![]() These already get warm in normal use at 5 volts so I don't think it's a good idea to run them on 9 volts. Hi saulemmetquinn, You are using a 5 volt motor. Using photos 15, 16, and 17 as a guide, connect the stepper motor's wire to the uln2003 driver case. There is an unfixable error in photo 13, refer to the note in the photo for more information. The connections are as follows: GND > - and VIN > +. ![]() Connect the other ends to the uln2003 driver case. One to the GND pin slot and one to the VIN pin slot. Using photos 12, 13, and 14 as a guide, connect two wires to the Arduino board. The connections are as follows: IN1 > D8, IN2 > D9, IN3 > D10, and IN4 > D11. Using photos 9, 10, and 11 as a guide, fasten the Arduino board to the breadboard with four male to female jumper wires. Its placement does not have to be perfect, but make sure it is close to what is shown in the photo. Using photos 6, 7, and 8 as a guide, attach the mini breadboard onto frame a.stl with double-sided foam tape. Using photos 1, 2, 3, 4, and 5 as a guide, attach the uln2003 driver case onto frame a.stl with double-sided foam tape. Dimensions of the tube are shown in a note on the image. Using photos 13, 14, and 15 as a guide, put 40t/12t and its tube into place. Using photos 11 and 12 as a guide, put 48t.stl into place on tube 2. You may have to use some masking tape on the tube to insure a tight fit with the gears. Using photos 8, 9, and 10 as a guide, insert tube 2, 9t.stl, and a washer into place as shown in the photos. Using photo 7 as a guide, make sure there is a about 2 mm of tubing protruding from the bottom of frame b.stl Using photos 5 and 6 as a guide, screw frame b1.stl onto frame b.stl with 3 4M screws as shown in the photo. Using photos 3 and 4 as a guide, insert the tube into its slot and then put 43t.stl on it. Make sure there is a washer on the tube as shown in the photo. Using photos 1 and 2 as a guide, insert the tube into its slot and then put 17t/11t.stl on it. Using photos 14 and 15 as a guide, screw frame a2.stl into place with two 4M screws. Using photo 13 as a guide, place the part created in photo 11 into the position shown in photo 12. ![]() Make sure the underside of the gear is totally flat with no tube poking out. Using photo 12 as a guide, insert a tube into 48t #1.stl and glue it into place. Using photos 10 and 11 as a guide, place 40t.stl on the tube protruding from frame a3.stl. Apply a small amount of lubricant to the inner tube to insure smooth rotation. Using photo 9 as a guide, take the part you made in Photo 8 and insert the smaller tube installed in Photo 2 into the bottom of it. Using photo 8 as a guide, insert the tube into 60t/12t.stl and glue it there. Place a washer over the tube protruding from frame a3.stl. The screw will come out even if a small amount of glue finds its way onto it. Remove the screws when the glue is done drying. Screw frame a3.stl into place with 2 4M screws. Using photos 4, 5, 6, and 7 as a guide, apply glue where indicated in the photo. The name of each gear is shown in the notes on the image. Using photo 3 as a guide, glue each of the three gears to its corresponding shaft. ![]() Dimensions of each tube are shown in notes on the image. Using photos 1 and 2 as a guide, insert the three tubes into their slots on frame a.stl and place washers over them. Refer to these for specific information.Įach photo has a note in the top left corner that shows which photo it is (i.e.
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