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Aquabot mold (cerby's crawlers 02)

by cerberus333, published

Aquabot mold (cerby's crawlers 02) by cerberus333 Dec 6, 2012

Description

This was my test mold for oogoo tests (oogoo is silicone caulking and cornstarch mixed 50/50 or less starch ) http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/ if you print it and cast, there are no allignment holes, so you need to use a flat surface to line the sides up. It cast pretty well and was a good mold to learn some about oogoo casting in ABS.

not a derivative but props to jasonwebb for inspiration with this thing: thingiverse.com/thing:31581

Recent Comments

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great to know!
I have had really good results with ABS,
but a LOT of folks seem to favor PLA.
oogoo works great with PLA. It acts like teflon or something. It holds ok while curing, but peels right off completely cleanly.

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Instructions

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.

casting process: fast cast: mix your oogoo and pack 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) for the legs again go foot to foot (make a extension into the body a bit to help anchor the wire) again beads help keep the wire centered. once the packed halves are ready to be merged

c-clamps to squeeze the 2 sides together and hold it for the curing period.

fine cast: 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)

oogoo works great with PLA. It acts like teflon or something. It holds ok while curing, but peels right off completely cleanly.
great to know!
I have had really good results with ABS,
but a LOT of folks seem to favor PLA.
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