Adjustable Spoolholder with Steppermotor Support

prusaprinters

<p>DESCRIPTION:&nbsp;</p><p>I created an adjustable spoolholder for my ikea LACK enclosure, because most of my spools have different widths. After a few rolls I got tired off manualy rotating the knob for the &nbsp;moving plate, so I also included a mount for NEMA17 stepper motors.&nbsp;</p><p>Things not 3D-printable:</p><ul><li>2x linear rods (8mm diameter, ca. 200mm length)</li><li>1x Leadscrew (8mm diameter, ca. rodlength + 40mm)</li><li>1x Leadscrew-nut (light gray in picture)</li><li>4x VSlot-Rolls (https://amzn.to/3CfIsYA used in this design)</li><li>13x Threaded Insert M3 (https://amzn.to/3vBZrmr used in this design)</li><li>13x M3 Screws</li><li>Zip-Ties to keep Lead-Screw in place</li></ul><p>For Use with Stepper Motor additionally:</p><ul><li>1x Electronics: Arduino, NEMA17 Stepper, 2 Pushbuttons, Stepperdriver (e.g. A4988)</li><li>1x Powersupply (1x for Arduino, 1x for stepper (can be used from printer)</li><li>1x Motor coupler 5mm to 8 mm (https://amzn.to/35IgqbI used in this design)</li><li>1x DC/DC converter (https://amzn.to/35vRsNm I use this one) for 12/24V to 5V for Arduino&nbsp;</li></ul><p>Have fun with it.&nbsp;</p><p>&nbsp;</p><p>Please feel free to comment or recommend changes.&nbsp;</p><p>________________________________________</p><p>FILES:&nbsp;</p><ul><li>GCode for my 0.3 mm Layer height settings (for Prusa i3 MK3S)</li><li>individual .3mf files if you want to slice on your own (e.g. for different printers)</li><li>spoolholder.ino as firmware for the Arduino (mostly commented) (Arduino IDE required to flash and edit the firmware)</li></ul><p>________________________________________</p><p>CHANGELOG:</p><ul><li>0001: 03-03-2022-10-25: Moving plate and frame plates updated to smaller size, they now fit spools with ~20cm diameter</li><li>0002: 03-03-2022-11-58: Added spoolholder.ino Arduino firmware</li><li>0003: 03-03-2022-12-18: Added MovingPlate and FramePart1 3MF files for mounting VSlot-Wheels with M5 Bolts and threaded inserts (ruthex recommended); also added GCode for this Version (for Prusa i3 MK3S)</li><li>0004: 07-03-2022-18-47: Added Circuit diagram for my firmware (Note: on circuit diagram above the second switch should be on Pin 16 as in firmware) (limited to components from iCircuit so Arduino Uno in this circuit diagram)</li><li>0005: 07-03-2022-19-07: Added "spoolholder_ArduinoMicroA4988.ino" which is the firmware used for my setup as shown in pictures&nbsp;</li></ul><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>________________________________________</p><p>FUTURE CHANGES / RECOMMENDATIONS</p><ul><li>Limitswitch should be added</li><li>NumPad support to enter spool widths (needs limitswitch) instead of jogging manually</li><li>GCode support (which command should be used? G1 because linear move?)</li></ul>