Big Einsy Case for Bear Upgrade

prusaprinters

<p><strong>Notable changes</strong></p><ul><li>Geometry added to mate with the Bear Upgrade V-Slot Extrusions<ul><li>Use either drop-in or standard T-Nuts</li><li>Use either M5-10 socket head or M5-8 flat head screws</li><li>Temporary M3-12 screw added to aid in sliding T-Nut alignment.</li></ul></li><li>Case is 3mm wider to accommodate M5 socket head screws</li><li>Vent pattern inspired by Prusament filament spools.</li><li>Extruder cable clamp diameter reduced to 13mm with tie wrap securing.</li><li>The square and hex nut cavities were resized for better retention.</li></ul><p><strong>Printing</strong></p><ul><li>Layer height: 0.3mm Draft</li><li>Supports: “Support on build plate only” with painted support blocking. See .3mf file for details.</li><li>Filament: Prusament PETG</li></ul><p><strong>Mounting to Bear Upgrade Frame</strong></p><ul><li>Required Hardware<ul><li>6 M3 square nuts</li><li>4 M3 hex nuts</li><li>4 M3-10 screws</li><li>2 M3-25 screws</li><li>4 M3-10 flat head screws</li><li>3 M5-10 socket head or M5-8 flat head screws</li><li>3 M5 T-Nuts, drop-in or sliding</li></ul></li><li>Clean out all holes with a 3mm or 5mm drill bit. Pay particular attention to the four cover mounts. The 3mm hole extends fully through the mounts to aid in clearing debris.</li><li>Insert six square nuts, four in cover mounts, two in the clamp.</li><li>Insert four hex nuts into the back by drawing them through with a M3-12 or larger screw.</li><li>Remove the vertical extrusions's top plate and insert a sliding T-Nut if available.</li><li>Insert an M5 screw in the single V-Slot hole nearest the back. Partially thread a drop-in T-Nut and secure the case to the frame. &nbsp;Using a drop-in T-Nut precludes the need to remove gussets.</li><li>Slide the two sliding T-Nuts to the top of the extrusion. &nbsp;Insert a temporary M3 screw &nbsp;hole as shown. Then, let gravity slide a T-Nut into position and secure. &nbsp;Repeat for second _T-Nut.</li><li>Install the Einsy board with four M3-10 screws.</li></ul><p><strong>Wiring</strong></p><p>I found the following order worked well for me.</p><ul><li>Remove the three fuses</li><li>LCD ribbon cables</li><li>Power Panic</li><li>PSU cables</li><li>Heat Bed Power</li><li>Hot End Heater</li><li>Extruder Motor</li><li>Z Axis Motors (2)</li><li>Y Axis Motor</li><li>X Axis Motor</li><li>Left Hot End Fan</li><li>Front Hot End Fan</li><li>Filament Sensor (lower row of pins)</li><li>Heat Bed Thermistor</li><li>Hot End Thermistor</li><li>Super Pinda</li><li>Install fuses</li></ul>