Hi everyone,
I have build myself a CNC router (see image).
The frame is constructed from aluminium extrusions.
I mostly mill aluminium parts on this machine.
The frame is quite stiff, however vibrations are an issue sometimes, especially on heavy cuts.
Basically the frame acts as a giant tuning fork, promoting chatter a lot.
I am moving apartments in a few weeks so I have to take the machine to parts (again....)
So I thought this is a good time (after dismantling) to maybe try and improve the frame.
I was thinking to fill the extrusions with either sand, or epoxy granite.
Do you think that's a good idea? and if so which of the 2 options would you suggest?
Oh and any more suggestions are very welcome
Thanks in advance!