Search found 3 matches

by sammysrocks
Fri Jun 07, 2013 3:32 pm
Forum: Kiln Casting
Topic: firing schedule for small pull knobs?
Replies: 5
Views: 9688

Re: firing schedule for small pull knobs?

We increased to 1575 for 75 minutes, with a fairly fast ramp up of 120 minutes. Also used the paper punched fiber paper discs on the wire without the wrap of paper around them. Used 2 molds, one spent extra time tapping mold to settle glass and get out all the air we could, other did minimal settlin...
by sammysrocks
Thu Jun 06, 2013 1:37 pm
Forum: Kiln Casting
Topic: firing schedule for small pull knobs?
Replies: 5
Views: 9688

Re: firing schedule for small pull knobs?

Thanks for the replies. We built our own kiln control system, Auber is the brand of PID controller we used. The SSR is an electronic contactor without any moving parts, so it will last longer and is very quiet when running, so there isn't any clicking when the elements switch off and on. Safety star...
by sammysrocks
Wed Jun 05, 2013 10:49 am
Forum: Kiln Casting
Topic: firing schedule for small pull knobs?
Replies: 5
Views: 9688

firing schedule for small pull knobs?

Hello all Newbie here with some questions on firing schedule for a 4 piece mold for small pull knobs, like a kitchen drawer. The problem is the glass at the very bottom, where the screw hole would be, is not melting together. It is just "fusing", leaving lots of air spaces. I am using an A...