mini drill press

-a miniature drill press, I designed in order to minimize the cost without sacrificing much of the function. -it's compatible w\ 100W(actual 47) universal sewing machine motor, 629zz ball bearing, M10 fine thread shaft & 10mm chuck -total cost $20, this may vary due to pricing experiments showed results of drilling holes up to 18mm in wood, 8mm in AL, 4mm in construction steel. -the clearance between the slider assembly and the pillars (0.2 in the files) should be adjusted depending on the LASER cutter machine. -the M10 fine thread bolt will be industrial made, which means it's OD would be around 9.5mm, this will need some filing before assembly.