So, I've been struggling a little bit keeping my mold up to temp after a few dozen castings. (it's a 9mm Lyman devastator mold for those of you who know how finicky they are) and decided it was a good opportunity for me to go ahead a build a mold oven. With a little oven atop my hot plate, I can swap between my tried and true (but finicky) Lyman mould, and my new MiHec 4 cavity. Simply for safety, I was going to build a small base that fits securely around the element on my hotplate that I'll mount the oven atop of. just a simple circular base to prevent the oven from sliding off after swapping molds several times. As such I'm lookin' at aluminum junction boxes with flanges that can mount to the "Base" easily. This is what I've been looking at:
http://www.amazon.com/BUD-Industries...natural+finish
It's just a simple aluminum enclosure from Bud Industries on Amazon. My question is what would be the best size to make the oven? I can find junction boxes that fit to it very snugly, but with little air around the mold, I don't know how well that would work. Would a oven that is ~3x the volume of the mould work well? or should the oven be much larger/smaller than that? I'd do a 10" cube oven if it's what is recommended, but I figured I should ask before I buy anythin'.
Thanks.