Here we go again . . . MK4

[Davek0974]

Amazing, pure machinery porn.

The only thing I could add, based on the detail level in that axis is - where you have the grub screws for head tramming bearing upon the aluminium plate I might bore some recesses and let in some small steel pads, aluminium will give a little over time and your head could lose tram, especially when looking at the tolerances you are shooting for ;)

[routercnc]

Amazing, pure machinery porn.

The only thing I could add, based on the detail level in that axis is - where you have the grub screws for head tramming bearing upon the aluminium plate I might bore some recesses and let in some small steel pads, aluminium will give a little over time and your head could lose tram, especially when looking at the tolerances you are shooting for ;)

Hi Dave

I think you are right and it will give over time. I had gone for big grub screws and lots of them to spread the load but aluminium is soft. I could do with washers without the holes - don't fancy turning them from stock. Anything you know of that's available?

[Davek0974]

Don't know anything off the shelf, might just need some 10mm rod and part some 4-5mm discs off.