Here is one of my favorite oil rigs. It is affordable and works awesome!
This rig is meant for waxes, oils, shatter, etc. Basically, straight concentrates. Of course it will work for e-ciggs and e-cannabis too. It is not pretty like a lot of the items shown here are, but I am very attached to it.
It is super cool how this rig is all mechanical. Even the safety to lock the power button is reverse threaded so you don't have to worry about accidentally turning it on. The power button is sweet. The power button is magnets and not a spring. These magnets push against each other. It is just like the SVD by innokin in that it telescopes and accepts the same batteries too. 18350 - 18650.
An adapter is necessary for this rig to go together. The necessary adapter is a 510 - 601 which I purchased from Tropical Vapors.
Then you can attach 3.7 Volt Persei accessories to your 510 vape.
For this vape, I recommend the UP Tech KISS cart. The new titanium KISS is good, but for this rig I prefer the original KISS cart. I purchased the UP Tech KISS for $20 from w9tech.com.
The vaporizer I purchased from High Desert Vapes for less than $50. It is the Smoktech Magneto available in brass or staniless. Of course, I had to have both!
I have seen other mechanical vapes that do not even compare and they cost up to $200.
Works great too. I have been using this for a couple weeks straight now and no failures. It took a little getting used to, but I am really diggin it.
I like the mechanical vapes, they work differently that the electronic vapes like the SVD.
Edit:
"Mechanical" LOL
http://www.youtube.com/watch?v=czRsltWGhw0