As our water pot is made from glass in real life the pot will be pressed. Seeing that we couldn't do that in real life, we decided to make the pot out of plastic for presentation purposes. The process can be see below.
The mould was made from mdf boards glued together and then carved with the lathe to the right shape. The mould is also extended past the size of the pot so that the mould can be removed after it is moulded.
The top was then cut out with a router for the servo rotor. The whole mould was then sanded so that the particles and marks don't show up in the plastic. We drilled ventilation holes in the centre and corners so that the plastic was sucked into the cutout.
The plastic was then heated up and placed over the mould so that the plastic is sucked onto the mould.
As you can seen, this took a few times because the difference speeds that the vacuum was turned on and brought down on the mould creased the plastic.
After the mould was right, i cut the top off with a bandsaw and wet sanded the edges.
The pot was then sandblasted by taping the bottom, so that the bottom was left clear.
This pot was the clearest mould but the cutout was still a little rounded.
The rounded edges can be see above.
This pot has a more defined and sharp cut out however it was more cloudy and the lines from each mdf pieces are on the plastic.
No comments:
Post a Comment