Gingerbread man and woman molds [Cerby's crawlers 05]

by cerberus333, published

Gingerbread man and woman molds [Cerby's crawlers 05] by cerberus333 Dec 7, 2012



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set of molds for ginger bread man and woman
intended for oogoo silicone rubber.
to be cast and made into ornaments.
(oogoo is silicone caulking mixed with cornstarch which hardens in under 2 hours)

these molds have some minor undercuts which
would make removal of rigid casting material impossible (without destroying the mold)


print in ABS
10% infill
.27 slice

mix oogoo (see instructable to make oogoo)

and put into mold.
smooth back or put a wax paper on the back to make a smooth back.

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Which program are you using to make these molds?

 I used sculptris to model the mold cavity positive
( am including the positives in the thing)
i then import the .obj file into truespace5.
I use Boolean subtraction to carve a block with the positive.
Blender can do the same, tinkercad can too fi the positive
doesn't have too many polygons with file import.
but the same principal applies. Openscad crashes when i try to use it for anything with high polygon counts.

Yeah, I hate Openscad as I couldn't get it to go beyond the basics without crashing on me too.  Did you check your STL model for holes, etc??? I can't get a good model to go from a nurbs modeler to stl without them unless I lower the poly count.  I found the sweet spot and really I have to tweak for each model I do (PITA that can take some time) since I despise facets.

 i did check for holes (watertight mesh)
I honestly have not used openscad much. I was using the scripts jason created.
and did a few very simple tweaks to other code to get the feel of the program. it was not useful for my import models.
to be honest, boolean functions often fail on truespace5. I really need to get comfortable with blender. but overall truespace5 for basic modeling is easier to use than many of the programs i see today.

Parametric two-part mold generator for OpenSCAD

Blender I just couldn't like.  It was too complex and too stupid in other areas for me.  Its stupidity is supposed to be its greatest asset and that is that it is cross platform but I will tell you I despise its directory stuff.  Sorry, that part of it is absolute rubbish because I know it could be done cross platform with something I know how to work in called wxWidgets.  So, why they decided to go the route they did I dunno but that was only part of my hate for Blender.  The other is that it follows nothing I am used to like Maya or Cinema4D so I will stick with C4D and I have as I have not installed blender again since 2 months ago (I changed from a HDD to a SDD and had to reinstall everything) and it wasn't worth my precious harddrive space.
Truespace I did like, back in the day, but I don't think they make it anymore which is sad.

 I downloaded truespace5,
and have a serial for it. it is now been made free (at least the last version 7.x was so i am assuming the prior versions are as well. I HIGHLY recomend it. I can't afford maya and i get really decent results with truespace/sculptris/tinkercad in the toolkit
tried sketchup, but it is counterintuitive to me.
booleans are my greatest issue with truespace, and also plastiform does not work in TS5 on my system. i have truespace 3.2 on my netbook and plastiform does work and  I can get some really interesting models using it.
but I can say tinkercad does a really decent job with booleans most of the time, and if you can keep the polys low it is a very nice option.