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Rotary

Dormant
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Everything posted by Rotary

  1. Ok thanks! I'll try that tomorrow, when i have the time. All the 20x20 hollow cubes look like they are not straight. The layering is fine etc, but something about them looks wrong. Also, when looking from the front, the right hand side front corner of the build plate is seemingly higher than the left side after levelling. So high, that the adjusting screw almost pops out any minute. I'm still waiting for the new hot end fan to arrive, so i can go on and test that the 5V outlet on the center of the board gives power. If it's dead, i will need to find a way to get power for the fan somewhere else.
  2. Thanks gr5! I ordered a fan from UK that is made for RC cars. I will test the output from the board with that and then get back to you about it. I live in Finland, so shipping will be more tho. I've done a 2 hour print without the fan now, and haven't had a problem (yet) Still playing around with the temps and other settings. I'm so new with this. It seems like the printer was assembled wrong from the factory, as the guy i got this from, has only used it slightly and i know for sure that he hasn't opened the printer and swapped the connector for the fan to the 19-24v pin, where it was connected when i opened the thing. One weird thing is the front right corner of the machine, that seems to be about 5mm off the table top. I measured the side panels and the bastard is about that 5mm shorter than the other side panel. I wonder why the other guy just accepted that when he got the printer in the first place
  3. The side fans are working great! It's the smallest fan in the center that cools the nozzle that buggers me. I connected the connector to the center of the mainboard, that was fitted to the side of the board to the pin that says "19-24v". I tried to get a voltage reading from the connector on the center, and the whole UM2 shuts down for as long as i keep the wires connected to the multimeter. Then i connected the wire back to the side of the board, where it was in the first place and it reads around 25 volts. I just wonder, how in the world could the small 25mm fan ever take that kind of voltage.
  4. Hi guys! I just got the UM2 from a friend to use. I found out that the infamous print head fan is not working. I checked the wirings....even took off the whole connector and joined the wires together. I found that before doing that, the fan had like 5% life in it. It turned like a a 1/4 turn from time to time and then stopped totally after i had played with the wires for a while. I took the mainboard cover off too and checked, that the wires are all attached. Now.... Is it black and red wire coming from the print head supposed to connect to the edge (facing the screen) of the board? Was it 19-24V or so? The Yellow-Green wire goes to the pwm connector next to the led connector. What's the 5V fan connector in the middle of the board for? I would think that, the Black-Red wire from the head would go there, but am I somehow mistaken here?
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