Ok i will ping them an email and ask how best to send to them, My extrusions are only 40x40 & 40x80, i have drawn up mounts that bolt to the Extrusion and then take the BK & BF15 supports. I will 3D Print these first to check how well they work, then have them machined or attempt to machine myself.

I THINK the 40x40 & 40x80 will take an M10 Bolt? Im not sure and im also not very clued up on the tolerances i should be putting on any the holes i have on the Build, at the moment through holes i have just allowed 0.5mm tolerance for the bolts to slide through - too much or too little?

I would have to check that through bolting into the extrusion would not interfere with the mounts for the bearing supports at either end of the X Axis, if so i will just have to use brackets.

Click image for larger version.  Name: Bracket1.png  Views: 845  Size: 932.4 KB  ID: 22492

Click image for larger version.  Name: Bracket2.png  Views: 832  Size: 804.1 KB  ID: 22493

Thanks

Alex

PS Any build log for yours?