First print after no activity =blocked head and chewed filament.

So twice now after not printing for several days, I have notice that the filament jambs in the hot end and the extruder chews into the filament without pushing it into the hot end.
Should I be removing the filament If I'm not going to print for several days?
Prusa i3
ABS Filament

No need to remove filament after use, pretty sure nobody does this.

Post more about your machine like temperatures you use and what hotend.

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tmorris9
No need to remove filament after use, pretty sure nobody does this.

Post more about your machine like temperatures you use and what hotend.

Prusa i3
Bulldog lite extruder, 0.4m nozzle, Hexagon hotness @ 230c
Hotbed @ 100c

Just to clarify: You have a fan on the hotend cooling the ribs? And after a print job you let this fan
running until you hotend reaches low temperatures? If you switch of the fan, before the hotend
cooled, it could still heat up the ribs enough, to melt the abs in the normally cooled zone, which
would lead to a big blob, that will not be heated the next time, because your fan will be switched
on again on the start of the next print.

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Prusa i3 Rework (from Replikeo.com) & original Prusa i3 MK2 (from shop.prusa3d.com) << the MK2 definitely is worth the higher cost!
Print Troubleshooting Guide // Visual troubleshooting guide

Yup, printer left on till all fans stop.

Did you try to heat the nozzle up a bit more for the first layers? And when are your fans switching off btw, at which hotend-temp?

Edited 1 time(s). Last edit at 02/01/2015 08:50AM by Ano.

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Prusa i3 Rework (from Replikeo.com) & original Prusa i3 MK2 (from shop.prusa3d.com) << the MK2 definitely is worth the higher cost!
Print Troubleshooting Guide // Visual troubleshooting guide

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Ano
Did you try to heat the nozzle up a bit more for the first layers?

Nope didn't think of that let alone know how too. It heats up to 235 sits there then drops to 232 and starts printing.

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Ano
And when are your fans switching off btw, at which hotend-temp?

That I don't actually remember but today printing out a duel extruder head so it hasn't had the time to chill.
Mind you, its sat at the rear of the house which has bad heating.

It should be possible to change it under filament settings in slic3r.
Or perhaps change the line #530 in marlin.

#define ABS_PREHEAT_HOTEND_TEMP 240

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Prusa i3 Rework (from Replikeo.com) & original Prusa i3 MK2 (from shop.prusa3d.com) << the MK2 definitely is worth the higher cost!
Print Troubleshooting Guide // Visual troubleshooting guide