I am at a dead end with my knowledge of fixing my 3d printer. It has been 2.5 months of trials and errors to no success. Let me tell you the short story of how my 3d printer broke:
It started with a nozzle shearing off into the heater block one night when I was fixing a filament jam. I eventually disassembled everything and in the process destroyed both the heating element and the thermistor, and then proceeded to ruin the heater block when trying to drill out the sheared off nozzle.
So weeks go by and my new parts come in the mail. I get a new thermistor, heating element, heater blocks, and nozzles. After I install the new parts, I power up my makerbot, and the thermistor wire starts smoking. I turn it off. Oops too late. I’m pretty sure I fried my motherboard, because from then on, the heating element error comes up, something along the lines of “heating error, heat not detected, check wiring”. So I get ANOTHER new thermistor, and try it. This time, the wire did not overheat, but I still get the same error.
SO I buy a new mbot mightyboard (same motherboard that was in this makerbot when i bought it secondhand a year earlier). I get the same model from this link, gen 1 style:
After receiving the mightyboard, I hook everything back up, all new parts. And everything starts up fine, no errors after waiting 10 seconds or so, so I turn on the heater. It starts and 20c and goes DOWN to zero. From then on, it just says 0c whenever I try to heat up my printer.
I’m starting to think I may need to buck up and buy a new printer.
Help me! I don’t know what to do! Is my 3d printer beyond repair?
EDIT: After all the thoughtful responses, help, and answers from this forum, I still was having heating issues and thus lots of jams. Basically zero good prints were happening. I contacted Mbot directly, and a helpful woman named Robin came to my rescue. She sent me the below message:
Your 3D printer should be 24 V.
I suggest you reinstall firmware. You can download firmware from this link http://1drv.ms/1TnrvRh andfirmware install instruction http://support.mbot3d.com/hc/en-us/articles/205932130-MBot-Grid-II-Reinstalling-firmware-by-USB-Cable
All is well (other than the pause and then continuing in the wrong place, rendering pausing prints useless for now on)