I am thinking about building centrifugal casting machine, burnout
kiln and wax injector.
While burnout kiln is not hard thing to build - I already made one
for a friend. It was made of insulating firebrick, 600 watt heating
coil and some steel sheet. Chamber was 12x12x12cm. It heated
quickly(about 15 minutes) to… I dont know how much but is actually
melted pcm instead of firing it. so I suppose it was something
around 960*C. So I mounted ceramic pt100 probe and temperature
controler, and it worked just fine.
I have read article about building wax injector on ganoksin but I
dont like the idea of heating wax by placing injector on heat plate.
I also read “handbook of lost wax and investment casting” and there
was article about making wax injector wit hheating coil. But to make
the coil not touching the steel can with wax, can was covered with
asbestos - which is not good idea. Do you have any other ideas of
solving that problem? I think you could use ceramic beads to protect
heating coil from touching the steel can. Coild would heat up, and
transfer heat to ceramic beads and from them to steel can and melt
the wax. What do you think? Other idea is to use heating element
from electric kettle. You would install it inside wax pot. Would it
work? Injector would be using air pressure from hand or foot pump.
Centrifugal casting machine is a simple tool toold to make. Spring
can be made or bought. Spring cover would be made of large diameter
steep pipe. Arms would be made of band steel. It need One-was
bearing to work. One end of spring is attached to the spring cover,
orhte end to one-way bearing, shaft is inserted into bearing, and
arms are mounted onto the shaft. Seams not hard to make, but I need
too see some pictures of inside of spring cover, and how it is
So I would like to hear your tips and comments how to build wax
injector and centrifugal casting machine. I would like to see
pictures of casting machine - how it is made, maybe some plans…
And your advice.
The reason why I am thinking about building these tools are their
high prices in Poland. Spring driver centrifugal casting machine w/o
accessories like crucible etc cost about 600-700$. Small burnout
kiln 800-1000$, wax injector 700$. Building these tools will save a
lot of money for me.
So im waiting for you advices, pictures, plans and comments.