Which pot do I turn to increase voltage

[JustinSB]

Hi, I need to increase the voltage on my extruder, as it keeps on skipping. I have cleaned the nozzle, checked the feed & done all the other recommended things. All that I have left to try is to increase the voltage. I have a Pro W with a GT2560A+ board & one extruder.

The GT2560A+ takes 5 A4988 stepper drivers, 3 for X/Y/Z axis, and 2 for extruders - & on my board I have a row of 5 sockets, only 4 of which are filled. However, I can't find anything in the Wiki or the forums which tells me WHICH A4988 stepper driver is which.

Can anyone tell me please, or point me to the place in the documentation which explains it. Thanks.

[William]

You should refer to this picture

A4988测量方法.png (132.58 KiB) Viewed 8608 times

A4988调节方法2.png (206.02 KiB) Viewed 8608 times

[JustinSB]

Thanks William, but I know where the pot is on the A4988 Stepper Motor Driver.

I just have a choice of FOUR A4988's to choose from, & was asking which one is the one that runs the extruder - as that's the one that I need to change the voltage on.

[William]

You can refer to this picture

GT2560A+.png (2.04 MiB) Viewed 8580 times

[JustinSB]

Thanks William, this is exactly what I was looking for. You're brilliant.