>>10360294>The chamber does not heat all the pellets evenly at all on mineFirst things first I have come across the same problem with heat distribution. Gooey at the bottom, solid at the top. Unfortunately you cant really change it without modifying the heating element for the injector's barrel section. But the injector should still function despite the wacky heat profile. As long as the bottom heats up the pellets will melt down and feed down the nozzle along with the non-melted pellets compressing them with the help of the injectors manually operated piston...but this is not a quick a process. As you press down and push out the molten plastic the un-melted pellets will take their place and you will have to wait for them to heat up too, so you will need to pace your injections.
>pellets start to burn or get scorch marks when the temp is turned up higherNow I made the first mistake that you did which was to heat the plastic past its melting point to speed up the injection process. But this is the absolute worst possible thing you can do with plastic...I am not over exaggerating. When you heat plastic past its melting point it will begin to break down and emit fumes. These fumes and sometimes even residue are extremely carcinogenic and often linger in their surrounding environment, contaminating it for years. Ever seen the aftermath of a serious vehicle fire and see guys in hazmat? That's because of the burnt plastic, its that dangerous. So while it is temping to turn up the heat, you will only damage the plastic and contaminate your work environment and by extension your body.
