Molding and Casting

For this assignment i used the machining tools of the ROLAND MODELA to shape and  obtain the negative volume , copying game RTV silicone and finally the final product used by emptying resin

Modeling in Rhino

The first part consists of modeling the ring in 3d , then the molds are generated to be machined

Machining

​Then the process of roughing and finishing for machinable wax is set, this process took about three hours because the details 

The Silicone

Just could get good results at the third attempt , the first reaction was not homogeneous for not mix well in the second was for the small amount of catalyst, the silicone never completely solidified

Fail #1

Fail #2

Finally

Emptying

For this step i forgot to model the channel to empty , so I had to cut a little the mold  with a knife

resin

I used epoxy resin components A and B in equal weight but not volume .

The resin hardens yet , I believe that the components were not in the same quantity of volume