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D20 Renumbered

by PuppyKhan, published

D20 Renumbered by PuppyKhan Aug 16, 2012
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Summary

This is an incremental improvement on the Dual Extrusion D20 ( http://www.thingiverse.com/thing:24663 ) by rplumley. I reordered the numbers so it is a proper distribution for a gaming die. (Opposing sides add up to 21, no consecutive numbers, etc.)
This is my first attempt at editing an SCAD file and trying dual extrusion printing so special thanks, and apologies, to rplumley et al and to AKAMEDIASYSTEM ( http://www.thingiverse.com/AKAMEDIASYSTEM ) for showing me the ropes.

Instructions

This can be used for single or dual extrusion. Ignore the _neg. files if you want the solid color.
This is a derivative work, so it is worth taking a read through the previous objects as I don't repeat their notes.
STLs should be fine as is, and the SCAD files included for further tinkering. You will need the OpenSCAD Bitmap Fonts Module ( http://www.thingiverse.com/thing:2054 ) by tbuser for the SCAD scripts to work.
The number sequence was changed from sequential to a proper distribution by means of a lookup table. (embarrassing, but effective) This also means it is rather simple to modify what is printed on each facet with OpenSCAD. The first table "get_num_digits" has a 0 for single character or 1 for two characters. The other two tables "get_digit1" & "get_digit2" are for the first and second character respectively. "get_digits_old" left in place purely for referencing ordering to display.
Caution, I have not had much success with the second color coming out properly in the Makerbot. If you get it to work, or have a necessary fix, let me know in comments!

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D20 Renumbered by PuppyKhan is licensed under the Creative Commons - Attribution license.

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I really like this, but it is hard to tell between the 6 and 9.

Hi! PuppyKhan and I are printing these with ABS - we haven't tried PLA but I agree that it's likely to be too runny to work.

We've had issues with the second color (the color of the numbers)...inevitably, there is a lag between beginning the layer and plastic actually extruding. I think PuppyKhan had the good idea of printing two at a time - one where color A is the die and color B is the numbers, and the other where co
lor A is the numbers and color B is the die.
We haven't tried that approach yet but we'll update here when we do!

Are you using PLA? That can be really runny when heated. The print only uses a little bit for the numbers and isn't in use the rest of the time. ABS works better but not perfect.

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