Joe's 1000x600x200 steel and aluminium router started

[devmonkey]

Well I've milled 4mm either side of the slot flat on each side of the extrusion. Setup took a long time making sure everything was flat with the dial indicator, nipping up the gibs to try and counter the sag from the long overhang. I pretty pleased with the result, seems at least as flat as the extrusion. I need to get some rails mounted to it and make the Y bearing plates so I can see if it is sufficiently parallel to be usable. DOC was about 0.25mm with a carbide endmill, could feel it was cutting deeper on the outside due to the increased slope as discussed in the previous posts.

I had to make the cut in two steps, moving the beam and refixing between cuts since the mill table wasn't long enough. I can see the transition but cannot feel it. Nice hatch marks show the head was in tram.