Making the frame square

[JAZZCNC]

One corner was 3mm lower than the other because I just started building from the garage floor assuming it was level.

Ah I see so you effectively put it in twist. But ounce positioned the epoxy will have levelled this out for you won't it.

That's a good point for Rob and others thou because while it may be obvious to others not everybody thinks that you need to start building from a FLAT level surface. It often pays out to spend a little time making a platform to work from or spend the time setting the bench level.!