Assignment

design a 3D mold, machine it, and cast parts from it

Designing in Rhino

For the Designing parpouse i used Rhino software.another one is before the Designing we want to understant our Project is 3d mold for that we want to design a negative molt design or a postive mold.in hear i used a negative mold design.

Rhino Screenshots: final laser cut Rhino Screenshots: final laser cut

Download Rhino File

Milling in Wax mold

After the Designing i start the milling process.I Milled the design in a wax block using modella.moreover i used two bits in this milling process one is 1/8 rount bit and another one is 1/8 finishing cut bits.
Milled in a wax block using Modella Fab module: final laser cut Bits: final laser cut Mould: final laser cut

Casting

next step was casting the silicon mold.for the casting i used sorta-clear and silicon rubber.which is mixing (solar-clear and silicon rubber )1:1 ratio.first i take the volume required by pouring water in to the molding wax after that i epmtying water in to a cup.then i took the equal volume of part A and partB In a seperate glasess and i try to add colour for that i mix blue colour in partB . dont mix colour with part A.after that i mix part A and part B in same glass,mix it 3 to 4 minute very well.then the siloicon mixture part A and part B Poured in the Wax mold.

Materilas Used

Casting Materials: final laser cut

Coloring Agent: final laser cut Coloring Agent:

the colour mix with the part B and shake it very well. final laser cut

Casting Process

for the casting process mix part A and coloured part B 3 to 4 minute, It is ready to mold Process: final laser cut

After 4 Hours

for the well setting process it should take 4 hours.then it keep 4 hours safely. after it take out inside the mold.

Final Out: final laser cut Final Out: final laser cut