Barn Door tracker remix for 28byj-48 stepper

Barn Door tracker remix for 28byj-48 stepper

thingiverse

Here are remixed files to build this barn door tracker using a much cheaper stepper motor. The cost is under $3, which includes shipping with driver; add Arduino for $2 and you're done. The 28BYJ-48 5volt stepper has plenty of power for this application and works well. I added mounting holes and left Nema17 holes intact as well, making it universal. Other pieces you can get from the original creator, shown in the left menu under "remixed from." I also added a modified small gear model since the 28BYJ-48 has a different shaft. This is for the common version that has a 5mm large diameter and too flat sides. Hence the two holes for a 3mm bolt and nut. This way it's more perfectly centered than bolting from one side, since plastic has some give in it. I added the Arduino code .ino file as well. This uses the appropriately named Cheapstepper library that you need to add to your Arduino IDE before uploading or else it doesn't compile. It is meant to be used with the default driver that comes with those cheapies, which can be seen on a picture. Play with the delay number in the code to get your timing right. I added a 5-minute test shot from my roof. City light pollution is bad.

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