Myford ML7 Lathe Gear Train Setup for thread cutting 

a year later a refresher course thanks again ade

Thank you for effort to video. I bought an old lathe equivalent Myford ml4. Included was a gear kit. No instruction nor any hint how to use them. I have found out that the gear kit and installation process is equivalent to ml7. So now I dare to adjust gears my own lathe. Big thanks for you! 😊😊😊😊

the best down to Earth explanation how the gears in the lathe work I'm no longer scared of setting it up myself. cheers!

Ade this is the best explanation of a changewheel set up for screw cutting I've ever heard. Thank you so much !!!

Oh my days, I’ve been looking for this video for ever, thank you RU-vid for finally pushing it into my recommended feed!

Echoing loads of other folk’s comments on this video but as a ML10 novice this was great information! Keep up the good work!

Excellent information and carefully explained for those learning to use the Myford. Thank you.

BRAVO AND THANK YOU from beautiful Greece !!

Thank you very much. Excellent explanation and demonstration of the various thread cutting setups. This video was/is invaluable help for me. Much appreciated.

This was incredibly helpful - so grateful that you've taken the time to put this together.

Very well explained 👍 Thank you for your time and effort.

This is just what I needed after being somewhat baffled by the manual. I am now confident that I can make changes to the "legacy" setup that came with my ML7. Thank you very much!

Brilliant! Just the vid I was looking for! Now driven and driver makes sense, I'll get cutting some threads! 👍🕺

Really pleased to find this video on YT, that’s really simplified understanding my ML7 gears for me. Thanks for the PDF, I’ve printed that off, and will Laminate that now to keep in the shop.

Brilliant, as no expert when using my ML7 but now fully understand how the gear trains work, thanks

thanks ade one of my youtube favourites

Very very useful video! A thank you from italy

Brilliant, so many things to think about when Screw Cutting! Very helpful

Hi Ade, A very useful and informative video and thank you for the link to the PDF. Many thanks. Regards Phil

Verry helpful indeed. I wish pI saw this before I first started the "gear puzzle" trying to figure out what is meant by driver and driven. This video would have saved me time and frustration.

Excellent and very clear demonstration, thanks.

I have just acquired a ML7. Thanks for making this tutorial video.Well made and very informative.

Terrific video thank you for the clear and concise explanation

Thank you, I now understand how to set up the lead screw gear train.

Absolutely brilliant, this has helped clear up no end of confusion in relation to the ML4 that's come into my possession and all the gears that came with it. I learnt on a Colchester Bantam with a gearbox and never had to think about all of this, thanks for the plain speaking and terminology which is great to have, the musical interludes were welcome too!

Thank very much for this video, I have a '48 ml7 purchased 12 months ago, now I am starting to learn how to use it, I shall be watching you from now on.

I always wondered how to do this, thanks

Very Clear and well explained may thanks

thanks ade just got a myford with a broken 60 tooth and seized studs ,i,ve fixed everything and your video has put me on the right track as i,m a newby

Thanks for sharing your knowledge, it is so helpful as I have an ML7

Helped my memory, thanks.

Thanks Ade, just got a ML4 and this sorted the gray areas. Top man.

Extremely helpful , thanks!

Excellent video Ade, thank you.

Excellent video, Thank you.

Brilliant, very informative, many thanks.

I've recently acquired a Super 7 lathe with a quick change gearbox. Although the gearbox saves all this gear-swapping, I found this series of threadcutting videos very informative and provided an ideal insight into the why's and wherefore's of the procedures involved. Great stuff - the videos make the manual a lot more understandable. Thankyou

Wow I wish I'd had access to this video months ago. It would have saved so much reading and so many questions. Excellent work Ade.

Great vid, cheers Ade.

Perfectly explained. Thank you.

Awesome video and well explained. Thanks for taking the time of making this. It was very useful for me.

Thanks for taking the time to do this, very helpful!

That was amazingly clear explanation Ade... Well done

Really clear, and very helpful - thank you!

Thanks for taking the time, really useful and instructive video.

Thank you Ade that was very useful as I've just bought an ML7 having just got rid of my Colchester Student with the gearbox

Thanks for the video, lve been trying to figure this out for ages. You made it look so easy.

Thank you very much Sir for the effort! It helps a lot of us!

Thank you for doing this video, found it extremely helpful. I have just got this Lathe

Thank you for taking the time to make this vid. It has cleared up a great amount of confusion. Excellent!

Hi Ade, Thank you for this. I have just purchased an ml10 with all the gears completely taken off so was very confused. With your explanation i can now understand what i need to do!!! Subscribed !!!! Chad. (Doobrey’s day)

smashing ade really good video

Very clearly explained and demonstrated , Thank you very much for posting.

great vid dude, thankyou so much as im looking to buy my first lathe soon. thanks dude

I recently bought my ml7 lathe and these videos have been very helpful. thank you very much.

Thank you for the excellent video. I was just about to attempt this job and you have saved me a lot of time.

Hi Ade came across your channel while looking to understand how to set up the powerfeed on my myford super 7. I have experience with using more modern lathes with built in gearboxes, I bought the myford to use at home but since owning the lathe I have asked on various forums for help using it. Hopefully with this new information I can achieve a smooth finish using my powerfeed as it currently appears to be setup for very fine thread cutting. Thanks for the detailed explination and helpful tip using the paper as a shim between gears. I will subscribe to your channel and look forward to watching your other videos, All the best Rob.

Good to see you messing about with gears, I will have ago at doing some thread cutting next time.👍

Very interesting and informative. I’ve just got my very fist lathe which is a ML7. So tutorials such as this are invaluable for total beginners like myself. Thanks for sharing. 👍

Thank you

I used to have to go through this procedure everytime I wanted to cut a different thread or change the feed rate, I found it to be very time consuming & the most useful modification I've made to my 1950 Ml7 was to fit an Electronic Leadscrew conversion.

really appreciate the info, just bought my first lathe (an ML7) yesterday and your videos are proving very helpful!

thank you very much for doing this video. I Have been dreading this since I got my lathe. And I could never have figured this out by my self.

Thank you!!! Before this video I could never figure this out from the manual. Now this is much clearer for me. Thanks for taking the time to do this.

Thanks very useful

Extremely useful, thanks.

Excellent, thank you!

excellent, about time somebody did a video that can be understood in plain English , excellent again

that was great thank you.

Brilliant, Ade! Just a bit of math explanation using the fact that an ML7 has an 8 TPI leadscrew, 'S' denotes the angular velocity of the spindle (1/s is the physical unit) and 'L' likewise for the leadscrew: 1) 11 TPI threading: At the axis of the 20/40T gear we have S. At the axis of the 60T gear we have 40/60*S and at the axis of the 55T gear we have L = 60/55*40/60*S = 8/11*S that is S = 11/8*L. So when the leadscrew has made 8 revolutions, the carriage has moved one inch and the spindle has made 11 revolutions - correct for a 11 TPI thread. 2) 64 TPI threading: Angular velocity of the axis with a 20/40T gear = 35/40*S. Velocity at the 30/60T axis: 20/60*35/40*S. Finally at the leadscrew (70T gear): L = 30/70*20/60*35/40*S = 1/2*1/2*1/2*S i.e. S = 8L. So when the leadscrew makes 8 revolutions the carriage moves one inch and the spindle will have made 8*8 = 64 revolutions - correct for a 64 TPI thread.

Excellent.

Fantastic explanation Thankyou

thanks ade well explained .I hate changeing gears for threading .You made it look easy thanks for sharing.PS my next lathe will have a quick change gear box (that would be nice) regards Shaun

Very well explained. Thank you. Does a quick change gearbox give as many thread choices?

thanks for pdf a great help

gracias bendiciones por compartir

Brilliant :-)

Thanks Ade. This video has been very helpful for me, trying to understand how my Myford gears works. Now i need to decide if want to buy all the gear wheels that i need. Just found out last week that my lathe is metric, the scale on the cross slide is from 0 to 40. Thing is, yesterday i bought a Colchester Student 6" squarehead at the price of 1300£. I want to give en ekstra thumbs up for your way of editing your videos. And with the music, it's like i'm waiting for Vera Lynn starting to sing...

Useful? way past useful! Thanks

Hi Are I have just discovered your videos and really helpful, I have just acquired a ML7R is there much difference would your videos apply to my lathe. Kind regards Stuart

Hi Ade Swash. Thank you for your guide I have acquired a Myford ML7 good little lathe. Have soon bought me all the different tools, but I can not make 13 threads per. Inc. What gear should I use there.

Ade, where have you been all my life. This is awesome. Where do you get one of those charts? When my Dad passed I inherited his Myford Super 7. I never learned how to change the gears to turn threads. This was a great video. Thank you for taking the time to make it.

Thank you for this! I would also like to set mine up so I can use the lead screw as a power feed, how do I do this?

Ade you are a Gem, I have a very nice ML7 sitting in my shop and with the help of your videos I will be able to actually get it working. Do you have a video that shows the gear set up for the best fine finish cut with the standard gears? I have now subscribed and will be watching all your videos over and over. I can hardly wait to get back to my shop and try some of the techniques you show. The best for me in this one was the use of paper to space the gears. I sure hope I haven' done any damage because of my lack of knowledge in that regard!

Can you or someone else do the same for the metric conversion? i have a S7 with a metric set and it is very confusing

ade,,, very informative.. i have a "little" ml10 ... but having said that .. none of the myfords are big ...! as far as i know..i got my ml10 from wales in the middle of no where,,,for £550...a sturdy lathe being a solid bed there is no twist in it whatsoever..i have realised that if you own a lathe and perhaps a mill the world is your oyster.. nothing is impossible !having a very fertile imagination i have thought of many additions to the basic lathe ,, putting them into practice is another story.. but i plod on ,,,in my own little world ... but ecstatically happy... ! and thats what is important in life what cog would i need to suit my lead screw ? 9tpi ... regards laurence

Hi i just got an ml7 . I will be using it more for turning rather than thread cutting. You touched on with the 90t 100t. Do these go straight on the end of the lead screw to get that slow feed? Im totally new to myford so sorry if this sounds silly. Cheers. Guy

Very very good video, could you possibly also show a few metric thread settings? Greetings Hungarian MyfordS7 owner. Thanks.

Very well explained , I printed out your Myford chart it is of no use to me Because as you now idlers must be the same size and my lathe is a big 20 inch swing and the spindle drive is 40 teeth so my chart I wish had and is not available would be totally different , I made 3/4" 16 TPI with 20 teeth on the stud and 80 on the lead screw and a 65 tooth idler in between Happy threading.

Hi hope you don’t mind me asking but gear combination do you need with the 100 tooth gear for using the lead screw to turn ?

Safety note - Chuck jaws will soon unwind & fly out when not gripped on a job or piece of scrap bar - especially on high RPM.

Ade sorry to be anal but the part you call the bango i think is called the quadrant.

Thank you