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Thread: Heatbed output has no voltage
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04-20-2014, 01:43 AM #1
- Join Date
- Mar 2014
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- 4
Heatbed output has no voltage
Hello, i'm trying to wire my heatbed to RAMPS 1.4 to D8 port, but i have problem. That heatbed heats all the time, if i turn off heating, heatbed heats, if i turn on heating, heatbed still heats. Anyone know how to fix it?
thanksLast edited by BikeRide; 04-20-2014 at 02:53 AM. Reason: problem solved, another problem
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04-25-2014, 03:16 PM #2
- Join Date
- Feb 2014
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- 13
I could think of a few possibilities: Software problem: somehow your command does not reach the printer (try another program to make sure). Hardware: this is most likely. Your cable connection (USB) doesn't work properly. Try another cable. It could also be a RAMPS problem; mosfet could be bad. Could also be related to your firmware you have in the arduino.
To be more specific you'll need to come up with more info. I wish you luck!
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04-25-2014, 06:24 PM #3
Check mosfet Q3 to see if it is OK
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