Quote:
Originally Posted by JesseK
Does anyone have a simple way to reduce or eliminate the vibrations the CNC bit causes on a piece you're milling out? We're using C-channel for our side rails of our platform, and we're milling out holes for the wheel wells.
Near the end of the fourth run for each rectangle we cut out, the middle piece that's being cut out begins vibrating. It's not too rough, but it does cause noticable (yet tolerable) imperfections in the cut. Do we have to live with this (and file it down afterwards) or is there a way around it?
Thanks in advance.
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A bit confused here. When you say the middle piece that's being cut out vibrates-does that mean you're cutting the outer perimeter, and a chunk is falling down through the hole you've created?
If so, super simple fix. Spiral from the inside to the outside, and then you never have a big old chunk flopping around.
If the problem is just the leg of the C chattering, that's going to be pretty much unavoidable most likely. You can try to minimize it though. Easiest thing to do would be to only conventional mill as it puts much less force on the workpiece than climb milling.