Ender 3 - X-Axis Stepper Damper Adapter

prusaprinters

<p>I had been searching for a simple way to add a damper to my x-axis stepper motor, but I couldn't find any that I was excited about. This adapter is as simple as I can make it.</p><p>Benefits compared to other options</p><ul><li>Simple to install</li><li>No firmware changes required</li><li>No structural compromises (it's attaches to the original metal assembly)</li></ul><p>The only downside is that it requires 3 x M3*8mm screws.</p><p>The up side is that your printer will be much quieter!</p><p>Also, check out these other mods that dramatically reduce the sound of your Ender 3</p><ul><li><a href="https://www.printables.com/model/187667-ender-3-y-axis-stepper-damper-v2">Y-Axis Stepper Damper</a></li><li><a href="https://www.printables.com/model/187664-ender-3-z-axis-stepper-damper-adapter">Z-Axis Stepper Damper</a></li><li><a href="https://www.printables.com/model/187670-ender-3-low-profile-feet">Low Profile Feet</a></li></ul><p>Enjoy the silence...</p><p><strong>Updates:</strong></p><p>2019.04.28 - I updated the stepper adapter to accommodate placing a heat sink on the side of the motor. I have needed one, but I wanted to help those of you who do. see (Stepper_Adapter_v2)</p><p>2019.04.07 - I added pegs to hold the original x-axis pulley cover. These also seem to be sturdy enough to replace the endstop adapter I created. (see bottom of post for pictures)</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><h3>Post-Printing</h3><p><strong>Required:</strong></p><ul><li>1 x NEMA 17 Stepper motor damper</li><li>3 x M3*8mm screws</li></ul><p><strong>Steps (Part 1):</strong></p><ol><li>Power down printer</li><li>Remove wires from x-axis stepper and endstop switch</li><li>Loosen the belt tension bolts on the right side of the x-axis assembly</li></ol><p>(these do not need removed, we just need some slack here) 4. Remove the 4 screws holding the belt cover / endstop assembly</p><p>(save 2 of these 40mm screws for later) 5. Slide the new endstop mount onto the left side of the x-axis track 6. Insert and tighten an M3*8mm screw into the center hole of the mount to lock the endstop into place 7. Remove the endstop switch board from the x-axis cover 8. Using the original screws, attach the switch board to the new endstop mount</p><p>Your endstop should now look something like this... (we will connect the wires at the end)</p><p><strong>Steps (Part 2):</strong></p><ol><li>Attach the damper to the printed adapter plate with 2 x M3*8mm screws</li><li>Remove and discard the top-left and bottom-right screws from the back of the x-axis stepper motor</li><li>Remove the 2 lock nuts, closest to the stepper motor, from the back plate of the x-axis assembly</li><li>Press these 2 nuts into the damper plate</li><li>Fit the damper plate over the back plate of the x-axis assembly and tighten the screws back into the lock nuts</li><li>Slide 2 of the saved 40mm screws into the two printed spacers</li></ol><p>(they should appear recessed in the spacer) 7. Tighten these screws through the damper adapter, into the back of the stepper motor</p><p>(these should replace the screws you removed from the back of the stepper previously)</p><p><strong>Depending on your damper, there should be some wiggle room to perfectly center your stepper in the front mount plate. Notice the small gap around the inner ring.</strong></p><p><strong>Steps (Part 3):</strong></p><ol><li>Tighten the belt tension as desired</li><li>Check the tension by moving the hot end assembly back and forth</li><li>If you hear funny vibration noises, the belt might be too tight, causing the belt teeth to rubbing the pulley, and it might need loosened</li><li>Reconnect wires to the x-axis stepper and endstop switch</li></ol><p><strong>Pulley shifted 1mm but still works perfectly!</strong></p><p><strong>Optional Steps (Part 4):</strong></p><ol><li>Print 4 cover pegs</li><li>Slide small end of pegs into x-axis pulley cover</li><li>Push cover onto x-axis assembly upside-down</li></ol><p>(The end stop mount will interfere with the cover if attached right-side-up)</p><p><strong>Example using pegs to hold cover with endstop attached to cover... Everything seems tight, so this might be the best way to go if you want everything to look stock,</strong></p><p>Category: 3D Printer Parts</p>