New version with a little more tolerance
I wanted to be able to slide mount several different designs on a multiboard using exiting designs available in the various libraries. As I was building several models, I also wanted the bolt to be concealed, also avoiding a bolt hole in the design, which is not always practical. I designed these slide mounts as my first project in Fusion 360. The hole block mount to you multiboard with a small thread Flat head or T-Bolt. I designed a socket which fits in the hole to tighten the bolt (posted separately). The Hole Block mounts narrow side top the board, and is omni-directional. In your slicer or CAD program, you can import the slide and join it to whatever project you are working on. The Hole block is sized to 255mm x 25mm, one hole width on the board. This is the single hole version. Dual and Triple Hold version will also be uploaded. This single version also contains a 25mm extension, which when paired with slide piece, allows you to create any length of sliding attachment.