[dms-discuss] Printrbot Simple working again; filament

[Ian Holser]

I had come in and mentioned the acetone vapor smoothing.  I have heard that
it works for ABS, but not PLA, which would need something like THF
(tetrahydrofuran)


On Fri, Nov 8, 2013 at 10:51 AM, Braden <dms at dabrado.net> wrote:

> I like this concept, and would favor pooling money for such resources and
> also explaining the need for such resources as one of the ways to ask for
> donations to the space.
>
> I've heard interest in both a filament extruder project and in a acetone
> vapor chamber project during my open hours.  I can't really provide more
> detail though, since it is not my area (I work more in software).  But I'll
> cheer-lead and throw some money in the pot!
>
>   - Braden
>
>
> On Fri, Nov 08, 2013 at 10:32:46AM -0800, Ian Holser wrote:
> > I think filament is best purchased in bulk and the cost split.  I would
> > suggest the space scrape together money for the filament and ask for
> > donations from anyone using it.  Price it such that the donations would
> pay
> > for the filament and a slush fund for future repairs of the printers.  At
> > least for common colors and materials like black pla.
> >
> > Perhaps a filament extruder build would be something worth looking into?
> >
> > Also an acetone vapor chamber for smoothing prints.
> > http://www.youtube.com/watch?v=bcXLJRIKGuQ
> >
> >
> >
> >
> > On Thu, Nov 7, 2013 at 10:48 PM, Tim F <davispcug at yahoo.com> wrote:
> >
> > > November 7, 2013
> > >
> > > Hi gang --
> > >
> > > On Monday night Jim contributed a replacement switching power supply
> for
> > > our Printrbot Simple (the orginal one failed a few weeks ago). Thank
> you,
> > > Jim! The replacement supply is larger and more powerful; I hope that it
> > > will last longer that the original.
> > >
> > > Tonight I checked the power supply and then rewired the connector on
> the
> > > printer to work with the replacement power supply. The new connector
> > > dangles out the back of the printer on purpose, reducing torque on the
> > > connector and cable. It all seems to work properly.
> > >
> > > I also rewound the string drive on the Y axis again -- recent field
> > > repairs at the Davis Flea Market didn't quite have it wound properly,
> and
> > > it slipped off of the motor shaft again. I fixed it up so that it won't
> > > easily come off the motor shaft, and is even more adjustable than
> before.
> > > If anybody ever wants/needs to work on these string drives, perhaps
> they
> > > would enjoy chatting with me about the optimal arrangement and
> adjustments.
> > >
> > > We are running low on black PLA filament for the 3D printers. I chatted
> > > with Mick about that on Monday night. He mentioned that plastic
> filament is
> > > relatively expensive (currently perhaps $50.00 / roll). The group
> doesn't
> > > have much money. I suppose that folks really ought to purchase
> filament for
> > > their own projects; I've asked Mick if he has any favorite vendors
> that he
> > > could recommend. If anybody else has input on this, please, chime in!
> > >
> > > Cheers,
> > > Tim F
> > >
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> > >
>
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