Hi,
I've just completed my home built MDF CNC router. My design is loosely based on 'www.buildyourcnc.com' design with a few changes here and there.
My first cut was into MDF and the vibration marks showed up immediately. I then tried a clear plastic cut (as attached) and still showed vibration.
This was cutting very slowly at around 8"/minute and I also tried upto 50"/minute which showed no difference. I varied the cutting speed from between 11,000-32,000rpm, nothing seemed to make any difference.
The distance between the router mount and the collet is 3", therefore router mount to tip of router bit is about 4". Is this distance too long? All axis movement are rock solid with no play at all.
The router cuts well when used freehand so that rules out any offset collet/router bit issues.
As you can see the sign looks OK from a distance but up close it's shocking. Has anyway resolved a similar issue. Any advise welcome.
Cheers
Iain