Prepping for First Home Casting
I have assembled a complete setup for doing my own lost wax castings in my own shop. My adult daughter and I took a class with the "Craft Guild of Dallas" on how to do wax carving and lost wax casting. I have published what I did in class elsewhere in this site and in the attached blog.
Now I can practice all I want and do it all for myself without waiting for a class session. It is practice that makes perfect in my way of thinking. The class and instructor based training makes sure I am not practicing wrong.
I carved the Celtic Trinity Knot many months ago November 2013, as well as several other objects. Now is the time to prepare for casting.
This is the sequence I followed when I mixed the Investment and programmed the kiln. My flask is 2.5 X 3 inches. I used 300 grams investment and 120 ML water. I have to be close but not critical. I used my vacuum chamber too!
I did this no wax model "hot run" so I would have the experience with my new equipment before I burned up the real wax model. With lost wax you only get one shot.
I learned a lot in this 10 plus hour investing and firing run. I am extremely happy I did the trial run first. I probably wouldn't have ruined the end result but I would have been a lot more nervous. Now I know I have a workable plan.
As I have said, this is a work in progress. So I will be adding to this article as I work on this project. The next sequence will be the real investment and the burnout followed shortly with the casting of the silver. I need another weekend to do this as I am not prepared to leave the kiln firing while I am off premises.
My biggest lesson this time was how much heat the kiln sheds during this long run. And the best feeling was it all worked well.
I didn't have time to take a lot of pictures as I didn't need the distraction while doing the investment. It is time sensitive. There is not a lot to show during the kiln heat. I could have grabbed a shot of the flask before I disinvested it, but it looked like the other pictures here except for white ends...
More to come.