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08-12-2015, 05:52 AM #1
- Join Date
- Apr 2015
- Posts
- 7
Strange problem with heated bed not reaching temperature
I have a RAMPS 1,4 with repetier 0,91 firmware
My heated bed has been working sorta.
The problem is that I am using a 3mm stainless steel plate for heated bed.
If i put a box or something onto the bed, the printer could heat to 100° C in ~30min.
But when i removed the box, the powersupply could not deliver enough juice to keep it hot, the temperature was falling slowly.
So I have increased the vorking voltage from 12V to 17V.
It works and the bed heats fast, but not past 60 degrees, then the output shuts off and never on again.
I dont get any error reports. All seems to work fine. The same error occurs when I control from repetier host or manually preheat. So the problem must be in firmware.
I dont know where I should look for a problem.
Before the voltage change the printer worked and I could print ABS.
I use 17V for the heated bed only, the rest is 12V (steppers and hotend)
I hope someone have a suggestion.
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08-13-2015, 12:02 AM #2
- Join Date
- Apr 2015
- Posts
- 7
Sorry I can see that I have posted the wrong place.
I have solved the problem.
The mosfet switch got too hot and desoldered itself from the ramps.
I will replace it by a better one or attach a heatsink + fan to cool the entire ramps board
BambuX1Carbon($2k) vs MarkTwo($20k)
05-31-2024, 12:45 PM in 3D Printers (Hardware)