Making a vegetable mold

[David - WI]

That's pretty cool actually.

If you're going to make more, you might want to look into a flexible strip heater; so you can heat just the area that you want to bend without making the whole sheet "floppy". Example: your flanges would stay straight(er) if they stayed cool and you just heated the bend.

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This one is 24" long from USPlasitics (I think):

Heater is designed to heat to maximum of 280 deg F, to prevent accidental burning. It will bend up to 1/4 inch thickness.

I usually fold the heater in half and heat the front & back of the bend (if the part is 12" or less across) because it softens the plastic faster if you heat both sides.