This page follows my undergraduate research project in 3D printing. For more information, please visit the wiki page at: BoomBOx
Week of August 12th 2013, PseudoVoid
ROCK DAT BEAT
BoomBOx is the gargantuan 3D printer I have been working on in the university machine shop for the past year. My initial problems were calculating the dimensions of turning a standard open source printer inside out and the latest problem has given BoomBOx its name. Before I could get the up/down axis fully functional, the LCD screen decided it wanted to play a little music on EXP1. In the world of 3D printers, it is not good to ignore your machine while it is screaming. Think of it as a cry for help. After taping the speaker up so I could concentrate, one of the copper wires burnt through on my LCD BUS and I found myself in a smokey situation. Immediate unplug. These are the photos of the problem I encountered. My board is encased in a metal box, but it also has nylon standoffs. There are two possibilities for the burnout- firmware or short. The front of the LCD is the only thing that touches the box and this is the side of the LCD which should not result in any shortage. While it is still a mystery, I have taken to dissecting the pin for historical evidence in the reprap community. |
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The culprit pin
I have narrowed down the pin. If anyone knows the 10 pin mnemonic, kindly share on my blog whether this is the second or the 9th pin. I am not yet able to determine the source of the LCD screams. I have changed the LCD BUS that burnt out but the LCD still makes noise. My thumb nail is touching the upper left pin in the picture on the lower left. (To the left of the groove on the dissembled piece) I have held up the other side of the BUS for comparison. The BUS itself did not have any faults that I could see in the placement of pin to wire. You can see this from the picture on the lower right, where the 'pinch' marks are. Before Burning Man Before the LCD BUS burnt out, I had embarked on a 6 month journey into the reprap world. I was led to discovery of various extruders, filament companies, and bot styles. I have posted a few snapshots from my time researching the topic. I presented many of my findings to my peers, via powerpoint. |
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