Dual Z Adjustable Bracket for Geeetech A10 / A10M / A20 / A20M + Short Firmware Instructions

thingiverse

Update 09.01.2020: I widened the lead screw nut hole to accommodate a broader range of lead-screw nuts, previously it was 22.0mm and now in V2 it's 22.6mm. Additionally, I implemented some minor improvements overall. (check out the gif at the bottom of the page) If you appreciate this upgrade, don't forget to leave a TIP for your favorite beverage: https://www.paypal.me/akoswonerth This is one of my upgrades after installing the E3D Hemera Extruder/Hotend. The slightly heavier Hotend required more support on the right side, so I considered upgrading to a second Z Axis. Inspired by CR83D's Dual Z: https://www.thingiverse.com/thing:3742027 I designed my own version from scratch for the Geeetech printers: What you'll need: 1x Stepper Motor 1x Stepper Driver 1x Motor Cable 1x T8 Lead Screw and nut (Pitch 2mm, 4 start, 8mm lead) (400 steps/mm) 1x 8x5 Coupler (I use this one on all my printers: https://www.thingiverse.com/thing:1264447) For the second Z-screw mount: 1x M4x50mm - alternative: 1x M4x55mm threaded rod + M4 Lock Nut 2x M5x40mm For mounting the stepper Motor: 4x M3x16 screws 2x M3 T Nuts Printed Parts: 1x Dual Z Back Plate - Lead Screw Mount 2x Small Spacer 1x Big Spacer 1x Stepper Motor Mount (https://www.thingiverse.com/thing:2752080) I wired the second Z-Motor to the free drivers on my GT2560_V3 board, but if you don't have any available drivers (A10T or A20T), you can still wire the second motor in Serial or Parallel to the first Z-Motor.