Rack and Pinion Challenge
Posted: Sun Jun 29, 2014 2:45 am
So it has been a couple of months since I completed my leadscrew upgrade to my x-axis and so far it is still working good. I was going to do a similar leadscrew upgrade to my Y-Axis, but my leadscrew supplier, Trinity Labs, has closed their doors. As a result I have decided to try another method that has been interesting me for a couple of months after seeing some positive results on thingiverse. Recently I purchased a small 12' acetal rack and spur gear from SDP/SI. The idea is to hard mount the Y-Axis motor directly underneath the heated bed and design a way to hard mount the rack to the aluminum plate. Then i will use the motor and spur gear to drive the build plate. Does anyone have any experience with this kind of drive mechanism. I have attached a mock-up of my concept. The yellow parts are printed. Basically a mount for the rack I purchased. I plan on using tension pins to hold the rack in the mount. The mount will use the same screws I used to attach the heated build platform.