We are printing a small 4”x4” enclosure for a PCB we manufacture using a FlashForge Guider II with Inland 1.75 ABS filament. Our printer makes about eight complete boxes per week. Admittedly not a high volume play… but it’s all we need for now. The attached image shows what I’ve been pulling out of the extruder after the ABS flow stops in the middle of a build. Something happens to jam the filament in or above the tube that guides the filament into the hot zone of the extruder. The print runs continue even though nothing is being built. It doesn’t happen too often but when it does there’s an ordeal that I have to go through to get at the guts of the print head and then time soaking the head and tube in acetone to get the ABS dissolved... it’s a little time consuming.
What I’m wondering is if this is a filament quality control issue?
Is there an adjustment that needs to be made in the hot zone?
Does the plastic tube that feeds the filament wear out?
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