User manual

89
e)AdjustmentoftheMotorDriver
Beforerstuseoftheprinter,the4motordriversmustbereconciled.Thisisdonegenerallyatrstbycomparingthepotentiometer
onyourcontrollertotherespectivescreen.Finally,thenesettingsaremadewithadigitalmultimeter.Thisshouldbeabletomeas-
ure 300 mV and 500 mV as precisely as possible.
This subchapter is only relevant for purchasers of the maker construction kit, since the motor drivers in the preassembled device
have already been reconciled in production. Owners of the preassembled device can therefore skip this chapter. It is, however also
possible that the motor drivers need to be adjusted later.
Generalsettingofthemotordriver
GenerallyadjustthepotentiometersofthemotordriversforX,Yand
Z, as illustrated.
Usetheattenedsideofthepotentiometer(blackbar)forreference.
Generally adjust the potentiometer of the motor driver for the infeed
motor as illustrated.
Usetheattenedsideofthepotentiometer(blackbar)forreference.
Finesettingofthemotordriver
Connect the printer to the power supply.
Use a digital multimeter between the soldering point marked with a
minus and the dial switch on the potentiometer marked with a plus.
Set300mV±20mVeachforthemotordriversX,YandZ.
Set 500 mV ± 20 mV for the drivers of the infeed motor.
Attention!Particularlyobservethatyoudonotcauseanyshort
circuitonthePCBwiththemeasuringprods!
Thismaycauseirreparabledamage.
Minus
Plus
X,Y,Z = 300 mV ± 20 mV
Ext. = 500 mV ± 20 mV