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Dalek Gun Toggle Shooter Answered

I'm trying to make a Dalek gun that uses a toggle switch to push & pull the gun's shooter in & out. I made a simple toggle & the shooter only moves half an inch.
I need some help to make a toggle with a gear system or extra levers to push out the shooter further.


Will the toggle be operated by a person inside the Dalek, or outside?

Yes, operated by a person.

It's a prop replica from the Doctor Who episode "Genesis Of The Daleks"

If they're inside the Dalek, it doesn't have to be pretty - a simple rod sticking out the back of the gun, pushed & pulled by the driver.

I'm making a replica to these pictures, which had no simple rod unfortunately, but a toggle switch.


Genesis of the Daleks!

So, I have now watched way too many Dalek clips on YouTube, but I think you're going to be OK with what you have.

If you watch this clip, the "leaves" that stick out of the barrel barely move (I'm sure there's one firing when they don't), and I can't see the central spike you have in your sketch (I'm pretty sure that feature is from a much earlier design of the Dalek).

So, that probably means the BBC SFX boffins had the same issue that you are experiencing, and your minimal movement is actually accurate.

All you need to do now is work out how to add the post-production beam effect in real life...

But, wait, there's more...

You might be able to achieve the scale of movement with magnets, instead of levers.

The red blocks are an electromagnetic coil wrapped around the inside of your barrel. You demote your big lever to a simple switch. Pull it, close the circuit, and the magnet attracts the (blue) lump of iron, which pushes the "leaves" out of the barrel. Let go, and the (green) elastic or spring pulls them back in.

If you want to use bought parts, look for a linear actuator, which fits your specifications, maybe one of these:


Dalek Gun.jpg

A double lever system might work but requires a lot of force and will be prone to premature damage.
Depending on much force you actually need it could come down to where and how you mount the lever hinge points.
In your drawing it looks like about 50/50, meaning whatever distance the handle moves the same distance will be true for the prop.
If you can move the hinge point up the prop will get much more distance out of the lever action - in return for higher forces required to move it.
You need to have a sturdy construction and smooth moving parts...