i´m a product designer and i wanna build a professional 3D zoetrope by myself. Unfortuntely im missing the expert knowledge for chosing the electronic components. I´d be very happy if i´ll get some help here in the forum. For understanding, here a video with the desired effect.
(https://www.youtube.com/watch?v=Qx2i9RYmsoo). For my application i need a speed of 1 turn per second, with a strobe speed of 25 turns per second. The 3D-Object itself wont be that heavy (f.e. ~500g). Thats why i guess the stepper doesnt need to be incredibly strong.
The whole construction need to be quite resilient to withstand daily power on/offs and an overall lifespan of around 2 years. After the research, my structure looks like this: A stepper with driver gets connected to an external power supply (12V). This stepper drives a potters wheel with bearing through a cambelt. On top of the wheel the 3D object is placed. With the arduino circuit i want to control the speed of the wheel and the strobe effect via two potentiometers. Above the object is an led stripe (12V, ~10W) attached, which is also controlled by the arduino, making it blink.
At the moment i got it running with a stepper from an old scanner (M42SP-13NK, 12V, 600mA, 4,2Ohm/Phase), together with the H-Bridge L293D (4,5-36V, 600mA) and a power adaptor (12V, 1250mA). It also works with the speed controlling by a potentiometer. But the L293D gets really hot, because (i think) the stepper or the power adaptor is too strong. So i need a different combination of stepper, driver and power supply.
Therefore the question, which components you guys would recommend for my utilization? Especially the stepper needs the strength to power up the wheel and the 3D object to the appropriate speed. Which power supply do i need to provide enough for the motor and the leds together?
Do maybe these parts fit better?
- Stepper: Nema 17, 17HS192004S1 (59Ncm, 2.0A/Phase, 1.4ohm/Phase)
- Driver: DRV8825 (8,2-45V, up to 2,2A/Phase, current regulation)
I hope you guys are also willing to help a newbie