Xorgeo wrote:Today, I have not had any Polyflex printing success.
The main problem has been that the filament gets jamed inside the print head, because it bypasses the feeding tube. I disassembled the print head and loosened the set screws holding the feeding tube and pushed the feeding tube closer to the knurled feeding cylinder. This seems to have helped to reduce the number of jams, but they are still occurring. I think that the feeding tube could be redesigned to be longer such that the filament has less room to get buckled-out pass the feeding tube.
Another problem has been that the extruded filament has not been adhering well to the heated bed. The bed temperature seems to have little effect on the adhesion. I've tried cleaning the bed surface with isopropyl alcohol, which did not help. I've also tried printing with and without a raft, both have had the problem.
The other problem is that the extruded filament tends to get balled up rather than laying flat. I've tried increasing the temperature and lowering the speed, however the problem persists. This problem could be related the adhesion problem described above.
Has anyone had PolyFlex printing success?
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