Dwolf55793
Plastic
- Joined
- Jan 20, 2022
Hello,
I am looking for some advice on milling an internal 7/8-6 double lead Acme thread. I am working in a 5axis C42 Hermle and using CAM Software. I purchased a single point 6tpi threadmill and can not get it to create a good thread form (seems to be back cutting). The threads I am getting are washed out (coming to a point rather than a flat), though my GO Gage fits it is so washed out that my NOGO Gage fits as well. I am programming two separate 3tpi tool-paths the second's starting angle is 180 degrees from the first. I milled the minor right on the number and the major is right on as well. I suspect I need a special theadmill but not really sure.
Any advice is appreciated.
I am looking for some advice on milling an internal 7/8-6 double lead Acme thread. I am working in a 5axis C42 Hermle and using CAM Software. I purchased a single point 6tpi threadmill and can not get it to create a good thread form (seems to be back cutting). The threads I am getting are washed out (coming to a point rather than a flat), though my GO Gage fits it is so washed out that my NOGO Gage fits as well. I am programming two separate 3tpi tool-paths the second's starting angle is 180 degrees from the first. I milled the minor right on the number and the major is right on as well. I suspect I need a special theadmill but not really sure.
Any advice is appreciated.