If the PLA is wider than the inside of the tube, no amount of oil will help. You could try reducing the pressure on the feeder so that PLA stays more round I suppose.
Personally I would just throw it away. Or purchase a larger Bowden. A few people have purchased larger Bowden tubes. I don't remember the details.
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3dcase 37
Hi there to,
Indeed I use Glecerin/glycerol for the Soft Pla.
I am no chemist, but as far as I can see, it did no harm to the print.
Saw a video of guy making his own PLA with it.
You need only a dropplet in the tube.
So no harm done I guess.
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