OctoPrint Spool Holder

prusaprinters

OctoPrint Spool HolderA spool holder and RPi case for using OctoPrint with a touch of RGB  Print settings : Side Logo, Side, Led mount, Difuser and Lock:Layer height0.2mmInfill30%SupportNoBuild plate adhesionNone Difuser shield:Layer height0.2mmInfill99%SupportNo Build plate adhesionNoneThe infill ratio is high to block light from the LEDs Settings Base, Roll:Layer height0.2mmInfill30SupportNoBuild plate adhesionRaftThe roll and base should be printed upright Materials:MaterialQuantityPartInsert M38BaseInsert M2.55BaseFlathead M3 x 10mm8Sides, baseRounded head M2.5 x 6mm5RPI, LED mountRounded head M4 x 16mm2Roll, LockBall bearing (Optional)  Shaft OD 12mm, Housing ID 18mm, Width 4mm2RollLED strip (WS2812 or SK6812) + wiringLength needed 0.1m (60l/m)1LED mountRubber pads 10mm4Base Assembly: Base:Place the M3 inserts for mounting the sidesPlace the M2.5 inserts for mounting the RPI and the LED mountMount LED strip to LED mountUse 2x 2.5mm screws to mount LEDsUse 3x 2.5mm screws to mount RPIConnect LEDsMount sides using 8x 3mm screws (The logo side includes the difuser and difuser shield)Optional the support material in the base can be removed to route the cablesAdd the rubber padsRoll:Use the M4 screws to mount the lock to the roll (Optional a ball bearing can be used) When using a ball bearing the roll may unwind itself. If this happens you can tighten the M4 screw or remove the ball bearing.Cooling:Tested with the Raspberry PI 3 B+ without problems. But the board gets pretty hot with the upside mounting position and no airflow. For the model RPi 4 forced cooling probably will be necessary.OctoPrint plugin:Use the excellent  “WS281x LED Status” plugin to control the led strip.Tested with the SK6812W leds. Reduce the brightness to reduce power and extend lifetime LEDs