Recent content by RandomDigit

Hello every one I recently made a 2 motor spiro with PWM speed control. This thing took me about a day to make but Im pretty happy with it. 4FBnWiTuMDw I used cut up hard drive platters as FS mirrors and the PWM circuit was based off the 555 timer IC

Voltage is the potential difference so if your PSU has say -12v, -5v, -3v, GND, 3v, 5v, and 12v. you can get a lot of different voltages you just pick two rails and find the potential difference, say 5v and 12v and you get 7v. Hope that helps.

Yeah I know I'm feeling the front part of the module that sticks out a bit for a better sense of the diodes actual heat

Thanks for the replies everyone! Surprisingly the heatsink does work pretty well I've had some pretty long duty cycles and this thing hasn't even gotten warm.

Hey everyone kind of new to this forum so thought I would share one of my recent projects. This is my lab style Lpc-815 LASER. It took me about a day to build as I used scrap parts to build it. The driver is a homemade lm317 driver circuit set at 420mAh. The heatsink is from an old computer and...