OrangePI Lite built into Sunhokey Prusa i4 and other printer modifications

thingiverse

3D printer for me is just one more tool like screwdriver or dremel. And (sure) very interesting project by itself. So many things were done with Sunhokey Prusa i4 for the past few months while I own it. This post is to summarize all changes (improvements?). What was done: * Second Y-axis rail inspired by pindemand: https://www.thingiverse.com/thing:1832499 * Control board and chassis active cooling: https://www.thingiverse.com/thing:2423258 * Circular fan duct with BLTouch sensor mount and additional lightening: https://www.thingiverse.com/thing:2495004 * Anti-backlash nuts integration inside X-axis holders: holder block was drilled out to 12mm from the bottom and 14mm from the top * Additional print area lightning: printer is installed in built-in cupboard so this is required * Z-axis screw rods stabilizer * Bed auto leveling with (clone of) BL-Touch sensor * Control panel moved down as printer is placed high enough https://www.thingiverse.com/thing:2671526 * Print head cable chain: https://www.thingiverse.com/thing:2422058 * Octoprint server running on OrangePI Lite PC integrated inside chassis so I can not only completely control printer remotely but even compile and upload printer firmware * Octoprint-controlled power relay allow powering on/off all printer hardware leaving active OrangePI PC only * Default power switch was replaced with 3-state switch (always on / off / controlled by Octoprint) and moved to front panel * Octoprint-connected web camera installed in cupboard for remote control and time-lapse * Filament runout sensor Latest version of Marlin firmware, customized for BLTouch clone, connected as shown on pictures may be found here: http://aeinc.ru/i4/ BLTouch sensor clone I use: https://www.aliexpress.com/item/1set-BLTouch-Auto-Bed-Leveling-Touch-Sensor-BLTouch-Classic-BLTouch-C-with-cables-Spare-parts-for/32787946802.html