Making a Worm Gear on Bolt

Worm gears give very high gear ratios and thus torque. In this video I made a simple model using a bolt as a worm wheel.
/ maciej-nowak-962547184
/ mn.projects

[@AntonySimkin]

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!

[@TheGrtCornholi0]

Now my elevator may not go to the top floor all the time, but I have a sneaking suspicion you might have a little sarcasm in that tone of yours.

[@adityarane5735]

I doubt the strength of brass gear teeth. It wont be able to bear high torques. You will need high strength materials and also axial load bearings.

[@anelpasic5232]

@@adityarane5735 Most worm gears are made from either brass or bronze. You are underestimating the shear strength of those two materials.

[@corneilcorneil]

How do you calculate the diameter?

[@Hathorr1067]

@@adityarane5735 As Anel Pasic said, it's vary rare to find a wheel gear that isn't brass or bronze unless it's special purpose. That is your wear gear. Normally, the wheel gear is attached to another gear that leads into further gear reduction to handle even more torque if so desired.

[@davidlewis7382]

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

[@Hathorr1067]

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

[@jaakkopontinen]

Yeah it just happened to align :D

[@brenturk22]

@@jaakkopontinen ive been trying to figure out how he got it to align nicely too

[@jaakkopontinen]

Trial / error /luck. Or perhaps math (diameter vs pitch), but that would, of course, require veeery precise calibration and settings on the lathe.

[@higamerXD]

@@jaakkopontinen or, just dont show your fucked up bit of the gear on video that might also be the case. he made it out of brass anyways so its totally useless

[@Hathorr1067]

@@higamerXD Not really. It's common to have a bronze ring gear. One, it will protect the motor since it will strip first, and it's a stronger gear to make out of brass compared to the pinion worm gear. Bronze is actually quite strong. Plus, it will hold oil better compared to steel.

[@robertqueberg4612]

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

[@Gravy_Master]

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

[@pomojemu3235]

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

[@rodblomley8517]

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

[@humblehombre9904]

Beautiful work, brother. Well made!

[@aramroshani6197]

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

[@ElChokin]

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.

[@JohnCambanis]

Well done, master of machining! I would like to reply to some comments made about the accuracy of the cutting procedure. One calculates the Pitch Circle Diametre (PCD) of the threading tap to the size of gear one wants to cut also using the PCD to size the final dimension of the gear.

[@burdal8071]

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

[@heater101101]

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

[@7alfatech860]

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

[@Equismaximus]

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.

[@davidwillard7334]

Thank you ! MISTER MAUDESLAY !! / VAUCANSEN !!!

[@kennedy67951]

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

[@allanramgoolam8007]

You are a”REAL” boss, thanks.

[@fortoday04]

Very cool. Love the shop.

[@charliemacrae1045]

Amazing work. Thank you

[@DGA2000]

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

[@artstechnology7809]

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

[@akinnon2000]

wow... extremly professional

[@navid9852]

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

[@rosannaspeller9408]

Yes this was the coolest part! Very inspiring

[@trappenweisseguy27]

It’s called hobbing.

[@cdrive5757]

Impressive work!

[@MCsCreations]

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

[@utubefrog09]

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

[@venkatanarasimhamkadambari242]

Brilliant Mechanical Work 👌👌👌

[@catthecommentbothunter6890]

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

[@user-dj3qc8tw2k]

Можно попробовать на токарном по дереву

[@ALI-fj1xf]

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

[@christianeriksson4733]

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.

[@repalmore]

Very good idea. Thank you.

[@georgelee6857]

Excellent work

[@andrewfrost8866]

Very impressive!

[@ZoonCrypticon]

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

[@j.villacora9105]

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

[@pawelrafael25]

nicely done...good job

[@timtaylor8998]

Excellent!!!

[@802Garage]

Really cool. So many techniques in this video I wouldn't think of.

[@lukem280]

I like the vice on your drill press

[@vikassm]

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.

[@rogerdeane3608]

Depends on it's use. With JB weld you don't need a circlip or retainer cap, I use it often for this purpose especially if it is low speed low load..

[@bobturnbull18]

Tapered bearing thrust side only. Other side should be a ball bearing. If they are both tapered the off side bearing clearance will increase as the heat of operation expands the housing.

[@Inventive101]

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

[@miningcoinsbot]

I appreciate you brother give me a shout out please..I'll be waiting

[@daos3300]

'Today's technology no longer allows you to learn things.' what..?

[@Inventive101]

@@daos3300 For example in your video. At work, everything is done on cnc, we rarely do manual work

[@daos3300]

@@Inventive101 ah, you mean hand made things. fair enough but on the other hand, there is a lot to learn with cnc/software/3D printing and new materials tech. exciting times in a different way.

[@Inventive101]

@@daos3300 It's true, it's also a beautiful part of things. I'm a manual fan anyway

[@matinsakr6548]

No comment. Super work

[@jameswiz]

Thank you for not just blasting music during the video.

[@oleg9782]

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.

[@johnconnell8436]

That's so cool!!!

[@JTMakesIt]

Great workmanship!

[@Imwright720]

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

[@rogerdeane3608]

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.

[@smarzony]

it's beautiful, I love it

[@ElektroKwapi]

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

[@fava7753]

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

[@antonio.stefanelli]

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

[@TheChillSpanishGirl]

Oooh, that's practical engineering!😀😀😀

[@howardsmith1111]

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

[@SuperMechanic]

Very amazing work

[@Mrbooboo1972]

Great job, Great Video.

[@nathkrupa3463]

Great design nice thank you so much sir.

[@user-hp4rn9yl2d]

I am impressed

[@TechieTard]

This makes me want a mini lathe so bad!

[@jeerrrrrrryyyyy]

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.

[@siaaa69]

Beautiful

[@3073Sean]

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

[@mrohny76]

świetna robota ładnie wyszło

[@Reegareth]

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.

[@higamerXD]

well, he did take brass so realistically this is only a desk decor piece as the brass could never take any amount of real force

[@timkooper]

Won't take much over time.

[@TechieTard]

The guy most obviously knows what he's doing. I pretty sure he understands loads in respect to the application. I believe he made it more for the need of the ratio and not the output force seeing that's what he cited in text.

[@Yamahog]

@@TechieTard Myself, I would have used aluminum bronze , it's really tough. And for the bearing bosses..... I was kinda hoping he was using a digital readout on the X and Y axis' of the mill....... The back lash on the threads seems a bit excessive..... say 20 thou instead of maybe 3 or 4 thou.... meaning I would have used a fly-cutter to get the bosses dead-center for proper back-lash clearances..... but then, that's just me being a fuss-budget, lol.

[@hydorah]

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

[@starman2024]

Brilliant!

[@YooProjects]

Wow.. Spectacular job mate 👍❤️😁

[@vimp5594]

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

[@juanmanuelgreco7738]

El torno la maquina más completa sin dudas!

[@leebarnhart831]

Ya got a thumbs up from me my friend! 👍. Well done.

[@jorgefernandez-mv8hu]

Looks and works great!

[@self16]

Just great , thnx a lot

[@woodstyler]

a very nice idea

[@MGTOW-nn9ls]

Brilliant 👏

[@glennlopez6772]

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

[@2779mattie]

Your Improvising skills are on point 👍👍

[@RickEverett]

Better welds than I could do....Nice job!

[@harimadhavan1712]

Great work as usual Maciej 😎👍

[@boukhlikm]

great job sir a big greeting from casablanca "morocco"

[@fachannelmechanical3031]

I love it. this is so informatif

[@TheChillieboo]

Gold!

[@MechanicAvenue]

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

[@babuhegade8020]

Super work I like it

[@PremKM6]

very good idea...............

[@tiborraso5229]

Fantastic idea.💡💡💡 Super job!👍👍👍

[@davesstuff1599]

Beautiful work.

[@2779mattie]

So satisfying excellent work from the USA California

[@user-kw5yg3rl1c]

Красота и только!

[@cndbrn7975]

Very cool ..

[@homemadetools]

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

[@hyqhyp]

Superb.

[@seanc8061]

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.

[@CMAenergy]

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

[@poipoi300]

I'm not a machinist but I assume you could get your tap TPI, multiply it by a certain factor and that's your disc circumference

[@Bianchi77]

Nice video, thanks :)

[@dmitrys6201]

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

[@stevepuyear2738]

Yes absolutely genius as others have said. I can think of many many uses for something like that. I don't have the equipment to build things like that but I know some machinists who could.

[@robrussell5911]

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

[@davidcarter2368]

Indeed. Edit - Speed rate change would be as easy as four bolts.

[@robrussell5911]

@@davidcarter2368 yes, good point.

[@tyrellst.hilaire4653]

Me: I wonder what kind of $3000 tool he will use to make those threads. Him: hand tap Me: .....ITS SO BEAUTIFUL

[@peterweller8583]

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.

[@riccardoa.ballerini7989]

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

[@therestorationshop]

taps are a certain number of threads per inch or millimeter. As such you calculate the diameter such that the circumference is evenly divisible by the threads per inch/mm of your tap.

[@marutikantikar4324]

@@therestorationshop right

[@seditt5146]

Pie is good, very tasty, everyone loves pie.... you guys like pie? Apple pie... cherry pie... shoe fly pie... mmmmmm mmmmmm love me some PI !

[@dhanushembekar3751]

Good question and best answer too.