Ender 3 - Direct Drive Adapter

prusaprinters

<p>This is a direct driver filament adapter that I created for my Ender 3. I reused pretty much all my stock parts, except I needed to replace 2 of the stepper mount screws with M3-20 to account for the new mount depth. Everything fits really nice, and I'm even able to continue using ReplayMD's <a href="https://www.thingiverse.com/thing:2776404">filament knob v2</a> and the <a href="https://www.thingiverse.com/thing:2759439">Petsfang Bullseye Duct</a>. Although I did need to trim the cable guide from the Petsfang fan base.</p> <p>Notes:</p> <ul> <li>The 2 red components in the pictures are the ones required to convert your stock Ender 3 to direct drive.</li> <li>This has been tested by <a href="/make:609713">rbalandis</a> and works fully with the <a href="https://store.micro-swiss.com/collections/cr-10-ender-2-3-tronxy-cr-10-pro">Mico Swiss</a> hotend</li> </ul> <p><strong>Updates:</strong></p> <p><em>2019.02.15</em> - I added a cable chain end by request. This terminates johnniewhiskey's <a href="https://www.thingiverse.com/thing:2920060">Ender 3 Cable Chain</a> directly to the z axis assembly so both ends of the chain are perfectly aligned and alleviate the unnecessary tension on the chain.</p> <p><em>2019.02.03</em> - I added a cable support that attaches to the old stepper mount. I primarily designed this to keep the cable out of the way for video recording from behind, but it also cleans up the cable as well.</p> <h3>Print Settings</h3> <p><strong>Supports:</strong></p> <p>No</p> <p><strong>Resolution:</strong></p> <p>0.2</p> <p><strong>Infill:</strong></p> <p>40%</p> <p><strong>Notes:</strong></p> <p>Wall Thickness of 1.2 - 1.6mm (3-4 walls)</p> <h3>Post-Printing</h3> <p><strong>Adapter Install</strong></p> <p><strong>Print:</strong></p> <p>100% infill for adaptor</p> <p>30% infill for spacer and cable support</p> <p><strong>Required:</strong></p> <ul> <li>2 x M3-20 screws</li> <li>50-60 cm of Old USB cable</li> <li>Small heat shrink tube or electrical tape</li> </ul> <p><strong>Steps:</strong></p> <ol> <li>power off the printer</li> <li>disconnect extruder stepper motor cable and bowden tube</li> <li>remove extruder and stepper motor from mount</li> </ol> <p>(save everything except 2 screws closest to the extruder output) 4. reattach the extruder to the stepper motor with the new 2.5mm spacer in between</p> <p>(compare the direction of the connector to the supplied photos and don't bother including the 2 screws closest to the extruder output) 5. remove the top 2 rollers from the x axis carriage (discard the 2 aluminum spacers) 6. slide the direct drive adapter on where the 2 aluminum spacers were previously located</p> <p>(notice that there is a small lip in the middle that slips over the x axis carriage) 7. cut the bowden tub to size</p> <p>(The idea is to have the extruder perfectly flush with the adapter and to have the bowden tube unable to wiggle up and down. I did this by cutting the tube a bit too long, and continually slicing off a little at a time until everything fit perfectly) 8. using the 2 M3-20 screwes, secure the stepper to the direct drive adapter 9. add approximately 50-60 cm of wire to the stepper extruder cable</p> <p>(splicing an old usb cable or similar 22ga wire into the cable) 10. (optional) I also fed the usb cable through my wire harness to keep things neat 11. use heat shrink or electrical tape to protect connections</p> <p><strong>Cable Support Install</strong></p> <p><strong>Required:</strong></p> <ul> <li>2 x M3*8 Screws</li> <li>2-3 x Zip Ties</li> </ul> <p><strong>Steps:</strong></p> <ol> <li>slide the cable support onto the old stepper motor mount</li> </ol> <p>(it should be parallel to the x-axs rail) 2. screw the M3*8 through 3. attach zip ties though the provided slots</p> <p><strong>Notice the two center wires are swapped...</strong></p> <p>If I missed anything that you guys notice, or if you think anything could be more clear, leave comments and I'll do my best to update.</p> <p>I'll try to post some pictures of my adapter with the stock ender fan mounts too.</p> <p>I hope this works as great for you guys as it's working for me!</p> Category: 3D Printer Parts