Tuesday, 13 November 2012





Hello fellow bloggers, I have been doing a bit of casting from the mould I made last week. Hopefully I can upload images of these (without losing them).
     
As you can see the original mould was a bit fragile so it had to be reinforced with clay. Apparently I didn't need as much clay as I used but sure you live and learn. After packing clay around the mould it was ready for casting.
 I had planned to do a fibreglass resin cast but it wasn't possible on the day so I made the first casting with wax. This is the result of the first attempt. Not surprisingly mistakes were made. Left to my own devices I had assumed that the melted wax gets poured into the mould - so thats what I did. Didn't realise (until it started leaking) that the wax should be built up in layers. Luckily one of the technicians was on hand to show me the correct proceedure.


The second casting was more succesful, though I may have left the cast in the mould longer than I should have - it was a struggle to remove. This cast was also stronger and thicker as I had a better idea of what to do. I also noticed that the mould is starting to deteriorate a bit, possibly due to leaving the wax in to long on the second attempt. I was going to try a rubber casting next but it looks like there's none left till the new year so I'll try fibreglass resin instead. Watch this space.
















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