Customizable 19" Rack Rails for Audio/IT Gear

prusaprinters

<h3>About</h3><p>I love 19 inch rack gear and I try and rackmount everything I can in my audio and home tech setup. Cutting aluminum beams isn't always an option so I thought I would make a custom setup for my electronics workbench to tidy up the power strips and give me a place to mount a small eurorack setup to interface with my inventions in progress. One thing I always wanted from my rack rails was indicators for the rack unit heights so I added the double diamond motif you can see in the pictures to help you visualize where things will go.</p><h4>Hardware Required</h4><p>The rails fit the standard M6 square nuts (I used <a href="https://www.thomann.de/intl/adam_hall_5660_square_nut_pack.htm">Adam Hall 5660</a>) do not use Hex nuts as they will be too thick. The couplers use M4 socket cap bolts (with a 7mm diameter head) to connect together and the feet also have 4mm holes so you could use m4 bolts or screws to mount it.&nbsp;</p><h4>Customizing</h4><p>Each rail is fully customizable in OpenSCAD and I provided STL files for the 6U configuration Per rail you can decide the side(left/right) the number of rack units (U) and the feature on each end such as the feet, couplers or you can leave it blank.</p><h4>Recommended Print Settings</h4><p>For printing I used a 0.8mm nozzle with a .55mm layer height. with the standard settings except for a 10% infill They print really fast and strong in this configuration and have that nice striped textured surface that looks flawless.&nbsp;</p><p>You could easily print them with a 0.4 nozzle but it would just take longer.</p><h5>Supports</h5><p>It was designed to print without supports.</p><p>The only overhangs are in the couplers but they are extra deep to allow for any drooping and printed fine without supports</p><h5>Post Processing</h5><p>I recommend going over the coupler faces with a hobby knife to make them smooth, or you could try ironing. This is just to make the coupler faces fit snug and not have any noticeable gaps. I cleaned up the bolt holes with a drill just to smooth them out for easy fit but it isn't necessary&nbsp;</p>