PCB Drill Press Stand (with LED light)
thingiverse
This is small neat drill press stand designed to use laser printer engines widely sold on ebay/aliexpress. This project based on http://www.thingiverse.com/thing:144333 by Mark Benson design with next improvements: Designed for engine body sized L=35-60mm D=30mm Shifted base hole to center drill according new motor diameter Added 3x 3mm super light LED holders focused on drill working area Added PCB with voltage regulator and connector for standard notebook power unit (which is used for drill and light). This can be easily changed on any power source up to 24v (only connector should be changed in this case) Added holes in slider to mount PCB Added hole on left side of fixed sliding wedge for balancing spring/rubber. Bill of Materials Mechanics ABS or PLA filament Drill chuck M5 Threaded rod (about 110mm) Threaded rod M8 (about 95mm and 80mm). One is for stand, second is for gear and fixed slider. 6x M8 nut, nyloc (better 8x for stand tightening) 4x 8mm washer 9x M3 18mm bolts 10x M3 nuts 6x 3mm washers 6x 3x12mm screws Electronics Motor from printer with body diameter 30mm and length between 35-60mm Female-Female du-pont wires 10cm (6x) 3x LED 3mm White 2.54mm 2-wire connector Jack plug (diameters must match your notebook power unit connector) Notebook power unit 2x3 pin header male LM7805 (or LM7812) voltage regulator 0.1uF and 0.33uF capacitors 3x 100 Ohm resistors (or 390 Ohm if LM7812 used) Prototype Board or etched PCB Instructions Overall, it's pretty clear from images and renders how to asemble it. The only moment, is that you need to fix LED inside their mount hole by hot glue gun. Just small spot on each will suit (and it will be easy to remove when needed just apply hot gun needle on that spot). Second moment is that you need to put M3 nuts instead of washers between PCB and a slider. This need to allow bigger space between board and slider for solder joints and SMD components. PCB in Eagle format and more images/details on https://github.com/solival/PcbDrillStand
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