A long while ago I posted about trying to find a better 65mm mount for the Z-plus to try and limit vibration. Some folks suggested that is can also be caused by the V wheel assembly on the X axis, since it isn’t inherently stiff in that direction. After rechecking all the V wheels I was still having issue with cuts in the Y axis chattering while my X axis cuts were silent besides the router just being on. I am still looking to make an improvement spindle mount, but I did find an interesting solution.
Last week I was finishing up a coat rack for my entry way and was still having bad vibrations in the Y axis cuts.
1/4" 2 Flute End Mill
60 IPM(0.0025 IPT)
The finish cuts were only cleaning up the 0.010" stock to leave and sounded better, but not great.
Last night I put a 9.5" x 2.75" of walnut up on the table and clamped it with 3 gator clamps. (Rock Solid) I made an adaptive clearing toolpath in fusion with the same settings as above, but feed rate was upped to 72 IPM (0.003" IPT). As it was cutting I was varying the feed rate on both X and Y axis cuts. I had to drop down to almost 20 IPM to lose the vibration in the Y axis. As a leap of faith I decided to see if a higher feed rate could possibly help. It sounded bad up to 90ish IPM and then suddenly went as quiet as an X axis cut around 100.8 IPM. I was only able to get it up to 115.2 before I was running out of material, but I was happy to see improved results.
Anybody else experience results like this? I’ve tried similar things in plywood, but I think the DOC and WOC at that time were too high to really punch the feed rate.