Home Shop Gear Hobbing Machine (Mostly) Finished. First chips, no math!
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- čas přidán 9. 05. 2023
- Mostly finished gear hobbing machine based on a very old universal milling machine. First chips, first gear cut, and proof of concept for the differential system. No math, but if anyone wants the final version math and change gear tables, just drop a comment.
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Really nice! I appreciate you sharing these videos. Always a pleasure and an inspiration. Cheers.
Вами проделана огромная умственная и физическая работа! И в награду превосходный результат. Браво!
Can’t read or translate, but I think the last word is “thanks!” I’m glad you liked it!
@@thomasstover6272 It's a pity that you don't have an interpreter. The last word is bravo!
A very kind thing to say!
Well, this is one of the coolest things I've ever seen in my entire life. Guess I'll go back to the books, clearly I still have MUCH to learn.
Wow! What a nice thing to say! This has been some of the best learning for me…keeps me young!
@@thomasstover6272 Keep moving, keep learning, and you'll keep living! That's what I say anyway. Absolutely incredible project, keep it up!
What a nice journey you have shared. Thank you
Just found your channel. I have a severe case of skill envy to work on. Excellent video work and superb thinking.
Tony
I am impressed! Very courageous sir.
It’s a fine line between courage and crazy, I’m told!
Hi Tom! I just watched all your videos on the Oesterlein mill rebuild and gear hobbing setup (yes, including the math!). Very impressive and you've obviously put months of work into this. I particularly like the way you built the differential. Though I prefer the electronic division method myself simply for ease of use (especially for primes), to see an entirely mechanical solution is a thing of beauty. Very well done!
Also your video production is top quality and I think your channel will go a long way. 👍👍
Thanks for watching, Andy! You clearly helped set me on this path, and figuring all this stuff out has been a ton of fun! I think my next project will be a 40:1 worm drive work spindle, and I may attempt a feed-driven differential for Pfauter-method helical gears. I’m intimidated enough by that that I know it’s something I have to do…Cheers!
Hi, Andy! I’ve updated my channel to include making the new spindle, lead compensation system, and making a helical gear by the Pfauter method. FYI.
@@thomasstover6272 Thanks Tom! I'd watched your previous videos but I need to catch up on your more recent ones. I'll be watching with interest!
agreed, there is nothing like watching gears go round! amazing work!
Indeed!
This reminds me of Andy's Machines, I am sure he'd love this...
Andy was a big inspiration, and I built a similar system earlier.
Lovely looking machine! Well done indeed!
Thanks!
Tom your gear machine is so fascinating.
Your passion for making gears is definitely to the next level.
Thanks for sharing.
I just subscribed to your channel.
Take care, Ed.
Thanks, Ed! Stop by often…there will be more. Next project will be a custom work spindle. I’ve learned a lot doing this, and that makes it fun.
@@thomasstover6272 I have watched a few times.
Not sure if I commented or not.
Never subscribed.
I should have.
Nice content.
Take care, Ed.
Nice progress, looking good👍
To say this is incredibly impressive would the understatement of all time. It's just amazing!
I only wish you had documented with video every step along the way from idea to completion. Thanks. Regards.
Thanks for the kind comment! There’s a fair amount of the story in the video backlist, if you are interested..best regards!
The craftsmanship is spot on but it needs a safety guard there's a lot to get hanked up on 👍
You’re not wrong about that! Someday…
I found your channel today and sub immediately. You are obviously the professor. I am humbly the student.
Very kind words, Kevin! Thanks!
…in fact, I attend shop class every day, wherein I am the Student and the universe the Professor!
@@thomasstover6272 Your a wise man I know this because you have learned the lesson of humility. Which is the toughest lesson of all.
lovely work
Thanks! Gears are a bit of a thing, here…
Defo new sub here! This is incredible! How did not find your channel before???
Keep up the good work,
Greg
Thanks!
I think that was a truly amazing project, thank you very much for sharing it. Quite impressive !
Thanks!
What a magnificent effort. No one will copy your design because they can't find a 1928 milling machine. You do an extraordinary with only pencil and paper. Of course they went to the moon with a pencil too. I built an electronic hobber years ago. Works great. I'm near Buffalo NY are you nearby?
Fort Wayne, IN. Thanks for the kind word, but I think you can do this with pretty much any horizontal universal machine. I did the electronic hobber, too, but I had a hard time getting consistent results…hence the old school approach. All the best to you, John!
it's even got a fuel filter
Thanks for sharing.
You have an interesting rabbit hole. ❤
Indeed! Thanks!
Your are a talented person. Amazing job.
Thanks! Just having fun, really…
Pretty cool. I would suggest a limit switch in line with the motor switch to prevent over travel into your dividing head. Cool stuff though!
Good idea! Hitting the hardened jaws is hard on the hob…I have some experience with that, as it happens!
I’m a handle cranking Tool and die maker… still working.. it looks like you made this on manual equipment… am I right?… nice clean work .. my compliments
Yes, thanks! I’ve learned a lot doing this project…mainly by screwing up. I appreciate your kind words very much!
Failure is life’s most sincere opportunity to enlighten one’s self to improve.. I highly recommend plenty of failure !!! It pays dividends
I just subscribed though I thought I had subscribed when I watched you build the differential some time back which is something of an oddity, a nice oddity but an oddity that I don’t recall seeing on other horizontal mills. Most jus change several gears to get the correct rotation of the gear being Hobbes. I’m NOT a machinist, more of a wannabe. I don’t recall exactly why you were building the differential. Normally a differential transmits output power in a different plane/direction but I either missed it or couldn’t see if it was driving the output shaft rotation to your rotary table for the rotation of the gear being manufactured. Very nice looking work. And, quite a lot of work. Yep, that was quite the rabbit hole.
Thanks! I missed this when you posted it…the differential serves as a kind of mechanical analog computer that allows perfect division of a prime number, which enables the making of prime number gears precisely. Non-prime gears can be made with a simple gear train to index the workpiece.
Genius
well done
Great job mate
Thanks!
Can you please explain calculation behind differential constant? How to get?
I have just watched your latest video because it popped into my recommendations. As is said on my comment over there, i have no clue what a gear hobbing thing ist, i guess its kind of a gear cutting device (simply said) and i really like the videos , even if i have no idea what it is😅.
But what really doesnt go into my head is, why does it need a differntial? To distribute the force evenly?
Anyway, i am checking your other video out now😊
The differential allows you to create accurate gear ratios to create gears without needing to already have a gear with that number of teeth. This is very handy when trying to make gears with a prime number of teeth, such as a 37 tooth gear, which, without the differential, would require you to have a 37 tooth gear (or some multiple of that number) somewhere in your gear train.
There's a video a couple back in the series where Tom does a much better job than me of explaining the math of it.
@@Gumbatron01 thank you so much for your reply! I am a hobby car mechanic and pretty good at it so i know what diff's do and how they do it but of a case to use a diff for that i have never heard of😅.
Now that i know it, it makes just so much sense... So that is the reason why most Lego Technic models (bigger ones) use differentials in places where i was wondering why they did it...
But now i cant get over feeling dumb for bot knowing🤦♂️😂
Very nice job on your latest rev., it is a serious design achievement . Are you using industrial hobs for your machining? Also do you have a source for American made industrial hobs? This is one area where I have not found anything I can use. I have thought about making my own hobs ,but I don't have the equipment to give the accuracy I would want for making good gears. Looking forward to you finishing your machine setup.
Thanks, John! I bought a batch of hobs on ebay from a gent who was getting out of the business. It’s a mixed bag of US and Chinese. I’ve actually had very good results with import hobs. I found a place called Ash Gear Supply in Detroit. They have a website. They have hobs for rent or for sale. I bought a used hob from them, and it came freshly sharpened and works great.
@@thomasstover6272 Thanks Tom for the Detroit source, I will check them out when I decide what I am going to do. As a rule I don't buy any Asian equipment, I have all American , English, Japanese, or German tools and equipment. Continued Success on your final rev.
Can you send me written books on the number of teeth or a design that explains the number of teeth and all the gears that I need in manufacturing from A to Z until the success and structure of the design of the hoop machine?
Awesome work. Naive question, but what is the use of the differential here?
Not a naive question! The way a simple index gear train works, it’s not possible to make a gear with a prime number of teeth without already having that gear or an integer multiple of it. The math of the differential allows you to make, say, a 37 tooth gear without having a 37 tooth gear, or a 74, or a 111 tooth gear. If you would like a more complete explanation, several of the videos on this channel go deeper into the math. The differential also allows you to make any tooth count with relatively few change gears.
@thomasstover6272 Ah i see, thanks!
It needs a proper drink holder.
Thanks! I’ll add that to the list…right after the heated on-off switch!
…like your profile! Sticks rule.
Can you share the gearing combination in that machine sir?
Mantan
WoW!! Exellent . Subscribe chanell👍👍👍💪
Wow great job.
Thanks!