Compression bit to reduce chatter from lack of rigidity on Z-Axis

(Alex Kahn) #1

When hogging out material I get some chatter when trying to use half an inch of the cutting area on the bit, I assume because the spiral is hitting the wood and pushing the bit in the direction of the spiral causing the Z axis to vibrate so my thought was that a compression bit would stop this since it would be pushing in two directions canceling each other out to some extent.

This is with a 1/2 upcut chip breaker bit currently, I have less issues when using a 1in straight bit and a .25 depth of cut but the plunges can be problematic in very hard wood like hickory. If they made a hybrid spiral top / straight bit that would be perfect but I don’t think that exists.

Just looking for some feedback and or some ideas.