I have done this on mills too. It is a very good method to create custom worm gear sets. You get very good engagement as well. I had to make these type of gear sets for scientific instruments. No one made the sizes and gear ratio I needed. Nice video and methods

I spent fifty years in toolrooms, building stamping dies, injection molds, and lots of prototype gizmos. I am very impressed.

Wow, that is the most effed up way I've ever seen a gear cut, and it worked just fine. Props.

MAN! Man! MAN!!! This is genius! Using a common threading bit and a lathe... oh boy I will make so many worm reductors now lol THANK YOU!

It’s been a pleasure viewing your gears, young man. Thank for the performance.

Using threading tap is a briliant idea. Thanks for the film!

Very nicely done. Might be a good idea to cover the ways of the lathe when using the Dremel.

I am so thankful to have come across this wonderful,amazing, video. Thank you very much!!!!

A special work! I've been working with machines for 15 years but I can still learn tricks from you. Today's technology no longer allows you to learn things. Wonderfully worked and clean. Good luck

I have been a Tool & Die maker for over 50 years but I want to commend you on your skill and ability to make such a fine project with so little. Your methods at times scare me as far as safety goes and your fingers as holding things with your hands can lead to the loss of fingers and I have seen eyes put out in machine shops I have worked in but still I have never seen so much made with so little. ' We used to have a saying when I worked at Arizona State University in the Physics Machine Shop for 20 years before I retired. "We the willing, lead by the unknowing, are doing the impossible for the ungrateful. We have done so much for so long with so little that we are now qualified to anything with nothing at all"! You personify that statement! You Rock my friend and I say Kudos to you. What a beautiful job you did with rudimentary tools. Your ingenuity is to be admired. It takes a person with knowledge of such devices (worm and worm wheel) to appreciate what you have done. The unknowing will just look at it and see nothing. Truly, beauty is in the eyes of the beholder. The knowing will see beauty in every step. The unknowing will just stare like a deer in a headlight. Take care and keep up the good work. Maximus has spoken.

I don't understand how there can be people who don't like this work of yours, it's GREAT, very professional, greetings from Punta Umbría-Huelva.

Beautiful work, brother. Well made!

Excellent job, after long time working I learned something completly new. Thanks

this looks amazing. I do wonder just how much strain those smaller threads can take on a single side like that If it can take a few thousand pounds without deforming the threads this would be an amazingly useful bit of kit to have.

It is so spectacular watching how you used the tap to make gear teeth. Amazing work and so satisfying to watch.

Great vid. How did you position the drive gear in the housing to obtain an accurate backlash on the worm?

Fantastic work mate! Looks really good, works well too. Best to have a nice tight press fit for bearings, if that's not possible then make it a sliding fit and use loctite bearing retainer (638/648) for bearing/shaft seals instead of jb-weld or generic epoxy. Also use tapered roller bearings instead of ball bearings for the bolt-drive if there's going to be high axial loads.

Hi ! The idea is good but...... The tool you used to create the teeth on the crown would have to be slightly different. As there is a height difference between the tooth head and the tooth foot, the tool would have to be modified so that the coupling between the screw and the crown was more precise. It may work, but it can't be too demanding on the system.

Very nice.! U know instead of jb weld like u use on ur bearings u can use medium/semi permanent or red/ permanent thread locker with thread locker u have the option to change the bearings if needed in future with a heat gun. That’s how I installed mine when I was building belt pulley ls for belt grinder and it works perfectly till this day and it’s been over a year now almost daily use.

Wow! - projekt jest genialny i zrobiony bardzo estetycznie, na pewno wypróbuję

Love the project for my little shop. Good job man.

I really like the way you cut the thread on the gear very ingenious. I really did not like the use of epoxy instead of press fit or even snap rings to retain the bearings. But yeah pretty cool. Impressive welding also

wow... extremly professional

Well, 'I learned something new. Thanks for the upload.

Great job! How to calculate diameter' gear, if you want a determined number of teeth? And how "pitch" first and last teeth in the first pass? Does it "automatically" match? Thanks.

how do you calculate the diameter in order to avoid a thread mismatch at the end of the work?

Question When that wheel comes around to the original place of starting, What's to say it will line up correctly to the original threads? I think you were lucky, unless you did some serious calculations

Great job very professional. Respect for you genius. 👏👏👏

I made one very similar. Only issue is once you add a load on the worm gear, the steel bolt will destroy the brass gear.

Amazing work. Thank you

Thanks for the video! It would be nice to know what made you take this approach! So clearly explained!

You’re making it look way too easy, I just wish it was for everyone, awesome!

Very cool. Love the shop.

Brilliant Mechanical Work 👌👌👌

Very nice! It should be said though that not all worm gears have a locked output gear. I currently have a 15:1 gear in front of me which is actually back-driveable. Just so no one builds a dangerous machine based on the information in the video.

You are a”REAL” boss, thanks.

Awesome work sir, keep up a good work sir, appreciating from the Philippines

Impressive work!

Wow dude! I'm very impressed with your ingenuity on this project. I do have one question for you if you don't mind. Why didn't you cut the bolt support bearing housing to a .001"/.002" press fit? The epoxy works too, and i love the finished product! 10 out of 10 in my book Brother.

Pretty fantastic work, dude! Nicely done! 😃 Looking forward to see where you're going to use it! Stay safe there with your family! 🖖😊

Thank you for not just blasting music during the video.

Professionals Always Professionals keep it up 👌👌✌✌👉👉👍👍🤝

Nice and interesting your presentation, but I have a question: when you first cut that gear using a M20 tap, how did you know the gear would have an integer number of teeth? That operation is usually made using a divider in order to get an integer number of teeth.

You do beautiful work. You're a freaking genius...

Beautiful job. You make it look so simple. I know it isn’t.

Excellent work

i hope I get to do something like that on a lathe at my university. Ive wanted to construct a heavy telescope mount for a long time but an essential part of those is a worm gear (since they spin at around one revolution per 23h 56m)

Very good idea. Thank you.

nicely done...good job

I like the vice on your drill press

Looks ideal for a homemade power cross feed for the milling machine.

Very interesting. How did you know how to make the threads on the gear "intersect" at the end? I assume it was a calculation, but how does that get made? I mean, you could take it around once, and it could obviously just start a new threading overlaid on the old one, messing up the point -- the thread had to **exactly** match into itself after one (and each subsequent) revolution of the work gear blank.... even a fraction of an inch of variance would have meant a less than accurate in-fit with each successive revolution, meaning slop... How did you determine what was done/needed?

Very impressive!

That is an elegant solution. I wonder if you could repeat this exorcise with an acme thread. 😁 Of course a thrust bearing might be of more use in this case.

świetna robota ładnie wyszło

Nice job. I have a Taiwanese Mill with a very touchy spindle quill drive, 5 deg turn of the handle is about 3th. I am at the moment making a worm wheel and worm gear for it so this video is inspiring. Thank you.

in order for the threads to meet properly at 360* how do you know what the driven gear diameter would be before cutting the worm gear teeth?

How did you manage to get the precision right so there were an integer number of teeth around gear? Since the diameter gets smaller as you cut the ridges deeper did you just keep going until the ridges met in the middle as an integer number, or was it sized specifically/another part of the design process that ensured your brass gear had clean and a flat number of teeth?

Fantastic project. Looks like you got the start and finish of the threads on the wheel to meet up perfectly. How did you do that?

was there a calculation for the diameter of the output wheel, to make sure that the threads lined up properly around the wheel, or was it eyeballed and you just got lucky? using a cutter and dremmel doesn;t seem the most accurate, so i guess it was eyeballed.

Very amazing work

Excellent engineering skills . A pleasure to view your detailed work . . Keep up the excellent work and content . Amazing quality work .

Great design nice thank you so much sir.

excelente, sin embargo el bronce debe ser al aluminio y la lubricación es en aceite, caso contrario se malogra. saludos

How did you determine the radius or diameter of the wheel to allow the tap to fit perfectly along the circumference?

Almost exactly how I made one. However since worm screws have a specific thread profile, I made the wheel hog out of one of two screws salvaged from some reducers. Mine was exactly 180:1 intentionally. I did use a dividing head to cut the 180 notches to get it started. Made a great 4th axis for a cnc router.

Świetna robota! Genialny i prosty sposób z gwintownikiem! Pozdrawiam!

Oooh, that's practical engineering!😀😀😀

This makes me want a mini lathe so bad!

Great workmanship!

Brilliant!

Shout out to the people including me who has no lathe🤣🤣🤣🤣

Sir after running long time the gears will be heated due to friction.So it should reduce friction using oil.

Great job, Great Video.

I´d so much loved to learn things like that. Metal working is a nice hobby.

I can't believe what great job you did ! You're just AWESOME

Brilliant 👏

Spectacular! Amazing! this will be the base for a lathe divider with Arduino and stepper motor. Compliments for your idea and your work

The gear ratio of the worm gear to the worm wheel cannot be a decimal number! In this case, the worm gear has to spin EXACTLY 110 times for the worm wheel to rotate once.

How did all the threads line up so perfectly? Don't you have to choose the diameter very precisly?

nice job My friend. So many men have been seriously injured by wearing gloves on a drilll press or lathe. It happens in a fraction of a second.

Looks cool as hell. I'm guessing you left it open because you didn't want to disassemble it for periodic cleaning and greasing?

How did you go about setting the lash between the worm and the gear?

иииии подача смазки в такой узел тугой струёй. Лайк, людям с руками всегда лайк

Great work, beautiful worm gear. When in actual use, it will need some grease.

Excellent!!!

Следует подшипники винта устанавливать с внутренней стороны обоймы подшипника. И на винту делать ограничители для устранения продольного хождения винта. Потому как при большой нагрузке на винт он будет выходить с посадочных мест под подшипник, и даже с самим подшипником. И у данной конструкции нет возможности регулирования резьбового зазора. Но как наглядное пособие для изготовления ходоуменьшителя сойдёт. 😂

El torno la maquina más completa sin dudas!

1 вопрос: зачем делать червячную передачу винт-гайка с использованием метрической резьбы вместо прямоугольной(ну или на крайняк трапецеидальной)?

I am impressed

No comment. Super work

Качество изготовления потрясающее. Мне кажется, что подшипники на приводном червяке должны быть упорными, либо, как минимум, должны иметь крышки. Иначе высокий крутящий момент вырвет болт вместе с подшипниками. Еще, наверное, надо бы масляную ванну предусмотреть для смазки шестерен

it's beautiful, I love it

You just added a tool to my kit bag. Thank you!!

Wow.. Spectacular job mate 👍❤️😁

That's so cool!!!

Most everything was well done. However, there is no way to adjust the backlash of the worm gear and worm wheel. It is very obvious that there is significant slope between them. This is detrimental to many applications. Being able to adjust that backlash is crucial to many applications of this technique. Also, it would be good to be able to predetermine what the exact ratio would be and how to determine the outside diameter of the two gears. Also required is the depth of the worm wheel recess. This is fine for crude things like lifting mechanisms and such but, not for when precision is reequired. Regardless, the video itself and the overall construction was well done.

Nice work! We posted this video on our homemade tools forum this week :)

Did you calculate the diameter for the worm face, or was it just luck that the teeth happened to mesh again after the full revolution?

did this about 15 years ago to make hobbed gears for 3d printing, no need to cut out the minor diameter, the tap will do it. only difference you did it with a 20mm tap, I used a 3mm tap