The example here is the outside of a mold but it can work inside too.
How to mold plastic sheets at home.
A layer of silicone mold putty will form 1 of the mold s inner walls.
Coat the master part with a release agent.
Apply mold putty to the clay bed s surface carefully covering the alignment keys.
Have a mold ready to use.
Make adjustments appropriate to the specifications of your project.
Preheat the oven to 250 degrees f.
Apply a layer of mold putty to the exposed half of the master item.
Then fire the clay mold in an oven to harden it.
As you ll need to put the plastic sheet into the oven this is your size limitation.
Cover the master item s exposed half with silicone mold putty.
To make your own molds try forming clay around one half of an object then the other half.
Get the right mold material.
Place the two halves together leaving a hole in the top where the plastic will be poured.
Attach your vacuum cleaner hose to the attachment on the side of the plywood box.
Put some coins under the edges of the form to allow the air to flow freely between the form and the pegboard.
Molding the plastic place your form in the center of the pegboard on top of the plywood box.
The first thing you need to have for creating a plastic part is a mold.
Heat for approximately five minutes.
And if you really want to give it a try then the following five steps are all you have to perform.
You can also buy molds at craft stores but for best results choose a mold that is lined with aluminum.
The large pan prevents the plexiglass from coming into contact with the hot rack which can distort the plexiglass due to uneven heating.
Measure the inside of your oven.