8. Y-axis Drive & Machine Limits

Step #08 - Connecting the Rack & Pinion

List of Components

ItemSpecQty (S/M/L)
 Angle bracket 20202
 Compression spring14.5mm2
 DIN912 screwM5x502
 ISO7380 screwM5x202
 LocknutM54

Tools needed

Allen Key 3mm Allen Key 4mm Spanner 8mm

Instructions

  1. At the front of the gantry steel plate, fix 1 angle bracket using 1 screw and 1 locknut.
    1. Put the compression spring on the M5x50 screw and place both in the free hole of the angle bracket.
      1. Bring the motor and pinion assembly and attach both using 1 locknut.
        1. Tighten the nut to strongly load the spring, leaving around 2-3mm of compression run available. Alternatively, you can fully tighten the spring until it is closed and unscrew it backwards for 3 full turns (which corresponds to a distance of 2.4mm).
          1. Replicate the same assembly on the other side.

            Animation