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bipsen

Circles incomplete when printing PETG and having long travels between printed elements

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Hi

I am currently using Cura 2.6.0 for slicing, and my Prusa I3 clone 3D printer seem to have a problem when having to draw circles after more than 4-6 cm of travel over the heated bed.

It is as if the filament isn't "ready" when the printing of the circle is started - resulting in only half the circle being printed.

I am printing with PETG, using bed temperature of 75 and hotend 230.

Retraction is 5mm at 70mm/sec

I wonder if there is an option (not yet known to me) to "prime" filament after "longer" travel, in order to make sure, that the circles can be printed without missing parts...

Regards

Brian

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Retractions and PETG just don't work well together. I've tried all sorts of settings in S3D to make up for dripped material by overpriming after retractions, but it never gives good results for me. My solutions have been to create models that need very few retractions, or to set retractions only for 10 mm+ distances, and to increase travel speeds. Or change to a different material

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