Hi Peter, thanks for the reply.
Ah I meant phase instead of coil. In my understanding if I apply microstepping, both coils with be activated simultaneously at moments. Thats why I thought I might have to half the amperage on the driver. But I understand now that thats not the case.
But... To make it more confusing, if I look at the datasheet, it actually does say 4A
per phase... Which is kind of contra of what I just learned...
This is the motor:
https://www.reichelt.nl/nl/nl/stappe...29320.html?r=1
It's indeed 114mm long
And this is the other one:
https://www.reichelt.nl/nl/nl/stappe...29323.html?r=1
76mm, correct.