RAMBO Motor Current Settings

[pichuete]

hi guys . i have been trying to reduce the motor noise and vibration as low as i can without skiping steps but i have noticed that going lower than the default "100" on the Digipots value that the stock firmware have as a default my motor hiss on idle and humsss when printing .

have anyone found the "sweet Spot" for this motor to run? at what values you found they work better?

Also does the Rambo board manage the current for both Z motors? or the current actually be splited . for example 185 = 1 A if i put this value on the Z axis . the board sends 1 A to each motor or 0.5 A ? looking at the board theres only 5 Drivers so im guessing that both motors are actually driven by the same driver .

[sniffle]

i dont know that anyone has figured this out honestly

[Schnupp]

Ive left all mine at 100 and have not noticed anything wrong with it. The only motor that gets hot is my extruder motor but its nothing crazy.

[sniffle]

Yeah thats why ive left mine as well... My extruder gets hot but not. burn you hot so i left it alone