by BrianV | Aug 5, 2017 | Blog
Most (all?) stepper motor driver instructions include the warning “do not connect/disconnect motors while power is applied”. Curious why? A brief-yet-incomplete intro to stepper motors is appropriate. Stepper motors contain several windings. These windings...
by BrianV | Jul 14, 2017 | Blog
I recently assembled 5 PRO 4-axis boards. I’m pretty careful. I follow directions. I am quite familiar with the boards. Only 60% (three out of five for you non-math types) worked first time! Oh the shame. Careful(er) visual inspection revealed the problems: One...
by BrianV | Jun 15, 2017 | Blog
Had an interesting tech support problem last week. The 5 Volt test point measured 4.85 Volts. The test point should be between 4.95 and 5.05 Volts (5 Volts +/- 1%). The output of the LM317HV should be 31.6 Volts, but was measuring out at 30.6 Volts. All the resistor...
