Left Handed Vs Right Handed Thread Cutting

Рет қаралды 3,057

Күн бұрын

Пікірлер: 17

@cdrive5757 7 ай бұрын

A Thank you seems inadequate. I've yet to thread on my 1960's SB Heavy 10 because my power feed is down for repair. That said I've watched quite a few single point threading videos. I put star markers on your video when I saved it to my Threading Folder. Lee, you really did an exceptional job on this video. I believe you were spot on when you decided to do this video via overhead camera view! The most eye opening aspect of your video is it dispelled my belief that I had to run my spindle in reverse when cutting Left-Hand threads! I like to avoid reverse because of my threaded spindle nose,... unless I'm using the spindle's M-3 taper. Now I'm really anxious to get my power feed up and running! YOU INSPIRED ME! I'm coming up on my 78th birthday. The sensation of being Inspired is becoming a youthful memory. *Thank YOU!* Wakodahatchee Chris

@jamesreed6121 7 ай бұрын

Nice video, very good demo and explanations. I would suggest this video to anyone who wants to learn how to cut threads. Changing the subject a bit, Max Grant of Swan Valley Machine and Kurtis of Cutting Edge Engineering use a different method. They use the cross slide to set depth of cut with the compound set parallel to the z-axis. The compound is used together with the cross slide to cut the threads. Max explains it much better than I can, but as I understand it, if the cross slide is moved 0.005" the compound is moved 0.0025" or half the the movement of the cross slide. If you have the time and inclination check out Max's video on the subject. It seems that the Aussies do things differently than us Yanks. KOKO!

@simpleman283 6 ай бұрын

I have been watching Max for almost 4 years. I love his channel,but I still miss the chickens from the old shop.

@johnbarnwell400 7 ай бұрын

Thank you Pragmatic Lee ! I learned how to cut threads from your previous videos with my PM 1130 V lathe ….. Now I can thread left handed ! Very good tutorial video sir ! Much appreciated !

@AmateurRedneckWorkshop 7 ай бұрын

I think that threading is the most satisfying 0peration you can do with a lathe. Thanks for the video keep on keeping on.

@howder1951 7 ай бұрын

I have never tried LH threads with an insert tool. I believe the actual clearances are a bit different for LH, although in my experience a RH grind seemed to do the job well, as you just proved with this video. Well done, enjoyed the moment, cheers and thanks!

@billbaggins9961 7 ай бұрын

Nice job Lee, great breakdown and explanation. It relly helped me to understand left hand threading.

@terrycannon570 7 ай бұрын

Lee this is one of the best and most complete thread cutting tutorials I have seen yet. Even though I know how to single point thread I saved it to my, How To file on You Tube. Most of my threading is done with either a tap or a die but left hand male and female taps and dies are not only rare but expensive. Something that you could add to this video is to explain the reason why using the Compound and the tool bit needs to move at 29 degrees to the material and not just moving the cross slide in and out. I think it would be worthwhile information for the beginning lathe operator to understand. Personally, I would love to see the formula you mentioned as well.

@Stefan_Boerjesson 7 ай бұрын

Excellent handbook style presentation. Once needed to make a left hand M6, 0.5, 2" long screw and asked Joe Pie how to do with the 29.5 angle. "Plunch cut it, reverse rotation" Joe said, and it worked out perfectly and 3 screws were made. My question is how far plunch cutting could be used on a Mini lathe?

@rexmyers991 7 ай бұрын

Thanks, Mr. Lee.

@YinYangDPW 5 ай бұрын

I think that demo part you made is exactly what I need for my application, which is if the shaft is rotated in one direction, the two nuts come together towards the center, but if the shaft is rotated in the opposite direction, the two nuts spread apart from each other. Is this the case ? Seems it would be.

@lroyson 7 ай бұрын

Very well explained.

@Tom-ic7hw 7 ай бұрын

I still watch your bolthole dro vid before I do that out in the shop

@scottjones7279 7 ай бұрын

Great job

@paulcotesr5623 6 ай бұрын

all good information on threading . About that Machinist applets program what going on with that i message you on it but heard nothing yet ,willing to buy please let us know ty .