Summary This is a modification of M3D Micro Chassis tablet holder http://www.thingiverse.com/thing:753885 I used the clamps from the M3D Mounted Spool holder (clamps were beefier) http://www.thingiverse.com/thing:705345 I extended the top support and added support to the back and bottom. To get it to fit on the M3D bed, make the following changes ... XY location = x:54 y:51 XYZ size = x:1.0 y:.93 z:1.0 (I made this change to make a tighter fit to the case XYZ rotate = x:0.0 y:0.0 z:25.0 This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/ay70BUzc8T3 Instructions Medium Fill and Medium Quality. I set the Y size to .93 and that makes the clamp pretty much snap on to the case. If you don't change the size, it still fits fine, just a little bit of slop.