This is an updated 35mm turntable base for the openscan classic. I found that the file with the rest of the openscan files did not fit the motor included in the kit that I ordered from Openscan. I added a slot on both sides of the base for the female connection on the motor. Before this, the port could collide with the wall before the motor was fully seated. I also changed the locations for the screw holes as they did not fit in the motor before. I also tried it with other steppers, and they all had the same issue with the screw holes not being in the correct location. This new stl corrects both of these issues and makes it so you can actually use the motor included with this kit.