** This is a contribution by Secreagent, both the vape invention and the DIY write-up**

Introducing The Pinky: an open-source DIY injector style thermal extraction device. The Pinky features PID Temperature control, a color-changing heater that indicates when it is hot, and a highly adaptable injector interface for all your extraction needs. The core of The Pinky consists of a ruby-fused alumina ceramic TIG torch nozzle. The ruby-fused alumina provides The Pinky with fantastic thermal properties and pure flavor while being cheap and easy to source. Within the housing, between two common stainless steel retaining screens, sits the simple, yet highly effective convection heat exchanger consisting of glass, ruby, sapphire, quartz, or any suitable material in spherical or gem cut form.
I was motivated to make this device after witnessing the birth of the “ball renaissance” of desktop devices. After thinking about the concept, I realized how simple the function of the devices was and set out to replicate it for a whole lot less money. My name around here is Secreagent, and I’m known for getting creative and making my own TEDs. The Pinky is the epitome of what I aim for, cheap, simple, and highly effective and I sincerely hope to bring some joy and happiness with this concept.
The Pinky is incredibly powerful and guaranteed to impress even the most discerning of enthusiasts. Despite being one of the fastest extractors to exist, the flavor it retains is phenomenal for a true best of both worlds experience. The Pinky is easy to assemble, dead simple to maintain, and guaranteed to deliver time and time again. Now, for the parts list:
Parts: Links will be placed below for your convenience, some of these links will be affiliate links, but feel free to use another source if you prefer.
- 1x #8 53N61S TIG Nozzle
- 2x ½” Rimmed Basket Screens (“18mm Basket Screens”)
- 3-4mm Glass Boiling Beads, Ruby Pearls, Sapphire Spheres, Cubic Zirconia Gems, etc.
- 20mm Barrel Heater Coil for E-nail Style PID controller
- Suitable PID Controller for Your Coil
Links:
Amazon US essential parts: The Pinky Essentials list (affiliate link)
Amazon US accessories and related items: The Pinky Accessories and Related Items (affiliate link)
For now this is these are the only links, I will add international links in the coming days
Useful Tools:
- Tin Snips
- A Dab Tool or Similarly Shaped Object
- Some elbow grease. Getting the nozzle on the coil can be a bit of a challenge and requires some dexterity and strength, but it’s well worth the effort.
Instructions:
- Insert nozzle into the coil.
- This is the most difficult step of assembling The Pinky. The best advice here is to try and twist apart the coil just enough and push the ceramic housing in while it’s easier. For the unit demonstrated here, I had to use a small bench vise to help get the coil on all the way. An oil filter strap wrench may be useful here as well.

- Prepare the retaining screens.
- This consists of two steps, flattening out one screen, and cutting the rim off of another. For flattening the top screen, a ball-ended dab tool works very well to form the sides of the screen before pressing the screen flat. The exact method of removing the rim from the lower screen is not important, here I have demonstrated what works for me.
- Insert the bottom screen through the top of the housing and push the screen down to be flush with the bottom of the nozzle.

- Fill with your chosen material, place top screen, and enjoy!
Here the color-changing nature of the ceramic is on display:
The Pinky works with many injector-style bowls and my personal recommendation is the ispire wand banger with a screen formed to fit at the bottom.
If you have any questions find me on the 420vz discord under the name Secreagent where I will be happy to assist you!
The Pinky is licensed under CERN-OHL-S