Motor holder and detachable adjustable height dust shoe with LED light and USB camera for CNC engraver / mill

thingiverse

This is an upgraded motor holder with detachable dust shoe for small Chinese CNC engravers sold under names such as 'mini CNC router 3018' and '3 Axis 3018 DIY Mini GRBL USB CNC Milling Router'. The 3018 CNC engravers are manufactured by multiple companies, so you may need to make adjustments depending on your machine. I tested it on one unit, but assume compatibility with 2418 CNC engravers using a 775 motor; however, confirmation from an owner is required. These Chinese machines aren't the best CNC machines available, but they can be a cheap entry into the world of CNC and serve as a fun toy for responsible adults. The stock motor holder simply holds the motor in place, while this upgraded version offers additional features: * A dust shoe with adjustable height (attached using magnets) * An LED light source * A USB camera (replaceable by a laser pointer or cross with adjustments) I printed my parts using white PETG (20% infill) except for the LED ring holder, which was made from translucent PETG. For assembly, refer to the provided images. I glued the magnets, USB camera, endoscope holder, and LED holder in place using superglue; ensure perfect alignment before doing so. Additional materials needed: * 4 M3*25mm bolts * 4 M3 nuts * 6 10*10*5mm N52 neodymium magnets * A 200*26mm piece of transparent door seal * An LED light source with a switch and power socket * Power supply * Super glue * Air hose (32mm OD) * USB camera with a 7mm head The dust shoe can be used without an LED light source or USB camera, with a plug to replace the air hose if not needed. Attach a rubber band to the knobs on the upper and lower parts of the dust shoe for constant height if desired; I've kept this feature in case it's necessary.