RatRig V-Minion - Untethered Mod

prusaprinters

<p>This is a mod to Rat Rig's V-Minion 180 printer to remove the separate electronics box and make the printer a single unit.</p> <p>Electronics box is designed to take boards compatible with Ender 3 board - SKR E3 V2 in my particular case. The newer SKR E3 V3 should also fit, but may need some tweaks for the power in connector since they removed the exposed Vin from V2.</p> <p>Update 2023-03-28: added version for the, now more popular, SKR mini E3 V3 board. E3 has the major advantage of having extra fan control port, perfect for the electronics box cooling fan</p> <p>You will need a specific power supply to make use of this mod. That would be Meanwhell UHP-350-24</p> <p>In terms of hardware - 7x socket head M5x12 with M5 3030 T-nuts along with 2x socket head M3x10 bolts to secure the lid to the electronics box and printer frame (3) and the brackets holding the power supply (4). There are 2x countersunk M5-12 to secure the box to the frame of the printer. 4x socket head M3x6 bolts along with 4x M3 nuts to secure the power supply to the bracket. The bolts needed to secure the power supply front and rear caps are 2x M3-25 (front) and 2x M3-50 (rear).</p> <p>IEC module used for the power inlet is <a href="https://www.digikey.ca/en/products/detail/adam-tech/IEC-GS-1-100/9831135">https://www.digikey.ca/en/products/detail/adam-tech/IEC-GS-1-100/9831135</a> (the typical bolt-in one is too wide and I wanted to keep the slim profile and chose this one. There are many similar sharing the dimensions on <a href="https://www.amazon.com?linkCode=ll2&amp;tag=thingiverse09-20&amp;linkId=e4759bff1fa9a55a0f897d801ce2d765&amp;language=en_US&amp;ref_=as_li_ss_tl">Amazon</a> and whatnot.</p> <p>Enclosure fan is a 6010 axial fan with 5V, if used with SKR mini E3-V2, or 24V when used with newer SKR Mini E3 V3 board (The 5V fan can be hooked up to EXP1 port GND and 5V pins on one end, but will spin all time while printer is powered on).</p> <p>Screen mount is not included here, since there are many options available and you may not have the same screen that I used for this project. Screen from the picture is BTT PiTFT50, the screen case hosts the Raspberry Pi as well which I feed from dedicated DC/DC buck converter mounted on the frame behind the main PSU and connecting trough Pi's and SKR UART ports (called TFT on the SKR). I may upload the screen case as a separate thing later.</p> <p>If you like my work - you can <a href="https://www.paypal.com/donate/?business=435DBMDTVP3XW&amp;no_recurring=0%C2%A4cy_code=CAD">buy me a coffee</a> :)</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>RatRig V-Core 3</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>Yes</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2</p></div> <p><strong>Notes:</strong></p> <p>Lid requires support for the fan base, automatic supports touching build plate should do fine. The other parts should print support free with no issues.</p> </p></p> Category: 3D Printer Parts