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My Hotend Stopped Working… Oh NO (Solution Found)

Posted: Thu Mar 20, 2014 1:56 am
by Christian79
I started my evening with my normal request for the printer to "Preheat ABS". Everything went fine and the MAX came up to temp in a few minutes. The trouble started when I was ready to begin my print and noticed that my hotend was cooling off even though it was being commanded to 240C. After I tried the trick that all Microsoft users know (I restarted the MAX….. LOL) I realized I had an issue when the problem persisted. So I grabbed my multimeter and thankfully found that I had no continuity (A.K.A …. open circuit) from the hotend to the Rambo on the positive side of the harness. I started at the hotend and worked my way back from there. No obvious break was found until I tugged on the hotend harness and the wire came loose. The wire actually broke inside the insulation and the short was enough to cause my issue. I was supprized this happened since I went through a decent amount of effort to insure the cables were secure and did not bind, apparently I did not try hard enough. In any event I fixed it (see pics) but will be changing the heating element and thermistor out later this week to the 40W cartage and screw in thermistor.

PS I wish I knew why these pics show up sideways on the previews but correct if you click on them. (Taken with an iPhone)
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photo 2-3.JPG
photo 3-3.JPG
photo 4.JPG

Re: My Hotend Stopped Working… Oh NO (Solution Found)

Posted: Thu Mar 20, 2014 8:53 am
by Jimustanguitar
Christian79 wrote:PS I wish I knew why these pics show up sideways on the previews but correct if you click on them. (Taken with an iPhone)
There's a tag in the metadata of an image that specifies its orientation. Apple and Microsoft both say that they are handing it correctly and it's the other one that causes this problem :) Happens to me all the time.

If you post your images somewhere like Imgur, there isn't any ambiguity on this and they'll show up correctly.