From bb6369603e968dd85667b0773f011c9bd6c60c01 Mon Sep 17 00:00:00 2001 From: Keegi Date: Wed, 4 Jan 2012 09:28:30 +0200 Subject: [PATCH] Note overheating possibility of the stepper driver when current is set too high --- src/main/docbook/en-US/parts_of_printer.txt | Bin 43782 -> 43896 bytes src/main/docbook/en-US/parts_of_printer.xml | 2 +- 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/src/main/docbook/en-US/parts_of_printer.txt b/src/main/docbook/en-US/parts_of_printer.txt index eecb668b47054154d68ebf0205a4709dcfc69880..2b7baa2eceeb7e5ed5f896b94803e923a58ef3dd 100644 GIT binary patch delta 85 zcmZp>#`NPF(*~!hx;hM+3K2+@G+AMD*3>zo0Ht{rjsO4v delta 26 icmexyjj8P#(*~!h?0O8E47?0nlM5#+ZoV^hjwk?#CJDFz diff --git a/src/main/docbook/en-US/parts_of_printer.xml b/src/main/docbook/en-US/parts_of_printer.xml index 28b49e3..ebf4465 100644 --- a/src/main/docbook/en-US/parts_of_printer.xml +++ b/src/main/docbook/en-US/parts_of_printer.xml @@ -634,7 +634,7 @@ url="http://en.nanotec.com/steppermotor_animation.html" >RepRap community members have reported StepStick boards with short-circuits in them! Obviously this might destroy both your StepStick board and your electronics board. Before installing a StepStick board always verify with your multi-meter there are not short-circuits on the pins.When stepper motors are in operation and stand still they still use current. For this reason each stepper motor controller has a potentiometer to control how much current is sent to the stepper. If you send too much current you might use more current than is required (and hence increase your electricity bill.)When stepper motors are in operation and stand still they still use current. For this reason each stepper motor controller has a potentiometer to control how much current is sent to the stepper. If you send too much current you might use more current than is required (and hence increase your electricity bill,) or even overheat the controller IC or the stepper motor.For this reason is it advised to close the potentiometer on each stepper motor controller by turning counter-clockwise all the way and then open the potentiometer about ΒΌ th of the way. When you discover one of your steppers does not provide enough torque you can open the potentiometer of that stepper motor controller at little bit further.