0

How to Make Dr. Horrible’s Freeze Ray

Dr. Horrible’s Sing-Along Blog came out in 2008, but it’s still inspiring costumes (and I still know the words to all the songs). Norwood Cosplay made Dr. Horrible’s epic Freeze Ray using plywood, chrome pipe, copper pipe, plastic PVC, and a few other odds and ends. To make it extra intimidating and super villain-like, they added LEDs and other lighting — including a car turn signal indicator. They explain:

A car turn signal placed inside the outer box created a chevron pattern of lights like a loading light. The turn signal was wired to a repeater switch to continually turn on the signal. Without it the turn signal turns on once and then shuts off, requiring the whole device to be turned off and on again. We ended up covering the repeater with a couple layers of craft foam to keep the clicking noise of the repeater down. In a quiet place it’s hardly noticeable and in a crowed convention hall you can’t hear it at all.

Two LED strips were fed through the two plastic tubes that stretch across the front of the boxes. Two waning red LEDs were fed through the small copper tube at the front of the box. The turn signal, the two LED strips, and the waning red LEDs were all wired together to the toggle switch on the back of the freeze ray and were powered by a 4-AA battery pack. The flashlight was clipped to the inside end of the chrome pipe and the end was removed so it could be wired to a large battery and the button in the lower handle.

Read about the entire build across five detailed posts at Norwood Cosplay’s Tumblr.


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 14,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — Robotics manufacturer Anki is stripped for parts

Wearables — Form a flame

Electronics — Lead-free Soldering Temperature

Biohacking — Vitamin-C + Gelatin for Accelerated Recovery

Python for Microcontrollers — See you at Supercon, Python #2 language on GitHub and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit

Adafruit IoT Monthly — Helping Harry's Heart, CircuitPython meets AWS IoT and more!

Microsoft MakeCode — Lenticular Art Display with Crickit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.