Equipment Rail

I've created a rail to wall mount my cycling equipment, though it can be extended to hold whatever (tools, other sporting equipment, etc).  

The rail itself comes in ~210mm sections (which means the segments even fit diagonally on a Prusa Mini). 

I have designed two versions of each of the accessories, one that takes heat set inserts (my preference) and one that uses square m3 nuts (such as those found in the Prusa printer kits). To squeeze the nuts into the parts, a pair of parallel pliers can be helpful (it is intentionally a tight fit).

Print Settings

Unless noted otherwise, parts are printed with 3 perimeters and 15% infill, and a .2mm layer height.

All parts are printed as oriented in the STL file, and should not require supports. 

For the rail segment, you may want to enable a brim to hold the sharp corners to the build plate. Depending on whether or not your printer is enclosed, you may or may not need this.

For printing the shoe clips, I recommend 5 perimeters. 

The inset piece for the large tray accessory can be printed with the generic settings mentioned above, but for a bit of fun, you can set top and bottom solid layers to 0, and pick a fun infill pattern (such as honeycomb or gyroid). 

Assembling the Rail

To construct a rail, you need at least rail A and rail C , but you can extend it by 200mm for each rail B you add.

Preparing the Connectors

There are two versions of the connector, one with a cavities on each side of the connector for heatset inserts, and the other with a slots cut into the top to slide in square nuts.

For M3 knurled brass inserts, you'll need some that are dimensioned to the specs for assembling Voron printers. My favorite brand is Ruthex due to the quality of the parts. When installing the inserts, carefully push them in until they are flush with the outside of the connector. The cavity is made to perfectly fit the insert, and have a little buffer to hold the bolt.

For the square nuts, you'll need thin nuts such as the nuts included with the Prusa printers. Dimensions are 5.5x5.5x1.8mm.

Hardware

To assemble this, you will need two nuts or heatset inserts (see above) per connector. Each connector will also need two m3 socket head cap bolts, 6mm for the heatset insert version, or 8mm for the square nuts.

The screw holes in the rails are designed to be used with # 8 x 1-¼'' wall anchors, such as these. You can use larger or smaller screws, but your milage may vary.

Designing Your Own Connectors

I have included step files for the base connector for both the heatset inserts and square nut versions.

Please remix as you see fit!