candolini
Posts: 4
Joined: Wed Mar 02, 2016 12:03 pm

Dual extrusion script help; FF Creator pro

Hoping someone has run into this before - I tried a dual print yesterday and ran into an oozing issue on my left extruder, but only the left. This also would disappear after the first ooze control pass around the outside.

I looked into the posted .gcode, and found it was due to the starting script not retracting the left extruders filament after the wipe. The right extruder has an E-1.0, which is ok as the right is the first nozzle to start printing.

I corrected this by modifying the starting script to add E-12.0's to each extruder before moving to start the print (this is the filament retraction S3D uses by default during tool changes).

My issue now is S3D doesn't consider my E-12.0 in the starting script when applying the first extrusion restart distance. Once it gets going, it knows to apply an E11.5 after the tool change and works great.

Is there any way to get the code after the starting script to apply the correct filament restart distance, with respect to what I enter in the starting script.

Right now, I think the temp fix will be to print a dummy part in the bed corner to get both nozzles through one ooze control path each, before starting my actual part.

Thanks very much - i'm anxious to hear some feedback!
CompoundCarl
Posts: 2005
Joined: Wed Aug 05, 2015 7:23 am

Re: Dual extrusion script help; FF Creator pro

Personally, I just print a skirt. That will get the extruders primed and cleaned off. Then they move on to printing the actual part once they are ready to go.
candolini
Posts: 4
Joined: Wed Mar 02, 2016 12:03 pm

Re: Dual extrusion script help; FF Creator pro

I've started doing this, and it does help a lot. Still get some oozing until the first tool change, but certainly better.

It's unfortunate S3D doesn't apply the standard retraction amount for the 2nd extruder at startup after the wipe. Maybe i'll suggest it in feature requests.

Thanks for the input.

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