Something weird has started happening with my MaxV2 and e3d-V6 hot end (purchased fully assembled). When I turn on the hot end by itself, my multimeter is reading 10.04v to the hot end. This seems low to me (my PID Drive Max is set at 255), but I didn't check it before when it was previously working fine. It is enough to bring it up to the 230 I need to printing ABS.
However, as soon as I turn on the bed to heat, the hot end temperature drops to 215 or so and won't go up. The multimeter reading then shows 9.1v to the hot end. Does anyone have some pointers as to where to check to figure out why the voltage is no longer sufficient to bring the hot end and bed up to temperature at the same time?
Low voltage to hot end
-
Qdeathstar
- Printmaster!
- Posts: 622
- Joined: Wed Apr 13, 2016 7:42 pm
Re: Low voltage to hot end
What voltage to you get at the power supply when the wires at the hotend read 9v?
-
Tincho85
- Printmaster!
- Posts: 659
- Joined: Sun Nov 03, 2013 12:27 pm
- Location: Buenos Aires, Argentina
Re: Low voltage to hot end
You made me check, 11.9vDC with the printer working.
9vDC seems very low.
Do as Qdeathstar said. If you get +/- 12vDC there, keep following the connectors until you find where the voltage drop is.
9vDC seems very low.
Do as Qdeathstar said. If you get +/- 12vDC there, keep following the connectors until you find where the voltage drop is.
Martín S.
Re: Low voltage to hot end
Figured it out while I was typing my reply. See bottom for solution. Thanks everyone!!
Okay, I made a chart to help me out. Looks like my power supply simply isn't putting out enough power. This is the stock PS (model number appears to be "KL-350-12". Anything we could have done to cause the power supply output so little?
FROM PS
----------
Neither - 11.05v
Hot End - 10.22v
Bed - 9.9v
Both - 9.6v
At RAMBo
-----------
Neither - 11.05v
Hot End - 10.15v
Bed - 9.4v
Both - 9.1v
Heat 0
----------
Neither - 0v
Hot End - 10.05
Bed - 0v
Both - 9.05
Solution:
I never really considered the power supply might be the problem, but from my chart it had to be. I a little searching on this forum brought me to http://forum.seemecnc.com/viewtopic.php ... end#p82223
where someone was discussing a similar problem Jrjones suggested checking the power supply input voltage switch, and sure enough, mine was set to 230. My son is the one who assembled the printer, and I am the debugger. Seems I get to go explain the difference between 110 and 220. Glad it was something simple to fix and thanks again for the assistance!
Okay, I made a chart to help me out. Looks like my power supply simply isn't putting out enough power. This is the stock PS (model number appears to be "KL-350-12". Anything we could have done to cause the power supply output so little?
FROM PS
----------
Neither - 11.05v
Hot End - 10.22v
Bed - 9.9v
Both - 9.6v
At RAMBo
-----------
Neither - 11.05v
Hot End - 10.15v
Bed - 9.4v
Both - 9.1v
Heat 0
----------
Neither - 0v
Hot End - 10.05
Bed - 0v
Both - 9.05
Solution:
I never really considered the power supply might be the problem, but from my chart it had to be. I a little searching on this forum brought me to http://forum.seemecnc.com/viewtopic.php ... end#p82223
where someone was discussing a similar problem Jrjones suggested checking the power supply input voltage switch, and sure enough, mine was set to 230. My son is the one who assembled the printer, and I am the debugger. Seems I get to go explain the difference between 110 and 220. Glad it was something simple to fix and thanks again for the assistance!
-
Eaglezsoar
- ULTIMATE 3D JEDI
- Posts: 7159
- Joined: Sun Apr 01, 2012 5:26 pm
Re: Low voltage to hot end
I am glad it turned out to be something simple. Great troubleshooting!
“ Do Not Regret Growing Older. It is a Privilege Denied to Many. ”