Static De-shocker Wand

by alany, published

Static De-shocker Wand by alany Sep 3, 2012

Featured Thing!

1 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps



Static De-shocker Wand by alany is licensed under the Creative Commons - Attribution license.

Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag


Thing Statistics

15124Views 1240Downloads Found in Electronics


Static dissipative wand for discharging yourself to avoid nasty shocks in a low humidity environment.


I was getting zapped all the time at my new job, the floors here and my shoes must be quite a way apart on the triboelectric series. So, I built this discharge wand as a bit of a joke, but it is actually pretty handy, and doubles as test equipment.

Extras required:

1x NE-2 neon bulb (5 mm OD)
1x 39kR 1/4 W resistor (not critical)
2x Brass caps (or copper tape, tube, etc)

Print two body pieces, solder the resistor and NE-2 bulb in series. Place NE-2 bulb so it is visible through the hole in the wand wall. Fold wires over the ends and cut to length, then secure and assemble by pushing on the end-caps.

OpenSCAD file is parametric to accomodate different geometries. I just happened to have two brass caps in the junkbox here that worked well, you can use copper tape, or pieces of brass tubing, or anything else conductive, spheres, whatever. The resistor value is not critical, the smaller it is the more of a chance that you'll feel the current pulse, larger values up to a meg or so will be fine. 10s to 100s of kR are ideal for seeing the flash. You can put a small capacitor (say 1 nF) across the NE-2 and have it blink a few times, or flash while testing ionisers.

Obviously you don't need the neon bulb, and it cuts off at about 60 volts, so it leaves you slightly charged. You can just use a 1 meg resistor if you want, but I like the flash feedback of successful discharge. You won't feel the residual charge.

More from Electronics

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for clients all over the world. We offer free and instant access to comparati...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App

I too would like a little detail about how this is used... I'll probably make one and just play around until I get it to work.. but spelling it out for those of us who aren't trained in this field would be helpful..

I'm going to assume you use this to touch to something metal to ground yourself and can then see the flash as it discharges. The resistor value determines if you feel the "shock" or not.. Am I right?

Cool. I might use a capacitor, switch, and LED instead, make it a static-charged flashlight. :)

How exactly do you use it? Do you just hold it and it discharges you from touching both ends? Or do you touch a metal surface with it and hold one of the ends and it will discharge? If so which end do you hold? Does it matter?

the stl file doesnt slice well on slic3r 9.2. any chance of uploading the scad file? thanks..

Oops, I thought I uploaded the source. Done, sorry about that!

This is awesome! Where'd you get the Ne-2 bulb and end caps?

The NE-2 bulb should be available from any electronics store. The one in this I stole from a terrible quality 3-way power tap from Harbor Freight. There are plenty on eBay too.

The end caps are more problematic. I found mine in a box of junk, no idea where they came from. You could remove some from fuses, or cut small pieces of brass tubing from the hobby store. You could also just wind some bus wire around the ends a few times. The brass caps just make a nicer looki
ng unit, but there are plenty of alternatives.

The end caps probably come from a glass fuse (they probably broke away from the glass inside the junk box) used in cars and electrical equipment. They have them at Radio Shack and car part stores.