The Piston
A directional joystick carb cap for the Dr. Dabber Switch GO, machined from solid Grade 5 titanium in a one-person American shop. Choose your bore, choose your color, and give your compact rig a big-rig draw.
One Lathe, One Pair of Hands
Kyle Wym is an engineer and machinist who got tired of stock carb caps leaking flavor, so he started cutting his own. Every Piston that leaves his shop was bored, faced, deburred, and checked by the same person who designed it. Nothing is jobbed out. It is a small operation on purpose: slower, tighter tolerances, and a finish closer to a watch case than a vape part.
Ordering direct means a made-to-order wait while Kyle cuts your piece. We keep them in hand, sorted by bore and color, so yours ships with the rest of your gear. Same maker, same metal, no queue.
Why a Controlled Bore Tastes Better
The idea is simple and the machining is what makes it work. Three steps from stock cap to flavor cap.
Four Bores, One Question
The restriction is the bore diameter in inches. Smaller number, tighter draw and more back-pressure. Bigger number, easier pull and more airflow. The real question is how much drag your glass already adds, because the cap and the glass add up.
Match the Cap to the Glass
The Piston pairs well with most Switch GO glass. These are the combos we reach for ourselves.
Built Like an Instrument
Titanium, tolerances, and a finish that shows its work. This is what separates a machined cap from a cast one, and why it is as nice to hold as it is to use.
Know Before You Buy
What’s In the Box
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+1x Wym Designs Piston Joystick for Switch GO
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+Your Chosen Bore and Colorway
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Not Sure Which Bore?
| JFGlass Diffy PumpPairs with the open bores | Wym Designs Ti InsertSame maker, same metal | Dab Hut DiscordBore advice from real users |
Pick your bore and color above. Tell us what glass you run and we will point you at the right restriction. We run these caps on our own rigs.





























O. (verified owner) –
Verified Buyersomeone recommended this model on reddit so i picked one up and i have no complaints. tons more vapor, high quality build… overall very satisfied!!