Hi, I recently built my own cartesian style CNC router with 12mm plywood parts. Its mostly an OX style CNC with delrin wheels for linear motion on V-slots. I can mill 6061 aluminium on this but I see a lot of chatter. Here is a video where I'm milling a 5mm hole and as you can see there is a lot of vibration and an awful racket as the mill goes down the material (look at the mist nozzle. Why is this?
CAM was done in Fusion 360. This was a boring operation with a 0.1mm step pitch. Material thickness is 6.7mm. Feed was 260mm/min. The tool is a 4mm 2 flute end mill.
Could this probably be because of the delrin wheel based axes? Would replacing them with a linear shaft and blocks help? Perhaps I'm doing the wrong operation?
https://www.youtube.com/watch?v=2S2afTJM5J0
