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

prusaprinters

<p>Update 09.01.2020: I updated the lead screw nut hole to accept a wider range of lead-screw nuts, before the diameter was 22.0mm and now in V2 its 22.6mm. I also added some minor tweaks overall. (check out the gif on the bottom of the page)</p> <p>If you like it, don't forget to leave a TIP for a cold or warm beverage: <a href="https://www.paypal.me/akoswonerth">https://www.paypal.me/akoswonerth</a></p> <p>This is one of my upgrades after I installed the E3D Hemera Extruder/Hotend.<br/> The slightly heavier Hotend needed a little more support on the right side so i thought about upgrading to a second Z Axis.</p> <p>Inspired by CR83D's Dual Z: <a href="https://www.thingiverse.com/thing:3742027">https://www.thingiverse.com/thing:3742027</a></p> <p>I made my own version from scratch for the Geeetech printers:</p> <p>What you'll need:</p> <p>1x Stepper Motor<br/> 1x Stepper Driver<br/> 1x Motor Cable<br/> 1x T8 Lead Screw and nut (Pitch 2mm, 4 start, 8mm lead) (400 steps/mm)<br/> 1x 8x5 Coupler (I use this one on all my printers: <a href="https://www.thingiverse.com/thing:1264447">https://www.thingiverse.com/thing:1264447</a> )</p> <p>For the second Z-screw mount:</p> <p>1x M4x50mm - alternative: 1x M4x55mm threaded rod + M4 Lock Nut<br/> 2x M5x40mm</p> <p>For mounting the stepper Motor</p> <p>4x M3x16 screws<br/> 2x M3 T Nuts</p> <p>Printed Parts:</p> <p>1x Dual Z Back Plate - Lead Screw Mount<br/> 2x Small Spacer<br/> 1x Big Spacer<br/> 1x Stepper Motor Mount ( <a href="https://www.thingiverse.com/thing:2752080">https://www.thingiverse.com/thing:2752080</a> )</p> <p>I wired the second Z-Motor to the free drivers on my GT2560_V3 board, but if you don't have any free driver (A10T or A20T) you can still wire the second motor in Serial or Parallel to the first Z-Motor</p> <h3>Print instructions</h3><h3>Category: 3D Printer Parts Print Settings</h3> <p><strong>Printer:</strong> Geeetech A10</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> No</p> <p><strong>Resolution:</strong> 0.2</p> <p><strong>Infill:</strong> 25% - 35%</p> <p><strong>Filament:</strong> Geeetech PLA Applegreen</p> <h3>Post-Printing</h3> <p><strong>In "configuration_adv.h" delete "//" from the front of "//#define Z_DUAL_STEPPER_DRIVERS" like in the pic above</strong></p> <p><strong>In "pins_GT2560_V3.h" add the "Z2_Step_PIN" , "Z2_DIR_PIN" , "Z2_ENABLE_PIN" with the pin numbers from where you attached the driver and mototr cable. I use the E1</strong></p> <p><strong>V2 - Upgrade 01.09.2020</strong></p>