Author Topic: Project: Monster in a Box  (Read 1235 times)


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Project: Monster in a Box
« on: November 02, 2013, 08:22:58 PM »
So this year I decided to do something special for halloween and inspired by a trip to Tampa Bay Mini Maker Faire I decided to make a monster in a box.

So first off a simple box. Some rough cut lumber and a few nails later (yeah it's never that easy).  This box was rather large as I had planned to have some other effects, but time ran short.  I'll save the tentacle monster for next year ;)

Next up was a way to lift the lid and bang it a bit randomly. The tooths are random in start time and 'drop' time, but all the same heights.   The extra large turn is to give the eyes a chance to peek out. Of course there's always were a few snags... over tightened the shaft coupler and cracked the PLA...  Rebuilt in ABS and off we go.

Here is a picture of the lid raising mechanism fully assembled.

And another shot of the box, with the roller which rides along the 'saw-blade' wheel

The lighted eyes were on loan so I couldn't hack the wires. To get them to light up at the correct time I needed to switch the power on and off via the Arduino.  I took an extension cord and hacked it adding in a relay and some leads that go off to the Arduino. Between the relay and the Arduino I have an L293D to handle the voltage and protect the Arduino.

There were a lot of different effects that I wanted.  I ended up using almost every single available pin in the Arduino.

1. Fog Machine on/off
2. The 'sawblade' wheel
3. A switch for the wheel (used for timing)
4. Eyeball lights
5. PIR Motion Sensor
6. WaveShield

Stuff it all in the box, and then....


Monster box on the wild

Got to watch the PIR sensors, they are crazy sensitive.  The neighbor walking his dog on the other side of the street set it off. Hilarity ensued.
« Last Edit: November 02, 2013, 09:18:42 PM by Simply7 »


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Re: Project: Monster in a Box
« Reply #1 on: November 03, 2013, 06:46:42 AM »
There is Quality in the Details
That is All


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Re: Project: Monster in a Box
« Reply #2 on: November 03, 2013, 07:56:15 PM »
Oh wow! That's awesome! :o