I had visions of you firing up a lathe to make the stud, but finding the right (get'r done) bolt is an acceptable substitute. Thanks for another great video.

That is what I have been waiting to see for a long time. Thanks Keith keep on keeping on.

So fortunate to have all the pieces! I have been watching for 20 years for the stuff for my big Cincinnati and have never seen any of it.

During my years doing machining I used dividing heads and rotary tables, but never a lead attachment. Looking forward to the next episode!!!

Fascinating! Been checking in every few days since the last Austin video to see if you were going to show how the helical gears were cut. This gear must be worth $50,000 by now!

Thanks Keith for showing us how to set up the horizontal mill for helical gear making.

I can't wait to see this contraption in action Keith.

Horizontal milling maching are my favorite machine tool because they are so versatile! Thanks Keith. Awesome

Oooh, finally, can't wait for the next part. During the video I was constantly thinking about the process and noticed that you also have to feed with the spindle at an angle and was wondering how that was done, but in that last shot I saw that the whole table of the machine can swing around. That's crazy, can you maybe show more of that in the next part please?

Glad to finally see this. I could not visualize what you were saying before, but it is getting clearer.

Thanks, I've been watching this for a bit, I retired some time ago, having had hands on such a machine since 2000. This takes me back a bit to a machine shop in Moorhead City I used to work at, doing boat shafts for the fishing boats out of there. We did a fair amount of shaper work as well, tapers on shafts, and in shaft couplings. I just love the old machines.

thanks for taking the time to show all the details of setting up, a lot of times the setup is more difficult and takes longer than the job itself!

I am fascinated by the mathematics of this to do the cut.

Seen a ton of machining videos.... Never seen anything like this before! Pretty excited to see it in action. Someone's CNC stuff aint got NOTHING on this.

I look forward to the happy hum from the attachment when the new stud is installed....

That is one heavy looking gear box. Nice having the lift table. I recently purchased a semi-universal indexing head. Considered the universal but didn't think I would ever use the table drive system & it was considerably more money. The one I bought is a knock off of the Brown & Sharp BS-1. 40 to 1 with three indexing plates. I have a set of Module 1.25 gear cutters on order. Have done a test run with a hand ground cutter, worked! I'm running on a 9x49 Jet mill. I will do all tooth counts to 300+ except for some prime #s. Wish me luck.

Kind of a mechanical Arduino add-on, I guess. Great fun. These machine videos are very enjoyable to watch.

Great stuff Keith. Leave a tiny amount of clearance between the gears in the attachment. You should be able to rotate the train freely by hand once all the nuts have been tightened up.

Gears! I have been eager for this project. Fascinating stuff. Thank you so much.

Can’t wait to see it cutting gears, thanks.

The gear selection table looks like a prime application for spreadsheet software.

I've been waiting for this video, and it was worth the wait.

Really interesting to see this set up, always wondered how it is done. Regarding the gear train, I was always taught to give each gear a couple of thou rattle clearance when setting the centre distances. Some people put a bit of rag or a couple of sheets of paper between the teeth as they tighten the banjo. Briefly ran some 1940's Lorenz gear shapers about 5 years ago, fascinating machines but incredibly complex.

Wow! That is quite a setup.

Been looking forward to seeing this. Thx for taking us along

A fascinating attachment - looking forward to seeing it in action.

Thanks for sharing.

I really like that cart you used to hold the Lead Attachment while getting it attached to the Milling Machine. I could use an adjustable height cart like that. Looking forward to the next video.

I've really been looking forward to it.

I remember the last time we had the low lead attachment out. I love seeing this thing and seeing it used.

nice!! liking the calculations required!

I have been looking forward to this...

Wow this video is the best I seen in books of the machine of all the attachments for the machine to make gears but never had the chance to use it all . I myself made a lot of gears in my times working . Your the best to watch love the old machine those are the one I work with in my times

Thank You !

I have been looking forward to this video, dude! Uggg, I have to wait for more, anticipation ain't fun.

I've been waiting for this video for 6 months

Great video

Thanks!, been waiting for this one :D

Very interesting. Thanks

Thank you for sharing. Enjoyed.👍👀

A lot to the setup, It appears that you have done this before. Can't imagine what this would be like for a novice to set up for the first time. Doable but would take some time and close attention to the details. I have a lot of respect for the engineers that put all these together. Thanks very much for sharing.

Great video Keith, keep'um coming..

Thanks Keith for the video. I bet the engineer that work on the change gear table worn out a slide rule on that one.

thank you friends, this video adds to my knowledge,

I'm gonna GO AHEAD and watch part 2

As always Mr Rucker top notch 👌 👍... you always do very good work??????

Part of my family used to be of Von Weiss gear I remember going through the shop and seeing all the different machines and all the different setups but I was way too young but for some reason I remember this and somebody setting up the same thing on a milling machine to do the same thing cut an angled gear interesting I'm truly enjoying this Keith thank you

Good stuff!

great , something interesting

A split die opened up and it might fit and then closed over. Depending on the split in the die. Glad you found a bolt - assume you made a stud or used as a bolt.

Nice !

Thanks again Keith..... Shoe🇺🇸

Good evening Georgia!👍

Thanks for tutoria❤

i like the way you still use old school maths keith to acheive your settings!

I've never seen how helical gears are or were cut manually - Looking forward to the next part, it appears to be a very interesting process - there's me thinking it was done by simply having the gear blank at an angle and cutting out the slots as usual, guided by the dividing head - but helical gears have a very slight curve cut in them so the teeth roll off each other - more noticeable on pinion and bevel gears in a differential drive.

Interesting project. You should probably think about making a few extra of these gears to justify the setup alone.

Hello Keith: It appears that you do not have the auxiliary shaft installed which drives the attachment for certain leads.... There is a drive gear underneath the table that attaches to a splined shaft that in turn attaches to the lead attachment.... Also, on the output of the lead attachment, notice three nuts with slots under them ... This gives a bit of movement to align the dividing head properly.....With the auxiliary shaft in place, the dividing head or a rotary table can be driven without movement of the table... Cheers from Louisiana; Mike

Is it fair to say--in very basic terms--that the lead attachment is pretty much nothing more than a variable gearbox? Obviously the machine has to have the power tap-off in place on which to mount it and also the particular dividing head itself must have the facility to be turned mechanically rather than by hand. Whatever the case it is an absolutely _fascinating_ little device!!! I don't know how you have managed to keep your hands off it all this time since you told us you had managed to pick one up! I would have been fiddling with it the moment it came into my workshop and my wife would be absolutely _sick_ of having to show interest for all the weird and wonderful variations of helical cogs I was churning out! All in the name of learning the ropes, obviously!!! Brilliant video Keith--I absolutely cannot wait until part 2 comes along! Will you show us the set-up of the automated dividing head in the same depth of detail please?

Think of the skill used to be designed and make these attachments for the lathes way back when.

Love the video Keith, as always. As an Austin Seven restorer I would say I would never, ever be sufficiently skilled to attempt this, even if I had the equipment. But...but... it's fairly easy to find replacements for this timing gear?!

I don’t know about that jam nut, but the stud looks like it’d be fairly easy to make a new one on a lathe by turning down and threading some bar stock. Extra little project for the channel. 😌

This is just a thought from me being typically lazy me (not so much lazy but just chronically pressed for time when wrenching my own machine's 😭) - I'd just leave the original stud on the attachment and run a die the next size down over the old threads, replace the old nut with the die & nut combo I had together in the shop at the same time and didn't have to leave to pick anything up hahaha. And that's because 93.6% of the time *my* luck dictates the f***in stud I'm trying to get out breaks off and now I'm messing with it longer 🤬

Keith - it'd be pretty easy to build a spreadsheet that calculated the gears you want for a particular lead. I'd be happy to do it if you want. Just send me the page with the formulas and a list of the change gears you have.

really cool stuff enjoy this so much more than a cnc and computer true craftsmanship. your channel really promotes machining skills thanks Keith.

The order of things installing the 4 gears will be tested on the sloppy mechanism on the mini lath. Thanks!

Keith, about that banjo stud; I am struck by how few of the threads on the stud are actually coming through the banjo far enough to be engaged by the nut. Less than half, it would appear from the damage. And also that the nut is relatively thin, and the stud short. I take it there is some sort of clearance issue. So the solution would seem to be a nut with an extended land, or in simple terms, an extension of the threaded bit sticking out. This should be cut to just fit the banjo body groove, and extend through to give the nut a longer threaded length. It is of course not as strong as a thicker nut, but it has the advantage of retaining the clearance needed. The damaged stud could actually be turned down, and re-cut with the next of thread. That would advantageously allow a thicker wall to the extended threaded portion. Then the nut has a good deal more Thread contact, without becoming any thicker in relation to the face of the banjo. Just a thought, I hope you find it helpful.

Instant like.

Stud puller 👍

Hi Keith, when setting up gears like that, I was told to make some paper strips and put them between the gears, to get a couple of thousandth space between the gears clearance. Then you tighten them into place. Just turn the gears to get the paper out. then they will turn freely without jamming. then give them some oil like you did.

Boss: "how in the H*** are we going to make this gear?" Engineer: "hold my beer...."

I wonder if Wolfram has these calculations in its library. It would be interesting to find out.

All I can think about is that nasty drive shaft bracket with the mangled ear ;) JK, Kieth. This is a fun project.

Waiting to see this.. Last post, btw

All ways a good day to watch some machine work. Even if it is just working on the machine. But I got a questions. when you were looking at the math involved for setting the right gears, you have some change gears on your book. My question is, The splines? area in side those gears, is there a name for that style of ingaugements, and how are they cut? Vertical Slotting or shaper?

I wonder if there is an online tool that will give you the closest gearing. I know that if I had a list of the gearings I could have a computer evaluate all of the combos to find the closest. This sort of thing should be a homework problem in math and computer science.

Hard to tell on video, but it looks like there was no backlash in that gear train, you really want a little, tight together will cause issues with the way the gears run and increase the wear on the system.

13:06 - A dab of red nail polish at the top of both covers will make it easier.

That looks like the gears on my SB lathe.

Hi kieth it's me the guy with car that needed that gear. Good news, I found a brand new one on ebay for $4.35 so I wont need you to make one. Cool setup tho 👍

Good Stuff! It looked like you missed the oil cup for the large shaft; or maybe you did it off camera?

Interested to know if you had to do an apprenticeship and who and where you did your time.

I would think that you would make a trial run on a scrap part , just to make sure you don't make an error in the setup.

Watching this from the UK, whenever I hear "I'll order that from McMaster", I'm left wondering if we have a UK equivalent?

Just imagine what that set up originally cost!

That's a lot of work to get that attachment configured.

I calculated all the permutations of four change gears for 13 to 200 teeth on each; if you want a copy of that text file let me know, I'll send you an e-mail.

I'd definitely make a setup part out of scrap or even plastic, so I can measure and compare what I made to the original. There's no shame in a setup part, right? :-D

I never throw old nuts and bolts away wheen I strip down stuff, there is always the nut or bolt I need in my box of bits

The change gears can be divided, The total must also be closed to gear ratio,is this simplified

Could that gear be made on gear hobber would it be. Faster ?

Is it possible to just buy the gear you need from McMaster or Grainger or somebody?

What happened to jimmy the rest is bandsaw? Are you ever going to finish it?

How are you going to time the gear teeth to the keyway? That is the basic timing of the engine.

Rube Goldberg Machine,

You didn't give those change gears any backlash, a couple pieces of paper between the gears when setting them gives a few thousandths of backlash.

@~17:30 Couldn't you just flip that stud end for end? Just 🤔

In which Keith screws up.

Everyone always asks "I wonder who designed this machine part?" Personally, I'd like to know who the poor guy was that had to try EACH and EVERY gear combination just to figure out the speeds for the manual. I can just imagine them spending hours and hours trying each one and marking it down. what a monotonous and tedious job.

Did you give up one the band saw, and the metal lathe ?? Haven't see any videos on your progress on them Ya really have to credit the guy that set down and put together all the combinations to make that thing work.🤓