Luke11CNC Build Log ,I'm so naïve

[Jonathan]

Yes Jonathan Image 7 has my display gantry and It's just been sold to help pay for the cnc machine But I may have a length spare would you like one ??

That's a generous offer... how long is one length and what diameter/wall thickness/material are the main 3 tubes?

what would you suggest for the bearing support as I was just going to mount the gantry sides to it ??

Difficult to say really. I used 100x60x5mm steel RHS which would be better but still not ideal. Aluminium extrusion is almost certainly the best option. You could just use solid blocks, but that's a bit crude and probably more expensive than two small lengths of extrusion. You just need to think of some construction that is strong in that direction.