BobMachines
Plastic
- Joined
- Jun 7, 2021
Hello . First time using this forum. I am having chatter problems with acme threading on a puma 300. I am using g76 threading code, and material is 360 brass sometimes also 17-4, 410. I am having problems with chatter in threads. I am using s"plit bushings, and carmex tools. Anything above 3" long threads give me trouble. Has anyone had success with anti vibration bars for threading these deep acme threads. Generally it is from 6tpi to 3tpi, and sometimes I have to do dual lead. I know I need the right helical angle, and is even more important with dual leads. Im thinking of switching to Iscar, but want to hear what others use. Thanks