| Useful info thanks...I have made one very similar, but with a deeper base so I can move the shelf up and down to accomodate deeper components.
I use mine in a grill cooker one of those little cheap electric ring things with a grill, its ideal..you need to keep an eye on it, the plastic card rises a little as the air beneath it gets hot then the card starts to sag, I switch on the vac at this time and remove it from the heat and hey presto. |