How to: Internal ACME Threading

[@madmodder123]

Great way to start the morning! I might have to thread some ACME stuff so this def helps

[@VanoverMachineAndRepair]

Good luck!

[@echoewest2685]

I like your channel, thanks for sharing!

[@VanoverMachineAndRepair]

Thank you

[@wyliemacbean1157]

Hello, yes I would like you to email me that threading sheet at the start of the video, that would be awesome. I found your channel a few weeks ago and subscribed and have been enjoying learning more and seeing your passion come to life each video. Fantastic job you are doing. Please keep doing what you do. Have a great day.

[@VanoverMachineAndRepair]

Send me an email and I’ll forward it over to you

[@parnuzutech]

Thank you, very useful information 👍

[@VanoverMachineAndRepair]

Glad it was helpful!

[@hilltopmachineworks2131]

Good info there Kyle. I spy a shaper too. 👍

[@VanoverMachineAndRepair]

Yeah true I’ll hopefully get to it 🤦‍♂️

[@rodneykiemele4721]

Great video, thank you .

[@VanoverMachineAndRepair]

Absolutely

[@robertkutz]

great info.😲😲👍👍

[@VanoverMachineAndRepair]

Thanks

[@col2lin]

Please tell me why my thinking is wrong. I have never done lathe work, just interested. When you make a thread - it goes clock wise (what thread do you call that?) from start to finish. Should you turn it around i.e. the end becomes the start, but you don't change the direction of the turne - doesn't that then become anty clock wise (making a left hand thread)? I get the right direction & left direction from stering say adding suger to tea, would that be same as making threads? You can see what you have done- made me think. Thank you.

[@VanoverMachineAndRepair]

Yeah, I could be kind of tricky to think about. Generally speaking when it’s a right hand thread, you feed towards the chuck when you’re cutting. At least on the outside of a part. If it’s a left-hand thread, generally your feeding away from the chuck. when you internal threading same concept applies but there is much more nuance. You can flip the bar or reverse the chuck direction to mess with the cutting direction. What I like to do is look at a screw on its side. think about a lathe lead screw if the screw seems to have the threads leaning to the left and it’s a right hand thread and vice versa.

[@VanoverMachineAndRepair]

Your logic seems to make sense on face value, but in reality, it doesn’t work that way because it’s not about the direction you feed into the nuts per se it’s all about the direction of the engagement of the threads.

[@wmweekendwarrior1166]

Good stuff

[@kailuagarage]

I have never used a lathe, but when you feed into the piece, and want to make a thread, say, 0.05" deep, vs making the piece 0.05" smaller in diameter do you have to remeber to divide that number in half for one or the other scenario when dialing it in?

[@VanoverMachineAndRepair]

If your not using a dro

[@kailuagarage]

@@VanoverMachineAndRepair so the DRO has a divide by two, or multiply by two mode?

[@JTL1313]

The short answer is “ it depends”. Some lathe dials measure in actual movement and this would be the actual depth of cut (DOC). If you make a movement of .50” on the dial you will remove .100” off the diameter. Some lathes have dials the compensate and the dials measure in diameter reduction. On these a .50” move of the dial only removes .05”. When cutting threads it is the DOC that matters so you need to know what type of measurement your dial is using. This only works when the DOC is tangent to the workpiece being turned. If more or less than 90 degrees you will need to use Trigonometry to calculate the actual movement or use direct measurement. Probably more info than you were looking for but you dropped in the quarter and pulled the arm.😊

[@kailuagarage]

@@JTL1313 Thanks - that makes sense. I just would typically see guys taking some amount off the diameter, and I was wondering if they were dividing the depth in half in their head and moving that much, or if the tool handled it.

[@VanoverMachineAndRepair]

@@kailuagarage yeah like the above commenter said depends on equipment. Most lathes have dros so you can set it to either. Meaning most guys are talking about taking off the diameter no matter what the revolutions on the dial are. The machines that don’t have a DRO you have to be more cognizant.

[@graham6137]

I would love a copy of your document! Ks there a way for me to email you?

[@VanoverMachineAndRepair]

What’s your email

[@VanoverMachineAndRepair]

Mine is [e-mail]

[@L98fiero]

OK, now do a 7/8 - 5 nut in aluminum bronze.

[@VanoverMachineAndRepair]

Yeah lol

[@captianmorgan7627]

4:10 Stupid quibble but it's not "thousands", it's "thousandths". Stupid, and it's written out right there, but it is the difference between 1,000 and 0.001.

[@VanoverMachineAndRepair]

👍