[sudo-discuss] robot has a full-size router mounted on it now

[Jake]

the coil you're referring to in the video of the robot drawing the 
dinosaur was used as a weight to hold the sharpie down in the holder, so 
that the sharpie could write on the paper despite the robot not moving 
exactly perfectly coplanar with the paper on the floor.

when the robot is in pen-up Z position, the pen is resting at the bottom 
of the holder but still not touching the paper.  When the robot moves to 
pen-down Z height, the pen is resting on the paper with the coil's weight 
pressing it down and it's writing.  It was a kluge.

also a sharpie is tapered so it doesn't work very well because it's 
sloppy in the hole, which is in a 3d printed plastic thing i made just for 
holding sharpies.  We need markers that are not tapered.

-jake

On Wed, 20 Apr 2016, Cere Misc wrote:

> Noice!  What's the coil on the top do?
> 
> On Wed, Apr 20, 2016 at 2:32 PM, Jake <jake at spaz.org> wrote:
>       last night we installed a full-size wood router on the end of the sudoroom
>       robot, with a 1/4" diameter endmill, using the metal bracket Elisabeth
>       made.  And we carved a shape into a piece of wood with it.
>
>       if you need to route any wood stuff please let me know.  I can help you do it.  If you make a simple SVG file with the path you want to carve, the robot can follow it, similar to the
>       way it drew this dinosaur with a sharpie:
>
>       https://www.youtube.com/watch?v=pY9v50FBd5E
>
>       -jake
>
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> 
>