Newton Pens
Elite Cafe Member
- Joined
- Sep 2, 2013
- Messages
- 103
So I got a Graversmith and 901 (yay!) except it doesn't seem to like cutting plastic. I can cut a line in aluminum and my old ancient pliers and other hard metals (well... sorta hard?). Just stick it, push my foot, and off it goes. All I have to do is steer. With acrylics is sort of just... sits there. Every now and then it'll take off, or seems like it does, but just for a second.
Any suggestions for optimum air pressure and SPM? I've had it at 19-20psi at 2300 and 3300 and 4200 spm and 6100 spm and dangit.... none of it feels right. I put the short spring in and tried at all spm as well, along with lower psi, around 12...
Help?
Thanks!
Any suggestions for optimum air pressure and SPM? I've had it at 19-20psi at 2300 and 3300 and 4200 spm and 6100 spm and dangit.... none of it feels right. I put the short spring in and tried at all spm as well, along with lower psi, around 12...
Help?
Thanks!