It's easy to make an accurate copy of something with a silicone mold. You can cast a copy in resin, wax and lots more. I got all of my molding supplies from Inventables.com, links below:
I've got links to everything you need on my sitehttp://www.iliketomakestuff.com/how-to-mold-and-cast-an-action-figure
Mold making is yet another thing I’ve had tons of interest in for a long time, but have never really done much of it. The one occasion that I tried it out was to make some climbing holds, which worked surprisingly well, actually. I was able to find everything I needed at inventables.com so I decided to give it a go.
I was surprised at how well it worked on the first try. Although the mold wasn’t perfect, and the cast wasn’t either, they were both really close.. and for my purposes, good enough. Having done some research, I found that having a vacuum chamber (I have to see if I can make one of THOSE) is hugely beneficial for removing the air bubbles from both the molding and casting materials.
Check out my process below, and if you have more experience with silicone molds, please leave some tips and tricks in the comments below!
Here’s what you’ll need:
(purchasing via these affiliate links supports ILTMS)
Oomoo 30 silicone rubber - http://amzn.to/1VuTwTM
Mold Release Agent - http://amzn.to/1QPrJvS
Color matching resin - https://www.inventables.com/technologies/color-matching-molding-resin?ref=iltms
Measure your item, then add 1/2″ to each side.
Measure out four strips of plastic or foamcore for the box sides.
Cut the sides out, just make sure the height is well above your object’s height.
Cut a square for the bottom piece of the box.
Hot glue your object in the center of the box bottom.
Hot glue on the walls of your box.
Seal all cracks with hot glue.
I used Oomoo 30 for the mold material.
Mix the parts at a 1-to-1 ratio.
Mix thoroughly, scraping the sides and bottom fully.
Slowly pour into your mold in a thin stream to reduce bubbles.
After it’s cured, remove the box from the mold.
Cut a serpentine pattern on two sides.
When you’ve opened the mold enough, remove your object.
The molds maintain ALL of the tiny details.
Spray the inside of the mold with a release agent.
Using wooden side supports, tape the mold to keep it closed.
Mix your resin. In this case, I used a 1-to-1 mix urethane resin.
Slowly fill the mold, spinning the mold to fill pockets and release air bubbles.
After it fully cures, remove the cast item.
Check out the final result!
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About I Like To Make Stuff:
We have lots of projects including woodworking, metalworking, electronics, 3D printing, prop making and more!
These videos are our attempt inspire and empower others to make the stuff that they want to have. Hopefully you'll see something here that will inspire you to make something that you're passionate about!
Mold and cast an action figure ( or anything ) // How-To | I Like To Make Stuffhttps://www.youtube.com/watch?v=jZSMWmevFBo
I Like To Make Stuffhttp://www.youtube.com/Iliketomakestuff