Kearney & Trecker Low Lead Attachment Drive Shaft - Cutting Splines

Cutting splines for a drive shaft that fits my Kearney & Trecker Model H Low Lead Attachment. This attachment will be used to cut spiral gears once I get it all set up. I cut the splines using the dividing head on my horizontal mill.
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[@millomweb]

VERY satisfying being able to hit 'size' in the first pass. I don't think this whole operation could have been done any better.

[@PatrickSmith-kd3fs]

Nice one mate

[@geneard639]

Unless this is a 4th grade math test, that is NOT 'cheating'. Its working in a highly efficient manner and you did show your work. A+

[@leeroyholloway4277]

I usually count the steps out loud even when no one is watching. Hearing it said in the room helps confirm that I'm correct and not leaving something out.

[@WhatAboutTheBee]

That's good work practice. Its easy to anticipate a step mentally but count it as an actual step otherwise.

[@OldSneelock]

@@WhatAboutTheBee On anything over 5 steps I suggest making a quick sketch, write down the steps, and check them off as they are done. Easy to miss a chamfer and make a lot of hand work. 😁😎

[@leeroyholloway4277]

@Current Batches I verbalize my pre-flight and start up (hand prop) routine. I guess it carries over to my shop work.

[@kevinreardon2558]

That was cool. Bringing a tool designated as metal scrap back to life. Thanks!

[@jeremybaker8626]

I don’t comment a lot but I do watch your channel a lot. Great content Keith please keep it coming!

[@comictrio]

Good job. It's good to see someone using a dividing head again.

[@1ttanker]

Can hardly wait to see this fully assembled and running Keith. I am a layman and have enjoyed the machine shop ever since I was in school getting my welding and thereafter my certification and the few times I in doing side projects did some resurfacing of fly wheels for some racecars, another old passion I had in my younger years.

[@bcbloc02]

Nicely done, you had the machine for the job and fortunately the tooling too!

[@ErikBongers]

About those "6 turns and 22 holes". The dividing head needs 40 full handle rotations to get a full circle (40:1 reduction). With the 33 hole dividing plate, each rotation can be further divided by 33. A full circle is thus 40 * 33 = 1452 holes. We need to divide that full circle into 6 equal parts: 1452/6 = 220 holes for a sixth of a circle. The dividing plate has 33 holes, so to move 220 holes, we need 6 full rotations (=33*6) plus 22 holes to get our 220 holes.

[@leeklemetti1887]

Thanks for the math.

[@larrylawson5172]

I don't want to troll. So I need a little help with the math. 40 x 33 is 1320 holes on my calculator. A zero in one of the ones place (40) forces a zero in the answer for the ones place. Or 3 x 40 is 120. 30 x 40 is 1200. 120 + 1200 = 1320. 1320 divided by 6 does equal 220. 220 divided by 33 does equal 6 revolutions plus a remainder of 22 holes on a 33 hole plate. I really don't want to troll but for students or beginners it is important to get the math correct. It looks like you did something like 12*120=1440 plus 12 = 1452. I sometimes leave numbers in a calculator and get odd numbers or I just get fat fingers that independently punch numbers that I did not think I punched. And that is OK. It happens to all of us.

[@toan0158]

)

[@bud-in-pa589]

A short cut is to recognize that you want 6 splines in the full circle. Therefore divide 40 by 6 ( 40/6 = 6-4/6 or 6-2/3 ) or 6 full turns plus 2/3rds of the 33 hole dividing plate. 2/3rds of 33 holes is 22 holes. Therefore for a 33 hole dividing plate you would turn it 6 turns plus 22 holes. If you don't have a 33 hole dividing plate see if you have one with the number of holes divisible by 3, say a plate with 27 holes. Then using the same thought process 2/3rds of 27 is 18 so using a 27 hole plate you would get the same result by going 6 turns and 18 holes.

[@LtBRS]

What a pleasure to see that there are still men and machines that can still do this. Thanks!

[@c00lamah]

Just plain poetry in motion, skilled engineering at it's best. Thank you.

[@matthewperlman3356]

This one was very helpful to me as I'm currently renovating my Cincinnati I recently bought. The double cutter setup to simplify the correct wall angle of the splines was of particular interest. thanks for showing this, and all your other projects as well.

[@avoirdupois1]

I always wanted to know how splines like that were cut. Great work! Super satisfying to see that slip fit first try.

[@MattysWorkshop]

Gday Kieth, throughly throughly enjoyed and learnt a lot as always, always like the way you explain the method of operations in a way that it’s easy to understand, thanks Kieth, Cheers Matty

[@WreckDiver99]

It isn't cheating if it works, saves time, and gives the same result. Great work!

[@mabmachine]

I think the most cleaver setup was moving the spacer behind the cutter, I don't think I would have thought of that. One of my favorite jobs I've done in my shop was cutting a splined shaft for a drill press. Looking forward to some gear cutting. I've been on the lookout for 2H low lead parts for some time. So far all I have is an incomplete gear box.

[@emy1111]

hope you took a holiday after that operation, you deserve it.

[@johnquinn3899]

Great information on how the splines are cut. Thanks Keith

[@TheMoulie]

I love watching your stuff. So informative (I am not a machinist, the closest I get is scratch building for model kits being a physics teacher) but today was one of the best. Your speeded up counting, sounding like a hamster on helium, just cracked me up! Keep up the amazing work!

[@joeromanak8797]

Those were cool operations and I enjoyed watching. You machinists have a really large bag of tricks to draw from. You also have the machines and tooling, which are strikes 2 and 3 for me. But I’ll keep watching. When I hit the lottery, I’ll build a big hobby shop and make chips just for fun. 😎👍

[@phillipyannone3195]

Very good Kieth, excellent job. Having that nice inventory of cutters pays off.

[@geraldharvill4699]

Keith, your video started me wanting to know how and what the K&T low lead attachment could be used. I check other videos about the subject, but most just had videos with out and audio explaining how it does the work. I find your video a lot more instructional that any other places. Great Job Keith.

[@geckoproductions4128]

Berry Klebber GI! Clever technique indeed. I'm not clever enough to come up with them on a blank piece of paper, but I AM clever enough to recognize and appreciate it when I seen it. Well done.

[@bilyfreeland7622]

keith, i really enjoy watching very skilled hands at work, truly a gift from god that you have!

[@williamsquires3070]

Keith, it’s not “cheating”, it’s “thinking outside the (tool)box”! 😎

[@stevestrohacker8436]

Being efficient if you ask me.

[@rogerdeane3608]

All you need to know about gear cutting 5T-M2 Let This Be A Lesson To Ya! This old Tony has a good video on gear cutting, all you need to know

[@samrodian919]

A nicely finished job Keith. I was quite surprised at the amount of runout.in the arbor resulting in only one tooth on each cutter actually doing the complete work. As you can clearly see that the swarf ( chips ) is (are ) only coming off of one tooth sorry I'm English and we call chips swarf over here lol Keith you said those cutters were a matched pair, and I expected the key slot to line up exactly on both cutters, but the teeth were slightly staggered. I thought if they were staggered by design then they would be set exactly half way between if you understand what I mean. Your comments would be interesting on this subject Keith.

[@MartsGarage]

Excellent job, Keith and the setup was ideal. Most of my work revolves around early Fords and they use a 6 spline coupling, so this might prove very useful for me. Thanks. Mart in the UK.

[@janhoogesteger4789]

Brilliant thanks I need to make a 6 spline one inch main shaft for a Velocette m.cycle engine. Luckily you have confirmed my tentative ideason how to best accomplish this, I have an Adcock ,& Shipley 1ES horizontal mill,(badged as Bridgeport) and a zeitze dividing head.... Your use of the original shaft to set up is brilliant, I was not looking forward to centering with a metric machine and Imperial spline dimensions... Best Regards Jan Hoogesteger

[@bearbon2]

Learned a great tip here. This is something I can do now. Thanks Keith

[@davidrichards5594]

I certainly learned something on this one, excellent video Keith.....Dave

[@TheKnacklersWorkshop]

Hello Keith, It was very interesting seeing the two cutters... You made this look very easy... Take care Paul,,

[@donaldsherman7905]

Nicely done, Kieth. I can’t wait to see the spiral cuts.

[@one4stevo]

Nice i was puzzled how you were going to cut them splines at the start. Amazing great job

[@ianbutler1983]

I am always puzzled by how he is going to do things, then he he makes me makes it look so simple.

[@darindougherty9341]

Can't wait to see some helical gears cut. I have all kinds of questions on how you set that up. Will just wait to see it before I waste anyone's time explaining it.

[@alangknowles]

Cannot wait to get it all working again.

[@NeverlostatBSgaming]

Your videos are like ASMR mixed with educational and informative; and personally I think that’s a great combo

[@BKD70]

Living vicariously through your channel again Keith! Awesome video.

[@csnelling4]

That’s not cheating it’s using your noggin 😉great job, the more I see you working the more I wish I’d been a turner Keith .

[@argee55]

No cheating. Just found another way to do it. Another excellent video.

[@wrstew1272]

Always wondered about how that procedure was done. Easy but complicated.

[@1903A3shooter]

LEARN something new every day.

[@barryfields2964]

This old Tony did one of those a while back on a vertical mill. That’s how he had to do it, with three cuts. It seemed to be a lot more work.

[@clayz1]

Nice work Keith. Now I want to see what you do with that attachment, because I have no clue. Unless it is like a scroll gear or something (think scroll plate on a 3 jaw chuck) and in 40 years of machining Ive never seen that process done.

[@farmalltomf]

Good stuff Keith. When this is complete, you will be proud............and you should be. Well played!

[@jankjensen222]

Beautiful work Keith!! Loved this video!! Can't wait for the spiral gear cuts ;-) Happy new year from Denmark!

[@Ideasite]

I'm looking for an arbor support for a 1943 Cincinnati No 2 Horizontal mill. It has a 50 taper spindle for the horizontal and I have a high speed vertical milling attachment with a 40 taper spindle. Machine works beautifully and I'd love to be able to add the horizontal capability with an arbor support. 50 taper arbors seem to be fairly easy to find but the arbor support is either the wrong size or outrageously priced. I might need to find a chunk of cast iron and make one. It's also almost impossible to find a 40 taper stub arbor for gear cutters. The world seems full of R8 stub arbors for this purpose, but Cat40, BT40, MNTB40 stub arbors are as rare as hens teeth. I wonder why. Great video as always! Thanks, Keith!

[@humancattoy7767]

It's not called cheating, it's called expediency. You saved time and the possibility(however small) of a miscalculation.

[@kensherwin4544]

At 5:42 NOOOOOO!! "I'll put this cutter back in the cabinet." Everybody knows that you're supposed to "put it in a safe place where I can find it the next time". On second thought, you're probably doing it right based on my frequent failures at finding things in that safe place.

[@leeklemetti1887]

In my experience, there is "no safe place" that can be found again! Forever lost.

[@TheMrkylester101]

Thats why its called a safe place

[@ron827]

Very satisfying to the machinist when the results are EXACTLY as planned.

[@ghl3488]

Very skillful Keith, very enjoyable to watch and to do I'm sure. Starting my mill and lathe build today, finally got some lifting equipment in. Thanks again for the video. Regards Gareth

[@MitchEllis-e4y]

Lubing your cut area. Take care of you tools and they will take care of themselves and you

[@aussienebula8331]

Great job Keith. Explanation of the project was informative. Thanx for sharing.

[@MichaelBarney58]

I learned a lot today. Very enjoyable video! Thanks Keith!

[@GenericAnimeBoy]

Reminds me of ToT's PTO spline video, except you did it in 6 fewer passes by using the 2-cutter setup.

[@johnnyholland8765]

Ain't it good when a plan comes together and it FITS!!

[@haroldbell1097]

great piece of engineering, 'every day is a learning day'. Harold from the UK

[@MaturePatriot]

I really need a dividing head and rotary table. Some nice work there. Gang milling was the way to go. 19:05 PERFECT! 22:36 Looks great!! That big combination wrench reminded me of a story. I bought two large combination wrenches while my grandson was with me and a new trailer hitch ball. On the way home he asked why I needed such big wrenches, without thinking I said to tighten my balls....the boy laughed for ten minutes.

[@machineshopatthebottomofth3213]

Great job Keith. I think you were surprised you did not need to go a second time around!

[@Stefan_Boerjesson]

Thanks for yet one more entertaining video. Entertaining because I only have a mini populated shop... That's how to cut outer splines. After the first cut setup, using double cutters, You drop one cutter, shift the remaining cutter and the washer and finish that end of the shaft. Brilliant! But!!! Why not start the cut of the second end using that single cutter setup, and later swap to the 2-cutter setup? That would have saved You one change.

[@maxandsherrywike2984]

Awesome job with a great fit !!!!!!

[@djdelorie]

at 18:39 it looks like the cutter is off-center and in fact cutting into the side of the spline. At 18:43 you can see that it's cut into the spline If so, there may be problems driving the shaft in that direction. Should be inspected by adding the gear and viewing end-on. If that face no longer mates, the part may need to be re-made.

[@ralphnorman4636]

Thanks love watching and learning

[@SciPunk215]

Very satisfying.

[@cameronlilly4814]

Beautiful work. 'Watching this to learn how to use my ww1 b&s no.3

[@318SixPack]

Groovy!

[@jab0400150]

I was hoping that you would show us how the "Turbo Encabulator" would be used in this spline setup, while using the "Coefficient of Linear Expansion". Nice job Keith!!!!!!

[@WireWeHere]

A six of one, half dozen of the other splines, there's a yoke in there somewhere.

[@Designments]

Loved this one! Such a great project.

[@steverobb5360]

Thanks, great video. That's a wonderful machine. Two thumbs up.

[@phillipjones3342]

Enjoyed this one Keith well done thanks for sharing

[@markbarlow4918]

Two quick questions..... 1. Could you have saved a tool change by hogging out the single cut first? 2. Are the slides on both ends clocked inline? If so what was your procedure for doing so? Awesome video again, thanks for the hard work!

[@Bartolobot]

Keith great videos. I think I heard you say septor, but I'm sure you know it's called sector arm, FYI just in case. I know I wish someone had told me sooner when I find out I've been mispronouncing something for a long time.

[@MitchEllis-e4y]

I wonder if my body and nervous system have held out to let me be a machinist instead of a Senior Technical Engineer in electronics, Mechanical and Instrumentation & Controls. I love watching and would love learning machining.

[@catfishgray3696]

GREAT JOB, GREAT VIDEO...

[@homeryoung7436]

Good morning Keith

[@bones357]

7:36 You're not cheating, you're beating!👊👍

[@RogersFixItBarn]

Happy New year Keith I love your channel. I learn something new on each video.

[@Pnrc-b2u]

That was awesome. Pete from across the pond

[@jerrycoleman2610]

Keith, Awesome video really enjoyed watching, great content & Thanks for sharing your video.!.!.!.

[@wrstew1272]

7:45. Not cheating, just using your noggin to insure correct set up. Smart! Why reinvent the wheel when you have a master gauge for alignment. Go / No Go eh? Factory support 101. Experienced chip cutter at work. The number of operations for each setup is valuable to oversee in use.

[@MrPatdeeee]

Awesome. Thank you Keith.

[@mathewmolk2089]

ADonly mind telling you my heart was in my throat when you were trying the gear for the first time, - Dead Nuts. ,,, You are getting as good as the guys that worked for years at Warner and Swasey!,,,,, One shot, one kill.

[@TheAyrCaveShop]

Enjoyed Keith, Haven't seen it done like that..thanks for sharing

[@WilliamTMusil]

Hiya Keith

[@ericmcrae7758]

Nice set up Keith to speed it up I would have cut the centers first on the second side which would have saved a set up of the cutters, I am not a machinist so maybe thats not a good way to do it. When I was an apprentice the macine shop used to fascinate me but I never got to use a lathe. Hi from the UK.

[@carlwhite8225]

Very Nice, I learned something today, Thanks.

[@MitchEllis-e4y]

I too would have used the original bar for the setup

[@paulmace7910]

Horizontals rock!

[@elmarqo_3448]

When you were setting up the 2 cutter set you sounded like you were having a good time.

[@bud-in-pa589]

Keith...You mentioned that to do this spline on a vertical mill would require that you do offsets and more passes. Why couldn't you set up the same double cutter arrangement on the vertical mill like you did for the HBM and then finish with a single cutter to cleanup the middle of the spline, i.e do it just like you did on the horizontal mill except you are just doing it vertically now?

[@mickdog2]

looks like a PTO shaft. I always wondered how they made those

[@bigalhudson]

Excellent tip re moving the cutter over with the spacer. 👍 How’s Abom getting on re machining out the bottom of the stoker engine ?

[@norfolkhall]

Unfortunately the 1/4 inch spacer offsets the cutting tool to the center line of the work piece look at 17:46. Keith should have used a 7/32 inch spacer not the 1/4 inch spacer to centralise the cutter. He got away with it though.

[@millomweb]

It'd be interesting to know how many cutters there are in that set of 'identical' cutters. Maybe 8, 9 or 10 - but what makes it a 'set' is if you look at 10:45 you can see that the key slot is not in the same position on each cutter - I was expecting that - so that each cutter starts its cut at fractionally different time - so despite each cutter being straight cut, the effect of the two being slightly out of phase is the equivalent of a longer helical cutter.

[@billmorris2613]

Good morning from St John Parish, Louisiana 8 Jan 21.

[@brucetuckey7909]

Interesting set up. I will try on the next splining job.

[@camerashy44]

Impressive!

[@kurtdietrich5421]

Great job. Very cool 😎

[@geraldharvill4699]

Always was taught work smarter not harder. The brain is the best tool you have. So any short cut is better, as long as ut still does the correct job.

[@tropifiori]

Very nice. I would never have figured that out on my own.

[@StreuB1]

Very cool!!! Thanks, Keith!