P3Steel Arduino + RAMPS slide-in holder

thingiverse

I wanted a holder that incorporates existing Arduino mounting holes on the P3Steel frame without needing screws, ties, or anything else to keep the Arduino + RAMPS combo firmly in place. It should also have enough space for an 80mm fan mounted on a bracket and position LCD connectors pointing up, which suits my LCD display setup on top of the P3Steel frame. I wanted this holder to use as little PLA/ABS material as possible while still being strong and secure. After trying a few different designs, I finalized one that meets these requirements and includes clearance for USB and power supply cables exiting through the bottom. This design uses OpenSCAD files that can be remixed according to individual tastes, and it's worth noting that this holder should work well with any Prusa i3 wood frame too. Please take some time to read through the instructions carefully before printing out your custom holder. Using an 80mm fan and its corresponding bracket from thing #166045 by mgx (Marius G), I needed to re-drill original mounting holes on the P3Steel frame using a 3mm bit because those three coats of paint I had applied greatly reduced their diameter. The printing process requires ABS or PLA, with this design utilizing four x 12mm M3 bolts and nuts. Before proceeding, be sure to check hole placement on your intended frame side, determine whether any modifications are required for mirroring it in your slicing software, and verify this accordingly before continuing with the print.