Time for some pictures!!! This was the last version with the glass heat tube And this would be version 5! Took about an hour in total to make, so not bad at all! I modified the test tube and made a new SS stem. The only metal in this version is: The resistor wires The DC jack The thin aluminum plate holding the test tube. This will turn into SS if the wood survives the heat! All the parts The insides So far this vape works very well! It does not use a lot of herb and the clouds are very impressive. I will be taking it to a friends this afternoon that has never vaped before, so it should be interesting feedback!