When your GF needs something warm to rise focaccia dough and you’re printing 
no energy loss
are you not concerned of particulate deposits from the melted plastic above?
This is some top notch multitasking.
Hang on a mo, Doesn’t it matter what plastic you’re printing in. I love the smell of PLA in the morning but ABS makes me ABSolutely puke.
How was the bread?
No honey, it’s not another printer, it’s a bread warmer. I’m thinking I might be able to pull this off for my wife’s birthday next week.
Actually, I was threatened with bodily harm, so I may need to rethink this…
Fantastic! XD!
What is the Cost
It’d butter be cheap or you’ll need a ‘rise’. Man does not live on bread alone.
Fantastic 
i use my printer bed as a heat plate often for maney things