![]() ![]() But, the one I’ve ordered is not long enough so till I receive a new one, I’ll just use some kind of wire. ![]() To transfer movement you should use timing belt and a pully. Now I screw in place the step motor on the left support. I’ve screwed in place the 4 pairs of bearings on the slider plate and then add two more pairs of rollers on the middle holes so the plate won’t be able to get out. You could use normal 22mm diameter bearings with a screw nut in between like in the photo below so the two bearings would fit on the metal bar with a gap in between. For the slider, I’ve used some bearings that I’ve got out from old rollers. I mount the side parts and the two metal tubes. With these 3 signals we could precisely control the step motor. Those signals are the enable pin, rotation direction and amount of steps. This module receives 3 signals and will control 4 outputs for the motor coils. We will also need 2 push buttons, one rotary encoder, an i2c LCD module, the Arduino NANO, a 12V DC transformer, the NEMA 17 STEP motor and the A49 88 step motor driver. Next, we have the 3D printed case made of 2 parts, one is the main case and the other is the front plate of the case with holes for the controls. Then we have the main plate with spaces for bearings and a hole in the middle for a camera support. ![]() They both have places for the 3D printed legs with some bumps so you could fix the angle of the leg. Two supports for the left and right side. I’ve used my 3D printers and printed the 3D files using gray and black PLA material with 20% infill and a 0.4 mm nozzle and a layer height of 0.3mm. ![]()
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