Bender Bendie Mold set (Cerby's crawlers 01)
by cerberus333, published
a set of molds for making a bendie of the character 'bender' [futurama] using oogoo (oogoo is silicone caulking with cornstarch which hardens in under 2 hours)
I had been experimenting with printing molds. I then saw jasonwebb posted his openscad scripts for making molds http://www.thingiverse.com/thing:31581
While I am not using openscad, Jason mentioned oogoo which was huge. I have been experimenting with it, and it is GREAT! it can be molded in ABS without any release agent, hardens fast, is easilly colored with oil paint. I LOVE it! I will be making a bunch of molds with oogoo as the intended casting medium.
My thanks to Jason for introducing me to oogoo and inspiring me to publish some molds.
I am still testing but thought this was one that might be popular for the holidays
(fun project to do with the kids)
the bender molds are presented as 3 files
bendbendy.stl has both halves as one stl
to make sizing and printing as one unit.
It is a complete mold set [two halves].
I also have the 2 halves as separate molds for those
who want to size it big. bendbend1 and bendbend2.
the 2 separate molds should be sized the same for proper casting.
I also included a stl of the cast model for reference, or if you want to just print one.
[The BendBend3.stl would no doubt need support to print].
I print in ABS for the molds, I have not tested oogoo in PLA.
I used a 10% infill and the finer a slice the better.
Also i have found that acetone wash on the mold cavity
makes a smooth surface which looks great on the castings.
the holes thru the corners of the mold halves are for alignment, use a nail
or other rod to align the halves when press molding.
casting process: fast cast:
mix your oogoo and pack both of the mold halves
place copper wire in the center of the arms and legs
for the arms i make one wire hand to hand thru the torso.
to center the wire place a few beads on the ends and middle of the limbs
(size of beads depend on the mold size and wire size)
the end of the wire should be twisted back in itself to make a small loop
which will not have a pointy wire to poke thru the hand.
for the legs again go foot to foot (make a extension into the body a bit to help
anchor the wire) using beads to keep the wire centered. Loops on the ends
in each foot.
once the packed halves are ready to be merged
i use nails in the 4 holes to align the sides.
and c-clamps to squeeze the 2 sides together and hold it for the curing period.
I overpack and let the oogoo squeez out the sides of the mold.
I have made casts using a thin "painting" of straight silicone
caulking that i let harden for 24 hours, and then follow the fast cast procedure.
this ensures a better surface finish on the casting.
make sure that the thin coat is thin!
This is great if you make a glow in the dark outer coating! (using glow pigment)
It is also good if you want to paint the eyes with black dots for the pupils,
white for the balls, etc.
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Bender Bendie Mold set (Cerby's crawlers 01) by cerberus333 is licensed under the Creative Commons - Attribution - Non-Commercial license.
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