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Post by rock75 on Nov 22, 2015 3:38:19 GMT
Anyone order the Openbuilds power supply and have troubles? Just plugged in mine tonight and seems to be DOA.
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Post by librav on Nov 22, 2015 14:36:01 GMT
Is the power input switch on the side of the chassis set to 115 vac
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Post by jhopiv on Nov 23, 2015 0:36:33 GMT
When I got mine it was on 220v. Flip the switch on the side to 110v. After that plug it in and check the output with a multimeter. If it's not 12v turn the adjustable pot till the multimeter says 12v and you should be good to go.
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Post by rock75 on Nov 23, 2015 1:39:46 GMT
Thanks Guys! Got it  |
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Post by animoose on Apr 17, 2016 17:42:43 GMT
I got tripped up by this as well. Perhaps it's worth adding a note to the assembly instructions.
The way it showed up was not obvious for me. I saw the extruder was taking a long time to get up to temperature when I set it manually for 195C, but put it down to not having run PID autotune. But then when printing I saw the temperature fall and the "Cold extrusion prevented" warning kick in. So this was leading me to suspect either a bad thermistor or a faulty heater cartridge. I was only when I measured the PSU output and saw it wouldn't go above 10.5V that I realized what was going on. The point is is that you have it set for 220V when you want 110V, it's not that you get such a low output that the printer fails completely, it's that you get an output level that give you the illusion the power is OK until you need the extruder running.
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