody is interested. berger240.rajce.idnes.cz/youtube/1466314247
img37.rajce.idnes.cz/d3703/17/17020/17020865_a432df949b3d77cf46211f77e004a2f4/images/gearerror.jpg?ver=0
@@tomasberger9980 Fantasic, I can see that I,ll have to do a bit more work to get this tool to work better for the smaller number tooth gears. cheers
SO, IS THIS THE END OF THE CONTENT THEN?
Hi, thanks for your comment, although I’m unsure what you mean by your question. Cheers
@@Thesheddweller 2 months since the last video, we need more, this isna great channel. X
@@richiejbhoy1888 HI, Thanks, I’m currently working on a powered center grinder adaptor to fit on a surface grinder as well as a website to let people have my sketches for free. I have other work that I do for old cars and bikes that keeps me quite busy (as well as answering all my "fan mail”) next one soon. appologies for big gaps in videos.
You do have a dividing head.
Now you make a new dividing head with the help of this dividing head. I don't see the point.
Hi, thanks for your comment. Yes, it was a lot of hard work to make another indexing device. However, I did mention right at the beginning of that video that I would take up the challenge of making a gear on a Shaper. My universal indexing table was too big to fit on the Shaper, so I had no choice but to make this simplified indexing device. It did, and still does, make an extraordinary number of gears of any size to a reasonable diameter with any DP or module on the shaper and, it fits the milling machine, surface grinder and the tool cutter grinder. that's got to be a bonus. Cheers.
There is no reason why you need more than 19 holes to index for 100 teeth. One circle of ten.
One circle of nine.
Hi thanks for your comments. You've got me there, I can’t see how one can get 100 direct indexes using 19 holes. I might even have to go back to the drawing board.
cheers.
Why do people point out they aren't a good welder? Why not spend some time welding to get better doing it OR blame poor welding on your wife or dog?
интересно но не понятно))
Извините за отсутствие ясности. Я постараюсь сделать лучше.
Подскажите, что непонятно?
@@Thesheddweller плоо понимаю по английски.. былобы неплохо иметь украинские или росийские субтитры.
@@user-mo6jt1nu2h Спасибо за просмотр. Меня спрашивали на французском, испанском, португальском, немецком, итальянском, русском ... список бесконечен.
Я спрошу "TH-cam", будут ли они делать субтитры на определенных языках, чтобы они соответствовали стране просмотра видео, если они это сделают, я постараюсь это сделать.