Ender 3 v2 3DFused X gantry dampener shoe

thingiverse

REQUIRES: * 3D Fused Ender 3 Pro/V2 X-Axis linear rail gantry modification * M4 tap * Additional hardware (see below) This is a shoe to help apply pressure and therefore dampening to the X carriage on the 3d-fused X gantry. Sweet as the linear rails are, the quicker X travels seem to cause the gantry to rattle, partly due to belt tension and resonance, and partly due to the stepper motor's stepping vibrations. The linear rail + carriage are about 13mm deep (rail is 8mm, rail carriage is 10mm, with 5mm above the top of the rail), so the distance between the gantry and the X carriage is (8+5) or 13mm. This shoe is 13.5mm thick, so there is a little preload on it. You have to compress it to fit between the gantry and the carriage. Hardware: * 1 M3 washer * 1 M3 x 8 machine screw * 1 M4 washer * 1 M4 x 10 machine screw Directions: 1. Get an M4 tap and tap the larger hole on the backplate (It has a 3.5mm bore, which is readily tappable for an M4 screw.) 3.5mm is the through-hold size for an M3 screw, but close to the tapping size for an M4. 2. Press the shoe end against the gantry 3. Wedge the mounting end against the back of the carriage 4. Install M3 and M4 nuts and washers Adjustments: * To increase or decrease the force of the shoe, it is very easy to scale this part in one direction to make it wider or narrower to increase or decrease the preload on the shoe. * Do not shrink to 13mm - this is the distance between the X gantry and the carriage. It would be pointless. * Ideal dimensions are somewhere in the range 13.1mm to 14mm? * Model comes 13.5mm, as pictured. Let me know if it works for you.