Also, which 400W powersupply did you use? Some PC powersupplies say 400W, but only deliver 150W on 12V.
I've been printing with PLA today just to get some printing experience under my belt. The printer is working very well on the standard power supply as I was able to get some belt tighteners and a new fan shroud printed and mounted to the machine. Liking Netfabb, Cura and PrintRun. I'm getting excellent resolution and great looking prints.
Attached are some pictures regarding the heated bed I added. I used 12 gauge silicone insulated wire on the heated bed, however, the terminals on the shield are too small to accept the large cables, so as you can see in the attached picture, I spliced in some 16 gauge wire in the last few inches. They are soldered and properly insulated at the joints. The resistance is exactly 2.0 Ohms up to the heated bed circuit board. The power supply was tuned down to 22V (the lowest it would go), so that would be 11 amps load if I calculated that correctly.
I had a picture of the cable from the power supply to the UM, but apparently 4 attachments is the maximum for this forum. It is simply a 16 gauge dual conductor cable with a type N DC power connector soldered to the end with heat shrink tubing. It plugs into the standard power port on the UM. It is open on the other end where I connect it to the power supply screw terminals for positive and negative.
Let me know if you need any additional details. Hopefully the pictures are clear enough to see where I connected everything.
I see the views on this thread going up, but no responses. I'm interpreting that to say that I hooked up my heated bed correctly despite blowing up the power supply. Perhaps the power supply was simply not up to the challenge of a real load.
- 2 years later...
I'm sorry I can't help you but I'm dealing with a similar problem, so I post it here.
The recent Ultimaker 2 Go I used the first time yesterday doesn't turn on when I connect the power supply to it.
I suppose the problem comes from the power supply itself : its diode doesn't light on in a continous way and blinks in blue with a little noise.
What's wrong ? Contact failure inside the chargeur ? How to fix it ?
Thank you all for your help.
pictures and schematics about your wiring might help to pinpoint what went wrong
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