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Post by knifemaker on Oct 10, 2022 9:58:12 GMT -5
Very new to CNC, so apologies in advance. I finally have my Axiom up and running and it looks like on a facing operation I'm not getting a smooth surface between passes - i can feel the ridge (see image). I then did a little test with a ball end mill a few thou deep on a contour path and I get fairly different depths (2nd image). Perhaps I need do tram the machine? Any advice appreciated, Paul   |
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Post by dadealeus on Oct 10, 2022 10:51:32 GMT -5
Very new to CNC, so apologies in advance. I finally have my Axiom up and running and it looks like on a facing operation I'm not getting a smooth surface between passes - i can feel the ridge (see image). I then did a little test with a ball end mill a few thou deep on a contour path and I get fairly different depths (2nd image). Perhaps I need do tram the machine? Any advice appreciated, Paul View AttachmentView AttachmentHey Paul,
Welcome to the forums.
These issues could be caused by a few things, depending on which way you are cutting, how the workpiece is secured to the table, and the surface of the workpiece, itself.
I'm not exactly sure what I'm looking at in the first image, but I believe you're referring to the 3, parallel, frayed cuts in the center. It does appear that those cuts could be much improved by tramming the spindle if that's the case.
If you're standing at the front of the machine and those cuts were made from left to right, you're going to have to tram the spindle using shims. There are several users who have had success with a variety of shims - including something as simple as a few layers of aluminum foil.
If you're standing at the front of the machine and those cuts were from front to back, then you can tram the spindle using the mounting nuts/bolts.
I attached a video of someone going over the process. The equipment he has is helpful, but not required for the process as you can also just make an adjustment and then test the results, repeating the process as needed (which is what I did).
As to the second image, this looks to be more of an issue with a stock that didn't have a level face to begin with, or wasn't mounted perfectly flush to the spoilboard. Either way, tramming the spindle would not fix the issue in the second image. However, making sure that your stock is flush with your spoilboard and is properly face milled before performing your cuts will.
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Post by gerry on Oct 10, 2022 23:22:50 GMT -5
That's a pretty good tramming video. It's pretty close to the procedure I use with great success.
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Post by knifemaker on Oct 26, 2022 16:25:23 GMT -5
Thank you! I'll give that video a watch and try tramming this weekend! Will report back!
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