Router build

[Web Goblin]

Sorry I dont have a build log, didnt really plan on doing one for this build. Stacking two sections of box shouldnt be a problem. Stitch weld them along the seam where they join at both sides and away you go. You will need to get them machined though as they wont be anywhere near straight. If you look at the pic of my gantry you will see flat bar welded to the front of the box section. This was added to be machined to get the front faces parallel and straight for mounting the rail on to. If you also look closely at the bottom of the picture, you cant really see it very well because the box of washers and rag are in the way, but another plate has been welded to the bottom of the box section. This has also been machined at right angles to the front on the gantry. These will sit directly on to machined plates which hold the linear bearing blocks for the x axis and should allow for any small adjustments required to square up the gantry.

Eddy, I dont think that expanding foam would provide any vibration damping or very little because it doesnt have any mass to absorb it. It might provide some noise reduction though.