Ender 3 X-Axis Stepper Softmount w/ Direct Drive Extruder Endstop
Description
This x-axis stepper vibration damper is designed to be compatible with the [SpeedDrive v1 - Ender 3 direct drive mount](https://www.thingiverse.com/thing:3816051). Because the direct drive mod mounts the extruder motor behind the hotend for better COG, the x-axis endstop needs to be moved approx. 1 cm further inwards from the default position to keep the side of the extruder stepper from hitting the left vertical strut. I completely rebuilt a-make-design's mount in Fusion 360, with the endstop moved forward as required. That also allowed me to move the PCB slightly lower which eliminates the need for mounting an extra stopper onto the carriage. While at it, I gave it a nice curved shape that helps to absorb the forces of the carriage hitting the endstop, and also reduces print time and material use a bit. **Note:** I'm would assume that this also fits the CR-10, but I haven't been able to confirm that myself. If you do use it on that printer, it'd be great if you could leave a comment so it can be added to the description. --- ### Required Materials - 1x NEMA 17 stepper vibration damper - 2x M3x5 round head screws (usually included w/ damper) - 2x M3x20 cap head screws - 2x M3x25 screws - 2x M3 nuts - 2 or more M3 washers (optional) --- ### Recommended Print Settings (Cura) Line Width: 0.44 mm Layer Height: 0.2 mm Wall Line Count: 4 perimeters Top/Bottom Thickness: 1.0 mm Infill: 35% Gyroid Supports: None --- ### Assembly Instructions Loosen x-axis belt. Unscrew and remove the motor and endstop (the screws are behind the sticker with the QR code). Then mount everything using the new holder according to the [assembly animation](https://youtu.be/1IM2U2jU54E) in the video above. Don't forget to re-tighten the belt. **IMPORTANT:** As the motor is now sitting on the other side of the gantry, the stepper direction will need to be reversed - there are 2 ways to achieve this: a) You can either do it by modifying the firmware, as explained in more detail by A-make-designs in the [remix source](https://www.thingiverse.com/thing:3367587). ..or.. b) by physically reversing the stepper motor connector (on the motor side). To depin the connector I like to use a pair of sharply tipped tweezers (a sewing needle should also work) to carefully lift the plastic tabs holding each of the crimped wires in place inside the connector, pull the wire out and then re-insert the pins in reverse order. --- ### Related things - For the y-axis I use the [Ender 3 - Y-Axis Stepper Damper V2](https://www.thingiverse.com/thing:3488452). - The fan duct shown in the photos is the [Ender 3/CR-10 FANG Lateral Cooler Remix](https://www.thingiverse.com/thing:3504842).
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