Step 5 remove the plastic part from the mold once it has hardened and make as many more as you need.
Create plastic mold.
This can be done with a 3d print or a soft prototyping mold.
While you can buy them in all sorts of shapes sizes and designs sometimes finding the perfect mold for a custom piece is impossible.
The mold is a female replica of your original part.
To create your own silicone rubber mold for plastic casting complete this 3 day process.
The best part of rtv is it comes in the form of liquid until you add the required.
Based on the part that was molded estimate or measure the amount of plastic resin needed to be mixed here is a 1 1 mix ratio resin.
When that happens you have to make your own.
Home plastic injection molding with an epoxy mold.
You need to create your mold with a material called rtv room temperature vulcanizing slicone rubber.
Mix liquid plastics in a well ventilated area to reduce the danger of fumes.
Silicone rtv rubber creates flexible tear resistant molds that are capable of producing fine detail and can withstand high temperatures.
The first thing you need to have for creating a plastic part is a mold.
Cast your mold with plastic resin wait for it to cure and then remove the mold to reveal your creation.
I made an epoxy mold of an existing plastic item.
Silicone molds are favored by casters because they are easy to use and don t require much mold release.
Pour the mixed liquid plastic into the mold at the lowest point.
Then i was able to make copies of that item using a home plastic injection molding machine this process should work for many different types of items or models.
Note that the original item must hav.
Get the right mold material.
The best mold material to combat this kind of casting problem is silicone rtv or room temperature vulcanizing rubber.
If specific color is required add coloring to the mix.
Thermoplastic comes in a wide variety of materials colors finishes and thickness.
Allow it to fill the mold.
You may purchase a mold or create your own custom molds out of reusable molding materials silicone and or plaster.