Reciprocating rectilinear motion actuator remixed

thingiverse

I'm creating a fine control PCB drill press but want to automate the up-down of the actual drill component. Found this and modified original for my needs as follows: changed gear inside diameter to 4mm and added a place for a square nut to brace the gear and keep it from spinning instead of the original design modified the motor mount to allow for my geared motor to fit and also thinned out the plate to allow more of the pin to stick through. Also recessed the screw holes to reduce interference with the gear, also changed rod size to 1/4 inch modified extended plate rod size to 1/4 inch and added holes to bolt on a plate where I can mount my drill end piece lengthened to same size as extender plate Found I needed to widen each of the rod holes on the extender to allow the 1/4 inch rod to slide smoothly. I'll be adding a z-stop/sensor at either top or bottom of where this is mounted to determine when it's up or down and stop the motor when at the top. At the push of a button the drill motor will start, the actuator motor will turn for full down and up again before stopping when told by the z-stop/sensor then the drill motor will stop. Will also add a potentiometer so the speed of the actuator can be tweaked to just the right speed. All screws are M3, mostly M3x8. Some M3 nuts are hex and some square. Print Settings Printer Brand: RepRap Printer: Prusa i3 Rafts: No Supports: No Resolution: 0.3 Infill: 15% but could do less, gear at 50% but could do less too