Crazy Cuts Can Create Clean Castings

Even a small object can require a complex cut pattern in the silicone rubber mold.


One of the biggest advantages to one-piece silicone rubber cut molds is that you can create a very complex cut pattern that hides the parting lines on the object and results in a very clean casting.
In this video I demonstrate how to cut crisscross parting planes that hide the parting lines on the inside of a ring; resulting in a very clean casting requiring minimal clean up.

Thanks to Michael for printing the skull ring for us.
He has an excellent channel on 3d printing called Nerdtronic.
Check it out at:    / @nerdtronic  

TIME STAMPS
00.00 Skull ring STL file sent in by viewer Osman.
00.23 How the ring was printed by Michael at Nerdtronic.
02:53 Testing the ring resin for cure inhibition of the silicone rubber.
03:27 Mounting the funnel, sprue and vents on the model.
04:13 I bought a assortment of wax rods of different shapes.
06:02 Mounting the ring in the mold cup.
06:35 Pouring the mold rubber.
07:56 Cutting open the mold.
17:25 Mixing and pouring the resin.
19:20 Putting the mold in the pressure pot to cure.
20:08 Opening the mold.
20:42 Inspecting the casting.
21:10 Cutting off the sprue and vents.
23:50 Save the cut off funnels for use in future projects.
24:04 Use a Dremel tool to cut the sprue off down inside the casting.
24:44 I hope you enjoyed the video and hit that like button!

Here is a list of suppliers for the rubber, resins and waxes I use in my videos: https://www.dropbox.com/s/kz6mhmf7v5v...

Do you have a project to suggest for the channel? Here’s a .pdf with everything you need to know: https://www.dropbox.com/s/pjb0l6fr7zj...