One of the things to be expected while building something as complex as a 3-D printer is problems. Not just "Oh I forgot to plug it in" but "the thermistor is not capable of handling the amperage of the MOSFET in the way it is configured in the code" for example. Here are some of the problems I have run into so far:
Z motors were jumping around making irregular motion when instructed to do a morion. Some research and a magnifying glass revealed a fleck of solder bridging two solder joints under the stepper drivers. With a razor blade the joint was removed, and the Z axis worked.
Motors were not traveling correctly, would go 1mm one direction when inatrucyed, .4mm the other direction. After more research I figured out I missed checking for jumper pins having to do with the stepper drivers microstepping. These pins are crucial at getting the correct distances and proper motor steps based on the G code.
I did over spring break get my LCD up and running as well as Ocroprint setup on my Raspberry Pi with a webcam. This allows me to control my printer from any computer I want to, as well as using my phone. I can control the printers motion, heat up the bed and extruder, and start a print from anywhere with my phone wherever I am.
At this point in the build I am eager to print my first item. Unfortunately there are still more problems to work out.
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