1250 x 1250 cnc router (from scratch)

[Danielroyal25]

Should have some pics up by next weekend, got some done on the model but still needs a bit more work pre comments. Probably a bit early to discuss but could someone give me a rough guide on machining costs for 20mm thick alu plate for the z axis and y sides. Will be able to to get some sizes up soon. When the parts are ready for machining I can provide cad models or detail drawings. Let me know if I have any volunteers (also would be nice to see a few bits being machined in person).
Also when fixing the plates together are they normally just drilled and tapped? The fixings will be going into the side of the plate, will this make it difficult to set up to drill accurately?