Retouching the print and receiving the metal samples

Currently we are in the final few days before the Science Fair which will be held this Tuesday. On this day all the groups from the Advanced Prototyping minor will present their work. Even though we got a fair amount of prints and models to show at the fair, we are not quite finished yet.

This morning (Monday) we took out the cast-able resin print we started Friday. We were very happy with the quality of the print, but there is still some room for improvement. That is why we will edit it manually.

A full-size cast-able resin print

After cleaning and taking off the support, we used a dremel tool to start cleaning up the edges. Even though we still have a long way to go, the difference is clearly visible and the lines are getting sharper and more detailed.

Using a Dremel tool on the cast-able resin crown

During the cleaning, we noticed an email from Maaike that she received the casts of the samples we sent to the casters in Groningen. We decided to get them as soon as possible, so we took the first train to The Hague.

The metal samples from Groningen

After receiving the metal pieces we noticed straight away that the marks on the back were not visible anymore! Luckily we cut the pieces a little bit different so with some puzzling we could to figure out which one was which. We also saw that all the pieces are very similar to each other. The digital and manual restoring is visible, but the usage of different materials (cast-able resin or wax from the silicon mould) has little to no influence on the result.

This lack of difference tells us that we can use both methods to restore the crowns, and since both methods differ a lot in time and money, we can choose the most suitable one. This means that we will chose wax instead of cast-able resin, because this is much cheaper.

One other observation we can make is that we still have to work on the details. Due to the casting, the crown will lose a little detail. We therefore have to overcompensate for it, which can be done by continue using the Dremel tool on the cast-able resin print.

For now we will continue to prepare for the Science Fair by making posters and other materials to explain our process as clear as possible to the visitors.

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