Getting sound but no movement out of Nema 17 November 25, 2014 08:53PM |
Registered: 9 years ago Posts: 53 |
Re: Getting sound but no movement out of Nema 17 November 26, 2014 10:34AM |
Registered: 10 years ago Posts: 869 |
Re: Getting sound but no movement out of Nema 17 November 26, 2014 11:06AM |
Registered: 9 years ago Posts: 53 |
Re: Getting sound but no movement out of Nema 17 December 19, 2014 08:49AM |
Registered: 9 years ago Posts: 54 |
Re: Getting sound but no movement out of Nema 17 December 19, 2014 01:45PM |
Registered: 10 years ago Posts: 869 |
They control the microstepping level. For A4988 stepper drivers like step sticks and pololus, no jumpers means full steps while all 3 jumpers means 1/16th microsteps (dividing the full step into 16 smaller steps by varying the coil's magnetic fields slightly). There's also configurations for 1/2, 1/4, and 1/8. Other steppers may support higher levels of microstepping.Quote
yoUmake-3d
what do the jumpers do under the drivers? Do all 3 always need to be installed?