Topic: Automatic extrusion heater not working
Recently, a buddy of mine, purchased a solidoodle 3, and immediately began tinkering with it. A few 3d printed upgrades and some tuning of the PID loops, and we had a working printer. He recently left, leaving me in charge of the printer. Upon his departure he told me that I have to manually heat the extruder myself. So, to specify, when you tell the printer to start a job, it will attempt to heat both the extruder and the bed. In Repetier, both of the lights are on, saying that both are being heated. When I look at the temperature curve, the bed is heating up but the extruder is not. There is no power on the bottom graph and the temp remains constant. So, I cancel the job and manually tell the bed and extruder to heat. Then, like magic, they both heat up. But, when the extruder reaches 190c, it stops responding to manual stimuli. As soon as it drops to 189, I hit the heat button, and it starts heating until it overshoots into the 190's or 200, and stops responding. SO, once the bed is finally heated, I overshoot the extruder (manually) to about 200c, and then start the print. The program starts, and as the extruder cools, the program tells it to heat, and it listens. This is, as long as teh extruder is up to temp. What's the deal? It wont heat automatically,and it is hell trying to get it to work. Is there a code that controls this? Or is there any G-code that I can tell the machine to go strait to this temp before printing?
