Mini CD Drive Printer (V2.0)

prusaprinters

Mini DVD Motor 3D Printer 2.0! Featuring dual Z and Y motors, and a heated bed. Features:Dual motors on Z and Y for improved reliabilitylinear bearings on all axisIntegrated extruder and spool holderDuet3D board and LCD.Parts required 5x CD Drive stepper motors. This gets tricky because some of them have different hole spacing. I have noticed LG or LITE-ON drives seem to have the correct ones.12x - LM3UU Linear Bearings1x - Nema17 (I used generic BMG extruder)Lots of 3M screws for assembly, some button head, some countersunk6x 3mm rods, recycled from CD drive3x microswitch for endstopsController board of choice. I am using Duet 2 WiFiEnder 3 Hotend1x 40mm fan for rear cooling1x 30mm fan for hotend2x 4010 blower fan for part cooling5mm LED strip for interior lighting channels50x50mm acrylic for print bed. Suggested PEI on top. Machine oil (sewing machine oil works) for rods and leadscrews.Panel mount barrel jack for powerOptional, USB C 12v PD board.Mini Heatbed PCBThe files for the heated bed PCB are attached, all credit to @icesythe7 for designing this. You can order the PCB from PCBway or similar.Attach heatbed PCB to bed mount and use pen springs to level, I also cut a small magnetic sticker and spring steel PEI to fitI printed the frame in PETG, all moving parts are ASA but PETG would be fine as well. the motors get very hot so PLA will deform.Assembly is fairly straightforward as shown in photos and fusion model. Take extra care to ensure your bearings are straight and parallel when pressed into the carriage or you will run into issues with loosing steps (motors are not very strong). I suggest assembling the two halves independently, and then putting them together at the very end.