Invisible Ink Printer (PDF)
Download a PDF of The Invisible Ink Printer project instructions here. Thanks to Mike Golembewski for the original article in MAKE Volume 16.
Year: 2011
How-To for Secret Agents: Invisible Ink Printer Mod
Make: Online readers who are secret agents—or secret agent wannabes—will love this project, which comes to us from MAKE Volume 16. By replacing the ink in a color inkjet cartridge with concentrated lemon juice, you can print with invisible ink. The secret message is revealed by spraying or wiping the paper with iodine tincture. Here’s […]
Remote Controlled Airsoft Turret
What do you get when you cram a PIC microcontroller, servo, IR receiver, and a sawed-off Airsoft into a cake dome? Why, a “Tupperware Turret Airsoft Gun”, of course. If you’ve got a need for a non-lethal remote sentry device for your home or office, consider this serviceable deterrent how-to from Chris at PyroElectro.
Car-B-Gone: Mitch Altman’s Newest Universal Remote
Altman shows off the Car-B-Gone suitcase unit If you’re reading this, you probably already know about the TV-B-Gone, maker hero Mitch Altman’s pocket-carry clicker that turns off television sets en masse in public places. New versions of the infrared device, both pre-assembled and in kit form, continue to sell, and makers have built them into […]
Invisible Ink Printer
Direct from MAKE Volume 16, this project shows you how to mod your printer so that it prints with invisible ink.
More information, including a PDF of the instructions can be found here: http://blog.makezine.com/archive/2011/04/how-to-for-secret-agents-invisible-ink-printer-mod.html
The Art of Productive Procrastination
About four times a year I seem to be able to concentrate well for eight hours in a row — in fact, about 48 hours in a row — and I just let it happen. I don’t know when it will occur or why, but it’s typically when some manic inspiration strikes. The rest of […]
Crafty Showcase Showdown
The upcoming Midwest Craft Caucus just announced their Saturday night plans – Crafty Showcase Showdown. Midwest cities are going against each other for the ultimate crafty title! You can follow news about the Midwest Craft Caucus here.