We´ve had a lovely autumn leave from school – a whole week! I were enjoying my free time (sewing) but now i´m back with interesting things to share.
First off; We had time to do some traditional bronzecasting before our leave, I did get to cast one of my own but I cant say it went well. It was a long day even though our teacher had prepared alot beforehand. For safety reasons the crucible was burnt in a oven, as we have no or little experience with this kind of work, there is always a risk that they might not hold or even explode if there is moisture trapped inside. We started the day with digging and building our firebed and furnace. We used fireproof bricks and sand as opposed to clay and stone to minimize the possibilities for failiure.
From left to right; The pipes are connected to leather bellows and provides oxygen to the fire. The furnace area is a pit, with holes for the pipes and filled with coals. It should be pre-heated to get rid of all excess moisture and store heat to help the melting process. The weird brick piles and the fire in the middle is used to pre-heat our moulds and melt out the wax. We slowly moved the moulds closer to the fire and eventually into it. The little pile of sand in the end was our pouring space.
When the moulds were warm enoug and didnt contain wax, we put cold coals on the embers and put our molds in the mix. The heat then gradually made its way up through the bed of coals and heated upp the moulds nicely.
It was a cold day, so we were all huddling close to the fire and dreaming of a warm cup of something. A faint smell of burnt rubber was the result of people trying to warm up their feet. At this point it was time to start melting the bronze.
It is amazing how hot you can make the coals burn if you just add air. We took turns using the bellows and casting.
It was quite hard getting the metal to flow where you wanted, not to mention avoid getting pieces of coal in the mix! After pouring the metal needs to cool a bit before throwing the thing in water. Then it was time to open it up!
Yeah, mine did not turn out that well. The bronze cooled too much before pouring and tadaa: The fox looks more like something a fox might leave behind. In the bronzecasting post from earlier I have a picture of how it should have looked, if you want a laugh I recommend taking a look! Well, most didnt work out but maybe next time! We will do some other types of casting next week, that should go better!
Other news: We went to a slaughterhouse to buy some sheep hides. Some took it better than others and I´ll tell you more about that in the coming days. We will be working with these hides for the next couple of days so i will leave it for another post.
The school will be hosting the last christmas market (?) and open doors event this year as we will be moving to new locations. The students will sell their products and people are welcome to see us working. There will be all kinds of fun things to see and do so If you happen to be in the Mynämäki area 3.11 then do come and take a peek!