I made a precision gearbox - with NO GEARS.

If you want to build your own Cyloidal drive, let www.pcbway.com take care of the machining.
This was one heck of a project, but I made it in the end. A (nearly) zero-backlash 4th axis for my home made milling machine.
If you want to follow the projects a little closer, head over to / notanengineer .
‪@InheritanceMachining‬ had to build a bigger box of shame because of me, go watch that NOW: • Making a dovetail box....
Sources:
‪@HowToMechatronics‬ - What is Cycloidal Drive? Designing, 3D Printing and Testing • What is Cycloidal Driv...
‪@LeviJanssen‬ - Has a lot of great videos on cycloidal drives
‪@jamesbruton‬ - also has a lot of great videos on cycloidal drives
the best look inside a real cycloidal drive I could find: ‪@arduinoversusevil2025‬ (AvE) - BOLTR: SUMITOMO CYCLO GEARBOX | Zero Backlash! • BOLTR: SUMITOMO CYCLO ...
Cycloidal Drive Parametric Equations - blogs.solidwor...
Fusion Script I modified: capolight.word...
My modified version for drawing epitrochoids: pastebin.com/0...
‪@ROBRENZ‬'s large bore laps: • MAKING AND USING LARGE...
Solid toolpost mount inspired by ‪@StefanGotteswinter‬

[@InheritanceMachining]

I think I'm gonna need a bigger box

[@kylewellman402]

This was such an awesome gag to see. Reminds me of This Old Tony and Clickspring. One day i will start a channel in my own shop and hopefully get big enough to do a collaboration with IM.

[@gameboys248]

You will need bigger box, but he will need "crate of shame"

[@LykeaFactor]

The first time watching "not an engineer" made me subscribe to InheritanceMachining😂😂. Waiting for your video of this new element added to the box of shame.

[@sturmifan]

could be a fun side project building one tho

[@wrstew1272]

Definitely got my click 😂!

[@aq411]

This man ACTUALLY sent his first design to Inheritance Machining just for a 20-second gag.

[@NoEngineerHere]

The most expensive bit so far. Worth it.

[@somebodyelse6673]

Shows commitment. Respect.

[@kshepthedrummer]

​@@NoEngineerHerewell it gained you a view and a new subscriber (me) that wouldn't have seen you if it weren't for that small bit lol

[@Crazick]

@@kshepthedrummer+1

[@briandavis577]

Worth it!

[@scagmo_au]

The Inheritance Machining cameo was everything i never knew i needed ❤

[@feff232]

fr

[@MadcapPanic]

When I was watching the intro I was thinking "did I see Inheritance Machines box of shame or what the hell did I see?". Glad to be right. Lol'd when his cameo began.

[@AdamWarwicker]

Two my heroes in one video!

[@sheahawes6444]

@@MadcapPanic 15min mark roughly

[@timotheegoulet1511]

That was awesome

[@Rhyzomect]

As a swiss cnc machinist some of this kills my soul but you are very talented and intelligent.

[@NoEngineerHere]

It must be the Swiss in me. Working on getting that passport so I can come and see how it's really done.

[@joelsoncdma]

pure engineering

[@SteelDriving]

You should hear him yodel!

[@robster7787]

The PCBWay ad was legitimately useful. I absolutely did not know they do machined parts.

[@domcisme]

Gday mate sound engineer here. If you use the bigger desk based soldering irons with the spring holder you’ll get a much cleaner vocal recording.

[@kennethkeen1234]

"Gday"? Another wank boy too tired to write?

[@tenthplace]

I just use a modified crackhead lighter and a ice pick no wonder my audio is so bad

[@JacqueHarper]

I think that's a modified earthworks M50, isn't it? I would think that's pretty clean, but agree that it might be a bit sterile-sounding. Maybe the mod will allow for some added low-end warmth.

[@mattmanyam]

Hot mic!

[@JacqueHarper]

Does that one use 120V or 220V phantom power?

[@antonrnnedal7797]

The irony of a PcbWay ad including a complaint of a local machine shop going out of business is hilarious.

[@AndrossUT]

To be fair no amount of patronage saves these places going out of business because of landlord greed. Meat markets and machine shops are insanely profitable, which is why landlords target them so hard. This creates a positive feedback loop with regard to average rent.

[@NoEngineerHere]

@@AndrossUT In this particular case, the owners passed away and the children inherited the property. With all the gentrification going on around here, they tripled the rent and instead of a machine shop we'll have a pet barn.

[@AndrossUT]

@@NoEngineerHere thanks I hate it

[@DmitriyLaktyushkin]

@@AndrossUT Landlords aren't charities, they also don't target anything. There is the value of the land and if the other guys are willing to pay more why should the landlord settle for less. I'd like to see you refuse a pay raise before you start asking others to do the same.

[@AndrossUT]

@@DmitriyLaktyushkin landlords are leaches. They should get real jobs

[@maficstudios]

I felt the first mention of "side project" as a foreshadowing. I'm glad I wasn't disappointed. I can't believe the box of shame has something with a complete lack of chamfers.

[@NOLAfugee]

Made me think that one of them inspired the other, but being this is my first video from this channel, I can't figure it out yet.

[@maficstudios]

@@NOLAfugee IM has been going a bit over 2 years, and NTE is about 8 months old.

[@CiaCon]

I felt that one too. I was wondering. That was amazing!

[@BPSspace]

These projects are so impressive - absolutely love that the IM box of shame got used

[@NoEngineerHere]

Once I've got the 4th and 5th axis set up, I'd consider taking orders for rocket components 😉

[@PatrickKQ4HBD]

​@@NoEngineerHere I'm here for it! May your skies be blue, and your swarf never land between your toes.

[@robster7787]

Welp, now there are three cool channels that have made an appearance in this video, although I shouldn’t be surprised to see BPSspace watching this channel.

[@Dinnye01]

I wouldn't be surprised at this point if This Old Tony showed up. Btw, love your channel as well!

[@Werdna12345]

@@NoEngineerHerewould you say your CNC will be built different?

[@seanold]

This was my first of your videos. This was hilarious. The soldering iron microphone, the dryest humor. Love it

[@Dinnye01]

That reminds me of explosions and fire

[@joelsoncdma]

pure engineering

[@wouldiwasshookspeared4087]

Yeah, it took me a couple seconds to realize it wasn't a mic, legit double-take

[@SvBSheep]

great to see the box of shame has international parts now 😂

[@junkname9983]

I get it now. This channel is you building tools so you can build more tools. The tools aren't going to be doing anything more than upgrading themselves.

[@jochi8874]

Can't wait for this guy to kick off the singularity in his garage machine shop in an effort to create tools to make better tools

[@subhadityanath4326]

Bootstrapping!

[@Tritone_b5]

That Inheritance Machining bit got me, what a colab.

[@drummerfochrist]

Not everyone who graduates with an engineering degree SHOULD be considered an engineer. You know more than most about machining, and machine design as well. Really enjoyed your video.

[@0sense]

I never understand why I am attracted to engineering problems that I will never have.

[@starbomber]

I love how, when you started this project you were like "I'm not confident this thing can cut a circle." and then at 18:24 you evolved to "f@&k it, if it can cut one circle, it can cut *TWO* circles"

[@forgeperformanceand4x4]

That is the CNC machining way just send it

[@vincei4252]

That soldering mic might put your eye out, mate.

[@bluejayfabrications2216]

Only if you look at it funny

[@peterfitzpatrick7032]

I get the impression he doesn''t give two flux... 🙄😂 😎👍☘️🍺

[@itsfonk]

the Patreon plug in the overlaid subtitles during the [hispanic?] BGM was kinda spicy I liked it

[@NoEngineerHere]

💃

[@fenrir324]

@@NoEngineerHere what the name of the song ?

[@worksbydesign]

Incredible machining, and incredible animations! This was really entertaining story telling, combined with some nicely timed humor. I can't wait for more!

[@StephenTack]

You got Leeloo The Fith Element to help unbox your bandsaw. Respect.

[@GlennMartinPhotography]

Came here to say this!

[@frankwolstencroft8731]

Milla Jovovich played the part of Leeloo

[@StephenTack]

@@frankwolstencroft8731 blasphemy Milla Jovovich is played by Leeloo!

[@frankwolstencroft8731]

@@StephenTack Milla was born in Lviv, as was one of my daughters in law

[@blackdragonxtra]

23:05 Classic blunder! Never wear open toed shoes in a machine shop. They trap swarf like nobody's business. Always do your machining barefoot!

[@geobot9k]

Print toe caps for your chanclas. Worked for me.

[@enzochoi923]

barefoot is a bit too much protection for my tastes, I like my wang out and about near the spindle, lead screws, and thread feed when machining, which of course disallows the use of pants.

[@hairymcnipples]

Nude under a leather apron like "I did a thing" is the only way for an Aussie to do machining/fabrication imo (That one shot where he is dancing, barefoot and nude except for a leather apron, *on top of his lathe,* nearly gives me a heart attack)

[@garygenerous8982]

According to some Bangladeshi casting and machining videos I’ve seen, Safety Sandals are absolutely the best way to go while working with hot and sharp pieces of metal.

[@LittleGreyWolfForge]

i put my feet in a subway footlong

[@octane613]

It's like watching an Australian version of This Old Tony

[@scottcates]

Machinist Theatre at a high level.🤩

[@Entarra]

Bit too much of him in frame though, maybe he could learn to do things with only his feet

[@jdrains16]

Yeah nah, we saw his face.

[@jdrains16]

… aaand, I didn’t hear him say “Skookum” a single time..

[@quiettime6871]

Iss all Tiny

[@3-valdiondreemur564]

FINALLY SOMEONE WHO SPEAKS IN HUNDREDTHS OF A MILLIMETER INSTEAD OF MILLIONTHS OF A FOOTBALL FIELD Also at 22:10 dude knew exactly what he was saying I don't believe in his innocence.

[@yanikivanov]

Millimeters are way easier the thousand on a crapy inch....

[@phinox6052]

​@yanikivanov Why? They are just as precise as each other. It makes sense he uses metric because he is Australian if he was American or Liberian or even British then why wouldn't you use the measurement system that makes the most sense to you?

[@Drazard]

​@@phinox6052because fractions are fucking stupid when you are trying to be precise.

[@Justin-lc8wk]

@@Drazard womp womp. freedom system prevails.

[@Drazard]

@@Justin-lc8wk 95% of the world uses metric 😅

[@lancethrustworthy]

If your audio was bad, I wouldn't be watching. You've learned the important lesson of having good audio. Bravo.

[@Avram42]

That handheld microphone paying for itself.

[@joeaddison]

That side project / ad read was class

[@NoEngineerHere]

Very glad to hear 🙏

[@hamish7759]

That’s got to be the best pcb way ad ever

[@josephjones4293]

Jlcpcb tends to be cheaper… lol

[@vincei4252]

When I saw the bit about the box of shame, the parts being packed up and DHL I just about twigged before IM strolled into view. Definitely the right home for those parts. H'mm that gives me an idea ... I had parts jumping out the lathe spindle this weekend that I'm ashamed of ....

[@schwuzi]

IM might need a bigger box if all of us send him our failed pieces.

[@vincei4252]

@@schwuzi 😄

[@gregdrew874]

@@schwuzi I kinda like that guy, I'm not sending him my Ex.

[@somebodyelse6673]

Cue the IM subsidiary "Recycled Shame". Motto "Ship your shame to the other side of the planet, where something good might come of it. When the bin's full."

[@AllThingsMech]

Between the ridiculous [not] engineering that went into this, the soldering iron mic, and the fact that you sent your first attempt all the way to IM for the box of shame...I'm subbing. First rate all the way. Well done, man.

[@UyeGaming]

Not only am I impressed with your project, I'm super impressed by your video edits, story telling and sound design! Great video!

[@cwlogan13]

17:40. Good thing you had Leeloo to help you lift that new bandsaw.

[@Mardy72]

Multi pass

[@djgrazzy]

Plays halp

[@mattmanyam]

Chicken good.

[@lexugax]

Oh man, sending it to Inheritance Machining's box of shame was genius! Subscribed.

[@davidsiemers196]

The quality if your videos and everything you put out on your channel is legitimately insane. That doesn't even take into account the size and age of your channel, if you do take that into account, you're on a whole different level. Thank you for making awesome content, you rock!

[@Motgenror]

It is really, really hard to stop myself watching this video. I needed a break at 10:00 and struggled to avert the gaze until 24:00. I have finally done it and can make a cup of tea. What a content.

[@StevenDoe-is7km]

I really enjoy your sense of humor and talent.

[@bpark10001]

There is another type of cycloidal reduction box you can make that is easier to get backlash-free & easier to fabricate because all the critical machining is groove into planer disk surface. The engagement is axial, not radial. The "rollers" are ball bearings acting between 2 grooved disks. Because of the axial arrangement, backlash can be taken up to compensate for wear or fabrication. 2 facing disks have cycloidal track machined into them: one hypocycloidal, the other epicycloidal. Ball bearings roll between them, held under axial compression. 2 stacked assemblies are used to remove the orbital motion & the difference between the 2 ratios permits large ratios with low lobe counts. A central crank forces orbital motion (same as for drive you have).

[@Nedw]

Do you have a link or keywords to find out more about that design of cycloidal reduction box?

[@bpark10001]

@@Nedw Web search gets nothing (I tried "AXIAL cycloidal gearbox). The search latches on "cycloidal" & ignores "axial". I found about this in old optical catalog (for fine motion of optics without backlash). The benefit of this scheme is the ease of making if you have manual lathe & CNC milling machine. All of the "non-circular" elements are machined on a plane surface (simple cycloidal groove that ball bearings roll in). Calculating the CNC files is simple. It is the superposition of 2 circular motions: one is once around, & the other is multiple times around. One plate has path where the 2 rotations are the same direction (makes cycloid) & the other opposite rotations (makes hypocycloid). The (larger) radius of the once-around rotation & the (smaller) radius of the multiple-times around rotations are the same on the 2 mating surfaces. You need 3 plates (2 surfece-sets) total. The center plate is forced to orbit by eccentric. The ratio between plate 1 & plate 2 is different than that between 2 & 3 & in the opposite direction. For example, if ratio 1 is 15:1 & ratio 2 is 16:1 (reversed), the total ratio of 240:1. I do have CAD files of one I made experimentally. If you have place where I can send them, I offer them for you to look at.

[@RobCalhounPGH]

Ironically, when I saw the thumbnail, I thought it was using ball bearings instead of rollers.

[@SnakebitSTI]

I found a patent for an "axial cycloid reducer", then hit a dead end. I also came across magnetic cycloidal reducers, which are neat but have radial "engagement" not axial.

[@RCake]

As an engineer, I absolutely loved your time-warp effect ❤❤ ...and also your creative use of translated lyrics subtitles between 18:00 and 20:00 was just genius! First casually building confidence, then sneaking in the message 😂😂 Thank you for an absolutely wonderful video!

[@scottyno03]

As an engineer and a fellow countryman an hour up the F3, it’s so nice to hear the technical term ‘rooted’ in use on KZbin.

[@juancesaretti]

OK, so this has been recommended for a few days. Damn, KZbin does know me better than my mum. This is as good as it gets. You got a new subscriber.

[@halfnelsonchoke]

when someone has complete proficiency at both machining and commercial video writing & editing...the public wins.

[@EG4Honda]

A not-engineer sends the culmination of countless hours of work to an engineer. Engineer promptly stuffs said project into a box of shame. Despite the forewarning of the lathe crash, I still got a jolt of adrenaline when it hit. Love your work 👍

[@itarry4]

Mate the standard of your work for someone claiming to not be an engineer is nuts. You create some of the most precise things I've seen on KZbin from any channel that's not a company or Clickspring, another Aussie, (is it something you drink?) but the 2 of you work at virtually opposite sides of the scale. The Inheritance Machining gag was top notch another thing your channel brings to the machinist space, a bit of fun not taking something, you obviously do very seriously, to seriously something until now I had to rely on This old Tony for. Thank you

[@mrimmortal1579]

It’s gotta be the Vegemite…

[@itarry4]

@Turnipstalk so you don't watch inheritance Machining then? The bloke who runs that is exactly that an engineer who does top notch machinists work on his channel. Which a part of why the joke in this video. Oh and not sure why you felt the need to tell me this when my "for someone who claims to not be a engineer" is just a saying nothing more. I don't expect him to be both nor does it matter to the quality of his work.

[@itarry4]

@Turnipstalk sorry bro having a bad day at the time and reacted without really taking in your comment. Get so used to getting attacked on KZbin by people being, well people who can say what they want without consequences that it was basically automatic.

[@DeliciousDeBlair]

24:10 That is called an internal nut. Also, in some instances, it is called a 'gland' or 'gland nut' [mainly in hydraulic applications and maritime drive shaft applications, where some form of [usually lubricated] fluid seal and sliding, or rotating shaft is being held by the assembly.

[@dinguloid]

Hm I thought an internal nut was something else entirely . . .

[@renxula]

] 😅

[@sixdegreesofcrispybacon]

Though in Sydney "internal nut" is a sort of sexual misadventure that'll land you in St Vincent's for the weekend.

[@bravelyHomoSapien]

17:49 i appreciate your effort with including your lawn mower and LONG grass. Easily missed by your average punter but a true Easter egg😊

[@Rulusto]

As a CNC machinist, blue chips are actually a good thing, that means that the heat from the cut are transported away from the workpiece via the chips and the workpiece will not expand due to heat.

[@frankwolstencroft8731]

It might have been better to use a slower cutting speed or reduce the depth of cut on each pass.

[@StefanGotteswinter]

Thats an impressive build 🥸😃

[@Large_Sarge]

I don't have the money nor the intelligence to do the things you do. I've turned wrenches on and off for 25 years. I enjoy discovering how things work even if I don't completely understand the details. I get literally giddy with excitement when you release a new video. Keep them coming! ❤

[@fewwiggle]

Weird, I've never found the on/off switch on my wrenches . . . . :-)

[@alfonsito2652]

ahh yess the casual cameo of one of my favorite machinists is top tier, also that lathe crash made my soul jump

[@vejet]

I didn't understand a single one of the technical terms he used... yet here I am watching the video to the end. Also that man should be a voice actor.

[@ronbuckner8179]

I just watched inheritance machine and then came to him. The two are perfect for each other. I’ll now watch both.

[@RoysFineGems]

Around 1991 I was a young Elecromechanical Apprentis. I had been an Auto mechanic prior to working in the motor shop. I had a few worm gears, and several motors under my belt. My boss began freaking out, when he came in and saw 2 Cyclogears, completely dissassembled on my bench. Closest he ever came to screaming,, he yelled,, "We DON'T WORK ON CYCLOGEARS!! We Never have!" Not knowing,, I asked Why? Because you can't get them back together! Too complicated! He shouted! These were something in the 180 to 1. Ratio, multi stack. But low powered,, like 1.5hp used to extend/retract Gym Bleachers. He paced back and forth as I changed the bad bearings, and put them both back together. He calmed down, as we successfully test ran the first one. When he came back and saw the second one running fine, he said,, "Well I guess We work on Cyclogears."😊 dude you're good 👍! Cheers!

[@eve_ai_jiang6979]

Very cool :)

[@jjtb7300]

That lathe clip in the intro

[@NoEngineerHere]

It lives rent free in my head

[@jjtb7300]

@@NoEngineerHereI am a Machinist, and I accidentally selected a feed lever the wrong way once it was .6mm/rev where I wanted .3mm/rev it was going at 400rpm and the 50kg chunk of metal was on a bit of a angle and stalled the lathe instantly I thinking just how bad might of been if it was not a small part in a small lathe

[@notamouse5630]

Back when I decided to prove to myself that I still knew how to do CAD, I designed and 3d printed a cycloidal drive. I also designed and 3d printed a harmonic drive some months later. Good times.

[@DC_DC_DC_DC]

Dude you're getting into the realms of farmcraft101, TOT, old AvE and so on in my book. I get excited like a kid when you upload. Good jerb

[@ericzhill]

The soldering iron "mic" is a nice touch.

[@bartvanh]

I was subconsciously waiting for him to suck on it like a hookah

[@elpatosilva]

This is a final test, a true engineer would never ever think of doing a cycloidal reduction himself. Never, no chance.

[@Winkemaennchen]

If this is a commercial, it is the best and perfect i ever saw. Ranked #2 after "Die Mutter aller Imagefilme" (the mother of all imageclips).

[@50-50_Grind]

Impressed by the sound quality of that soldering iron.

[@MacroAggressor]

Dude! You're married to Leeloo from Fifth Element!? Sweet! (also, cool project. loved the IM gag)

[@paulunga]

So, I'm watching this man make a very complicated gearbox to remove backlash. But so far he hasn't mentioned why he NEEDS no backlash whatsoever. What application needs this design?

[@indivisibleat0m]

I can't think of one offhand for something at home, but I've run into them at work for speed compensation gearboxes in printing where any backlash results in huge changes in print or cut quality

[@iwannadrum1001]

For some axis movement on his CNC machine. Any backlash will take your milling tool out of center

[@frankwolstencroft8731]

He should send the finished product to Elon Musk to fit into his rocket engines to reduce vibration.

[@jamesross1003]

Man, I love your dry humor. Most will not get it unless they have ran into similar issues with projects. My muse is more along the lines of experimental electronic component builds(for example working on an experimental TEG that is entirely printable, it's very touchy. Junction points as small as 1 mil (mil as the measurement mil and not millimeters. Average human hair is 1 mil.) and up to 5 mil. Graphite, graphene, and conductive inks ranging from nickel to gold. Sensitive enough to use sun light to generate. I currently have to draw them out by hand for test models until I get the measurements within a working tolerance. Tedious does not even begin to describe it.), so even though I do not know many of the ins and outs of machining I certainly feel your pain. Keep it up, you are making great progress! Looking forward to further videos like this. You earned a subscriber.

[@colinkamoda9502]

I love the cinematography. It feels like a noir movie mixed with one moment in Ferris Bullers Day Off when he breaks the 4th wall.

[@nicholassdc]

I'd accuse you of having the same neurodivergent characteristics as me, but as your output is considerably greater than mine, I'm just going to sit here, quietly seething with jealousy. You've certainly earned another subscriber.

[@ewanfinlayson3520]

its nice to see someone tap holes with a hand tap and not just sticking it in an electric drill.

[@kevinsonkevin3634]

I beleive it is in fact a "but"

[@g-low6365]

i knew ive seen that wooden box before.... nice cameo. now we need some woodworker to make him a new (and definitely bigger) box of shame,

[@doorwayman]

"At the end of the day, all these problems come down to one root cause. I rushed the design and left a lot of the problem solving to future me. And now I was future me, and it sucked." AMEN BROTHER.

[@TheRiverHouseGetsVeryCold]

Like so many others, I didn’t know about PCBWays machining services. Best product placement I’ve seen in a LOOOOONG time.

[@travisray139]

17:44 Pro tip for unboxing large heavy things- 1. Flip box over so bottom is facing up. 2. Cut tape, and open up box. 3. Carefully roll opened box over so the bottom is facing down again. 4. Lift box off large heavy thing.

[@LenPopp]

Or, have a friend who says "WTF have you bought _now_??" and helps you anyway.

[@Daarispieter]

Speaking engineer to engineer: A cyclodal drive is not backlash free by definition, it relies on the accuracy of your production tolerances. In theory, the way the cyclodal drive works, you have a lot of points of contact at any given moment. Take in consideration production tolerances and the concept is heavily overdefined. This can only be made to work by having either compliance or a combination of certain production tolerances and a matching amount of clearance (play, thus backlash). This said, a cyclodal drive is a very interesting gear mechanism, offering very high reduction for the volume it consumes. The inherent low backlash is presumably due to having a high number of tolerance fields overlapping with their respective position errors, effectively lowering your effective clearance. Anyway, great engineering and machining, you are very talented!

[@Respectable_Username]

As somebody who's also not an engineer (at least, not of the realm where ctrl + z doesn't work), there was a lot of this I didn't understand, but still found entertaining. Great stuff!

[@mickmcgood6543]

I'm not a machining nerd but I was totally blown away that you could make such a thing in your shed at home. Amazing!

[@zalzalahbuttsaab]

It's so satisfying seeing you redo the same work over and over again so calmly and eventually get the right results.

[@chiphartley8699]

the panic really made me feel alive...best delivery ever just dead pan...

[@akshpatel3116]

As an engineer, I love seeing this ingenuity because being an engineer is way more than just a degree, but it's passion and frankly brain power😂, and we love to see that

[@hackmedia7755]

I was going to build a turbo encabulator but this cycloidal drive peaked my interest.

[@noelburns4674]

I relate this video immensely. This is what I would do with more time and money and no distractions of wife, kids, and responsibilities. LOVE IT. Thank you.

[@kevinburke6743]

To get you back you back for your boring bit crack. I watch a documentary last night on TV. It was about how the hulls of Super tankers are put together. It was riveting!

[@turbofan67]

I'm worried that I enjoyed this way too much. I even enjoyed the ad in the middle. Am I lost ?

[@charleskrumholt8541]

the time you spent making this video is appreciated

[@JasonM69]

Neat, this is how the final drives work on my excavator. Strong and easy to rebuild.

[@brunonikodemski2420]

Also, do NOT forget the harmonic drives, which are essentially the same thing, with an internal spline. We did these for all of the Apollo Moon landing LRV vehicles, for their wheel reduction (80-to-1). Those drives would still be useable if we could get some fresh batteries up to these LRVs. The internal gearing is still good to go, since it sits in a hydrated air cell. The outer part is lubricated by a Krytox metallic lube which will coat that gear set forever (since it evaporates over the surfaces). The Main problem would be the Parking Brake, which is a metal-to-metal interface, and is probably frozen together now in the hard vacuum. If a couple of Astronauts could go up there, with a manual Jack, and forcefully rotate one of the wheels, while the motor-controller was pushing it, they might be able to break these brakes loose, and these LRVs could be used again. The motor controller (aka DCE), has a current limiter to the motors, so cannot push more than a certain amount of torque. As such, manual assistance would probably be needed. PassItOn.

[@chrisalbertson5838]

This is why the first version should be 3D printed. You can see the entire assembly work and verify your ideas BEFORE you cut any metal.

[@HPRaceDevelopment]

the chips on the feet followed by the part being too long had me laughing so hard. So good.

[@davefellhoelter1343]

200 Hrs? "my butt!" I CALL BS! Ask the lady how much time? or refure to how much time, zero lady? GOOD JOB!! As a geek! I LOVE IT! As a cyclist and all motors lover, I see the RPM requirements for my spinning head. As a Millwright and all builder of mechanical and wave or electric energies? WOW I see the adjustability, or accuracy as ratioed, and possible mechanical forces in ratio for generation kinda like worm geears, or hydro back lash? "imagine?" "If you will?" a tapered rotational pin type deal with a swashplate type tunner?affecting the tappers? or slack? GOD! BLESS! Keep it alive!

[@TheBeaubiens]

Excellent work. You demonstrate the second rule of engineering: Patience, Perseverance and Persistence, as in, "Never, never, never give up." Which relates to Thomas Edison's statement "So many people have been so close to success, but not realizing it became frustrated and gave up." Everyone gets into a deep project and hits the proverbial wall, exclaiming "What the %$^# was I thinking?!" You're a better engineer than many I have worked with, simply because you have the right attitude. Keep up the good work, it is inspirational to the rest of us. And always remember the third law of engineering: "All the easy problems have already been solved by others, and the ones left are close to impossible!" -cheers

[@frankwolstencroft8731]

Those were Winston Churchill's words when he was invading Norway, Dieppe and Alamein and Sicily despite huge troop losses.

[@hardtailchop]

Arrived here from IM and have just hoovered up every minute of content you've so far put out. I've not done that amount of back-to-back KZbin onsessive watching within the same day since I discovered Bobby Fingers. You're killing it - and making me realise that I need to embrace the Dunning-Kruger effect a little more in my own workshop. Nice one. Charlotte

[@brianhaygood183]

I've believed for a while now that box would never be big enough to contain a reasonable amount of shame.

[@beargibson3100]

I've rebuilt a few of those cyclo drives at an old electric motor shop I worked at years ago. Love the video. a laugh around every cut scene.

[@guardingdark2860]

"I convinced myself that a plane bearing integrated directly into the covers and preloaded by the output pins was a viable solution" Me, who knows nothing about anything but is just happy to be here: "That sounds bad, I think"

[@ericthedesigner]

I was just drinking my 3rd pint, smoking some wings, and thought I really need a gearbox for my self made electric dirt bike. Came in from the bbg and this video is in my feed....

[@NoEngineerHere]

Hahaha, this is not the gearbox for you! It's only worth the trouble for situations where you need accurate positioning in both directions

[@kayakMike1000]

If you're meaningfully applying science to a particular problem, then you're engineering. That makes you an engineer.

[@gregory4414]

"If you like smooth operation, like the video". Couldn't be any smoother than a laminar flow.

[@xephael3485]

I think there's a market for these overbuilt magic wands...and bears in the woods.

[@machobunny1]

I deeply admire your dedication to perfection. SO much work. Well Done!!!

[@ImMacke3000]

Using a soldering iron as a microphone is in my opinion a comedy genius move

[@GenoWithNoS]

I like how the mic isn't even on the soldering iron, you're just holding it like one.

[@biffmalibu3733]

The content brought me here and the reaction to the cricket sealed the subscription. Anyone that has the same struggles I endure earns at least that level of respect. Great video.

[@NoEngineerHere]

they're still tormenting me. will they ever die?

[@biffmalibu3733]

@@NoEngineerHere Mine invited friends and mechanical gremlins too.

[@matthieuhenocque7824]

Oh boy, your videos are absolutely fantastic. The music, the tone, the subjects. I wish you the absolute best. Thank you very much.

[@realdenzity2144]

Love the example of the lathe spinning out and stopping from your tool. First time seeing someone else show that so people understand the difficulty of using these haha

[@997ET]

mixing in the rhythmic noise with the perfectly fitting soundtrack is genius.