Is there any way to test motors with out having the hot end thermal

3D Printing
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1

Is there any way to test motors with out having the hot end thermal sensor hooked up?

I’m using marlin firmware.

i am currently trying in pronterface and getting an error saying to use M999 to reset.

M999
SENDING:M999
Resend: 1
Error:0
: Extruder switched off. MAXTEMP triggered !
Error:Printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting)

2

Well I went ahead and hooked up the termister for my e3d hotend but its not showing up correctly in pronterface

3

You have to edit configuration.h to suit your board and parts. You can also turn off MAXTEMP warning so you can move the motors.

4

Yea I thought I had the config all setup correctly but I must not.

How does one disable max temp?

5

Did you select “1” for the thermistor ? I don’t remember the exact setting, but just go over them, most are pretty easy to understand.

6

You can also just put a resistor on the thermistor pins. A 47k will put it in line to allow you to bypass the firmware safety :slight_smile: Use at your own risk, don’t heat anything that has that jumper

7

My hot end is on a connector and I have a dummy one which has a 4k7 resistor instead of the thermistor. I plug that in when the hot end is dismantled and I want to do something with the motors.

8

Interesting I might have to do that