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 Example Inkscape Plot File
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By: Anonymous: tamberg () on Thursday, September 09 2010 @ 05:32 AM PDT (Read 4898 times)  
Anonymous: tamberg

Hi, could someone post an example Inkscape plot file of a non trivial design? Still can't really figure out how a drawing is mapped to the shape of an egg. Cheers, tamberg





       
   
By: dnewman (offline) on Thursday, September 09 2010 @ 06:55 AM PDT  
dnewman

Quote by: tamberg

Hi, could someone post an example Inkscape plot file of a non trivial design? Still can't really figure out how a drawing is mapped to the shape of an egg. Cheers, tamberg



At the cited Google Code site for the Eggbot there is a directory of example SVG files. They are drawn in Cartesian coordinates in a rectangle of width 3200 x H (w x h) representing the 3200 longitudinal (rotational steps; full 360 degrees rotation) and H latitudinal steps achievable with the Eggbot. H can be upwards of 1600 (max steps for 180 degrees). In reality, your northern and southern extremes will have mechanical limits imposed by the shape of the surface you are drawing on.

No special transforms are done in "mapping" these Cartesian coordinates to your egg/sphere/whatever.

Dan


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By: dnewman (offline) on Thursday, September 09 2010 @ 07:41 AM PDT  
dnewman

Quote by: dnewman


H can be upwards of 1600 (max steps for 180 degrees). In reality, your northern and southern extremes will have mechanical limits imposed by the shape of the surface you are drawing on.



BTW, with the beta & gamma versions of the Eggbot, a typical value for H was 1000. Obviously, you can never push H all the way to 1600: the holders for the egg on the Eggbot will prevent you from reaching with the pen all the way to the poles of the "egg" you're drawing on.


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By: Anonymous: tamberg () on Thursday, September 09 2010 @ 08:18 AM PDT  
Anonymous: tamberg

Thanks a lot. Maybe those and future designs can be posted over at Thingiverse.com to share them with othe Egg-bot operators. Cheers, tamberg





       
   
By: Windell (offline) on Thursday, September 09 2010 @ 10:05 AM PDT  
Windell

Yes, I'd like to see "eggbot" listed as a thingiverse tool someday. Smile


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