Thread: Non pneumatic pop ups?

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Has anyone made a pop up prop without the use of air? I don't even own a compressor, so that's out for this year, but would like to make at least one pop up, and maybe something that lunges.

Windshield wiper motor could work for you. Although the movement is constant and very "fixed" when constantly on. Hook it to a timer and have it stop on the upward motion, then on the downward.

I made this prop using a solenoid and a spring:

Lizzie Borden Tombstone (with a twist)

Originally Posted by sujen

Hello,
Nice post i like it
In industrial and commercial manufacturing and production pop rivet guns play an important role in the joining and fastening of metal and other materials. In the aircraft manufacturing, the fuselage, air wing, and just about every external surface of the body panels are fastened with pop rivet guns, making them an indispensable manufacturing tool.
Thanks

huh? .... scratching head still.....LOL

And for the rest of the article about 'Understanding the Quality Differences in Pop Rivet Guns' go to : http://ezinearticles.com/?Understand...uns&id=4185252

Is sujen some sort of weird spammer?

K, sujen, I'll toast my next in flight cocktail to the rivet gun, until then I appreciate everyone's suggestions.

Wiper motors are suppose to be waterproof. As for timimng, why couldn't you hack the delay from the car? They are set for one rotation every so many seconds. On my car it is from 15 down to 2 seconds. Just a thought.

Nice work on the tombstone and very clever with the way the hatchet breaks through.....love it!

K, good stuff, I have an idea. Somewhere on this site I've seen a link that shows different gear setups, that give different movements from a fixed motor(if that makes any sense). If anyone can find that it would be helpful.

this link
http://www.flying-pig.co.uk/mechanisms/index.html