[Lab] Maker Bot Extrusion Issue

[Ryan Stec]

Yeah, I remembered the tweezer from trying it with you way back, but it
really is in the build platform part where it just creates a puddle. It
really only moves the nozzle make 3 or 4 mm jumps and keeps extruding
during this. it creates a series of ABS donuts essentially.

Should I be looking at the Skienforge settings before the gcode build to
rectifiy perhaps. It seems a bit beyond my knowledge base in there!

cheers
Ryan

On Sat, Nov 19, 2011 at 5:47 PM, Andrew Plumb <andrew at plumb.org> wrote:

> Hey Ryan,
>
> When you start a print, it usually moves the nozzle up to Z=+10mm and
> extrudes a noodle to get the plastic flowing, then sends the nozzle back to
> Z=0.
>
> When running from the SD card, it doesn't pause between the noodle and
> returning back to Z=0 to start the build.  You have to be ready with
> tweezers or pliers to pull the noodle out of the way.
>
> 220C should be the right temperature.
>
> Andrew.
>
> On 2011-11-19, at 5:39 PM, Ryan Stec wrote:
>
> > I'm pretty sure the violin print that is on the card is a solid one we
> have used before and it was producing the same problem.
> >
> > Andrew had helped me load ReplicatorG onto my laptop (lenovo thinkpad
> x220, windows 7) and we had generated some code from my file. I tried to
> take another crack at the creation of the gcode as well and seem to produce
> the same result.
> >
> > I am building the code onto the SD card for printing from the card.
> >
> >
> > On Sat, Nov 19, 2011 at 5:16 PM, Paul & Andrea Mumby <
> themumbys at gmail.com> wrote:
> > Yeah that's a good idea. Have a saved "known good" small object already
> done up in gcode, and saved on an SD card somewhere near the machine, so
> you can run that as a quick test (like a 5 min print or something).
> >
> > - Paul
> >
> >
> > On Sat, Nov 19, 2011 at 5:14 PM, Darcy Whyte <darcy at siteware.com> wrote:
> >
> > Is there known working g-code for a small object lying around? That can
> help determine if it's the physical machine or further back in the tool
> chain?
> >
> > Perhaps we should have something small like a button or something for
> validating machine operation?
> >
> >
> >
> >
> >
> >
> >
> >
> > On Sat, Nov 19, 2011 at 4:08 PM, Ryan Stec <ryanstec at artengine.ca>
> wrote:
> > Hey Folks,
> >
> > Am here in the Artengine lab working on the Cupcake CNC but am having
> trouble with my printing process. I seem to get too much plastic coming out
> at the start and have to stop as it starts building a little puddle of
> plastic.
> >
> > It seems like the nozzle is moving too slow or the extrusion too fast.
> >
> > I am running the build from the SD Card.
> >
> > Looking through the MakerBot Site I can find lots of info about not
> getting enough filament, but nothing about too much.
> >
> > Do I have to figure out what the right feed rate is? Is the 220 degree C
> temp too hot?
> >
> >
> > --
> > _______________________________
> >
> > Ryan Stec
> > Artistic Director
> > Artengine
> > 2 Daly Ave.          Ottawa, ON
> > K1N 6E2                      613.686.1941
> > Try your luck with Adrian Göllner at http://artengine.ca/shapeofluck
> >
> > Read the Driving Creativity Blog at artengine.ca/blog
> >
> > Follow us on Twitter @artengine
> >
> >
> >
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> >
> >
> >
> > --
> > _______________________________
> >
> > Ryan Stec
> > Artistic Director
> > Artengine
> > 2 Daly Ave.          Ottawa, ON
> > K1N 6E2                      613.686.1941
> > Try your luck with Adrian Göllner at http://artengine.ca/shapeofluck
> >
> > Read the Driving Creativity Blog at artengine.ca/blog
> >
> > Follow us on Twitter @artengine
> >
> >
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>
> --
>
> "The future is already here.  It's just not very evenly distributed" --
> William Gibson
>
> Me: http://clothbot.com/wiki/
>
>
>


-- 
_______________________________

Ryan Stec
Artistic Director
Artengine
2 Daly Ave.        Ottawa, ON
K1N 6E2          613.686.1941

Try your luck with Adrian Göllner at http://artengine.ca/shapeofluck

Read the Driving Creativity Blog at artengine.ca/blog

Follow us on Twitter @artengine
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