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nanner wrote:
I found a cheap convection oven (on sale from $70
to $40) and I have burnt 2 batches of test-pieces and the temp doesn't
hold
consistently. I even *melted* polyfil!! wtf!!! I had a oven therm ometer
in
there and it seems to hold steady for 10 min then increase 10 degrees,
etc.

I am going to return it and there is this cheap toaster oven I am going
to
try

A second option (to buying a used range) is to smooth out the
temperature lows and highs with a layer or two of ceramic tile. That
will help if the convection oven's thermostat is basically good, but
lightweight oven construction and relative lack of insulation is
causing the oven's heat source to cycle on and off too much.

It was a flimsy cheapo model (just my price range) I read about using tiles
and you do get more specific which is good BUT what do I do with them? Put
them in the bottom of the oven between the 2 heater rods?

This toaster oven is obviously better quality than the convection oven but I
lose some height with it. I suppose I'll make do. I really don't have room
for a big wonky used oven in the basement but I have such a supportive
husband he doesn't mind at all!


You will have to let the clay tiles soak in the heat for a while before
putting in the poly clay.

Soft tiles (e.g, Mexican red, low-cost tiles) work best because
high-fired tile doesn't like to go up and down in temperature (like
non-Pryex glass).

How long do you think they need to heat up first?


All bets are off if the thermostat is lousy.

Dave