Planning and build of my "8020" aluminium CNC Router

[ptjw7uk]

I'm thinking of going the 2x4 route as my micro mill is just not big enough.
I favour the timing belt route over screws but so far not found a source of long lengths.
I am also being a little constrained as I have run out of workshop space and am also persueing a vertical bed design but not sure what the forces would be?
So I have plenty of ideas but I'm afraid not much advice to give you.

Peter

[monza]

That's scary I just drew up my idea in illustrator.



My theory is that the meshing of the belts will minimise backlash and should hopefully give a nice fast accurate and stable movement :)

[irving2008]

have you considered chain drive rather than timing belts? buildyourcnc has an example for a 4x2 and 8x4 blacktoe design