Another problem with some of the above suggestions (including mine) is the components tearing apart the gun apart due to vibration. If the gun is made out of metal, no big deal, but I doubt if it would be.
The main problem was not "how" to move the shaft in two directions quickly (that's a given) but more how "far" to move the shaft quickly.
The distance needed was indicated in the first post 80mm to 100mm (that's quite a bit using the means suggested so far) as well as the
issues with each means.
A lever and fulcrum, solenoid/electromagnet, motor, servo, pneumatic (needs constant, portable pressurized air, valve and piston setup), space restrictions, etc.
TazMan2000 - I think your right, the thread starter is gone.
So......there has been many suggestions on this thread to give you ideas and facts to think about.
Have you started designing and building a prototype to show your progress?
I think you would need some mechanical set up that would give you more of a "SNAP" action in both directions at the
prescribed 80 - 100mm you want, rather then using a motor to drive a shaft.
It might be a bit slower then what you are looking for (based on what the video shows).
Heh that's a cool idea, can see it being compact as well
Yuppo, did end up winding my own in the end out of 0.75mm dia wireDid you wind your own solenoid coil?
There have been a few new members here, who ask for advice when working on a project, that is probably far outside their abilities, and they become disappointed at the advice, which is given to them, because it is way too complicated. This is not the case with you. You took the advice and went far beyond my expectations. You really hit it out of the park. The mechanism works great.
This is lovely. Please keep this thread updated with the build, I'm very intrigued
You have a keen eye for coils ;^]Looking at your video, I could tell it wasn't a store bought coil. To do what you needed, you would need something
with a little more pull...that coil seems to work great.
What kind of power source and oscillator circuit will you be using to drive the solenoid as shown in the video?
Yuppo that's basically the gist of itYa, I think you can make a buzzer using a simple relay that way too.
Putting the power through one of the contacts of a relay will cause it to cycle on and off. As the coil energizes
through the contact, power is removed, allowing the contact to close again, reactivating the coil and the action
simply repeats over and over sounding like a small buzzer
P.S. Maybe a rechargeable battery from a hand tool (drill, etc.) will work good to.