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20
Manual
: Grasp the large gear on the extruder and turn it backwards gently. Sometimes the filament will come out
of the print head without needing to heat it up. If it won’t come out, set the print head to about 200
o
C and wait
for it to heat up. Turn the gear in reverse to back the filament all the way out of the tube and extruder. Make sure
you turn off the heater after you’ve unloaded the filament!
Secure the loose end of filament to the spool by routing it through the holes in the sidewalls or use a small piece of
tape. If you do not secure the loose end, it can unspool and tangle itself, which will result in an extruder jam and
failed print.
Lastly, check the feed gear for debris in the teeth. Debris in the teeth will make the gear grip less and more prone
to slipping again. If you see debris, use the supplied toothbrush to clean it out.
Storing Unused Filament
Your filament is shipped in a sealed plastic package with a pack of moisture-absorbing desiccant. This is because all
types of filament will absorb moisture from the air if they are left out in the open for extended periods of time.
When you are not using a spool of filament, we strongly recommend you store it in a re-sealable plastic bag, such
as a Ziploc, with the desiccant pack it came with. This will keep moisture absorption to a minimum.
Leaving filament out for a couple days is not a problem. But you don’t want to leave a roll out in the open if you
aren’t going to use it for an entire week. Filament that has absorbed moisture will not print nearly as well as dry
filament.
Note
: Nylon is more prone to moisture absorption than other types of plastic and should not be left in the open for
any
length of time. Nylon’s printing performance degrades sharply with moisture absorption.
5.4.
Cleaning and Prepping the Bed
Important
: Only use water to clean the print bed! Cleaners like Windex, acetone, etc. will leave a residue on the
glass and adversely affect print adhesion.
Preparing the print bed for printing is very simple! Your F306 uses a water-soluble glue stick to coat the glass and
help objects stick. This has many advantages:
It works for PLA, ABS, and Nylon.
It is easy to apply.
It is easy to clean up since it is water soluble.
It is non-toxic and non-hazardous.
It provides consistent adhesion.
There is no risk of damaging a plastic film laminated to the glass.
It releases easily when cold. (so let your prints cool before you try and pull them off the printer)
Prepping for a Print
With the bed less than 40
o
C and previous glue removed (see below), hold the glue stick perpendicular to the bed
and apply to the bed with parallel wipes. Small gaps between the wipe passes are acceptable, but you don’t want
anything larger than 2–3 mm. The goal is an even, light coating on the glass. For PLA, a single layer of glue is
sufficient. For ABS, 2 layers of glue laid down at 90
o
to each other should be used.
Summary of Contents for F306 Generation I
Page 7: ...7 4 General Info Hardware 4 1 Machine Overview Figure 5 Front View Figure 6 Side View...
Page 8: ...8 Figure 7 Axes Layout Figure 8 Control Board Detail...
Page 9: ...9 Figure 9 Print Head Detail Figure 10 Extruder Cold End Detail...
Page 18: ...18 Figure 20 Filament Fed Across Hobbed Gear Figure 21 Disengaging the Idler Bar Springs...
Page 57: ...57 In general you should be able to get within 1 of the correct flow rate with 3 trials...