Egg-Bot
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TeamTeamUSA
Oct 14, 2010, 3:50:43 AM10/14/10
to MakerBot Unicorn
I don't have the bandwidth, but has anyone thought to re-engineer the
Unicorn along the Egg-Bot design‽
It uses a similar yet simpler mechanism to the Unicorn, and eliminates
the need for a linear slide without sacrificing accuracy:
http://evilmadscience.com/images/emsimages/eggbot/desc/2_350.jpg
http://evilmadscience.com/images/emsimages/eggbot/desc/11_350.jpg
Go!
=ml=
Unicorn along the Egg-Bot design‽
It uses a similar yet simpler mechanism to the Unicorn, and eliminates
the need for a linear slide without sacrificing accuracy:
http://evilmadscience.com/images/emsimages/eggbot/desc/2_350.jpg
http://evilmadscience.com/images/emsimages/eggbot/desc/11_350.jpg
Go!
=ml=
Matt G
Oct 14, 2010, 8:21:29 AM10/14/10
to MakerBot Unicorn
Hmmm. I think for the visual artist, the way that the Unicorn does
things is what allows for the more natural hand. The Eggbot is awesome
-- and I very much want to work with one -- but with the Unicorn, the
combination of the slight give to the carriage placement and the
gravity-driven drop of the pen tool allows for the slight variation in
lines that is the secret to why the Unicorn draws more human-
illustrator-like drawings than the typical pen plotter. If this
plotter was moving a heavy pen tool instead of the platform, I'm not
sure the ways in which the pen "pulls" a bit this way or that would
work so well in the tool's favor. Also, you can stipple like crazy
with a Unicorn (especially if you use one of those Micron or Staetdler
0.3mm pens that survives this process better) which is a huge benefit
of Will's approach to the design.
I keep thinking that adding a stage of adjustment to control
"tight" (machine-precision) vs "loose" (hand-sketch/"expression") lock
between pen and z-stage might be worth an effort even though that is
adding more complexity to the design. I think creating a new Unicorn
would be very cool: especially if thinking in terms of what drawing
effect you are going after. I've been sketching ideas for revisions to
design -- and hope that lots of folks try lots of stuff!
Matt
things is what allows for the more natural hand. The Eggbot is awesome
-- and I very much want to work with one -- but with the Unicorn, the
combination of the slight give to the carriage placement and the
gravity-driven drop of the pen tool allows for the slight variation in
lines that is the secret to why the Unicorn draws more human-
illustrator-like drawings than the typical pen plotter. If this
plotter was moving a heavy pen tool instead of the platform, I'm not
sure the ways in which the pen "pulls" a bit this way or that would
work so well in the tool's favor. Also, you can stipple like crazy
with a Unicorn (especially if you use one of those Micron or Staetdler
0.3mm pens that survives this process better) which is a huge benefit
of Will's approach to the design.
I keep thinking that adding a stage of adjustment to control
"tight" (machine-precision) vs "loose" (hand-sketch/"expression") lock
between pen and z-stage might be worth an effort even though that is
adding more complexity to the design. I think creating a new Unicorn
would be very cool: especially if thinking in terms of what drawing
effect you are going after. I've been sketching ideas for revisions to
design -- and hope that lots of folks try lots of stuff!
Matt
mrkim
Oct 17, 2010, 12:07:14 AM10/17/10
to MakerBot Unicorn
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