GearHeads Forum

I was thinking of a way to quiet down my Scimitar. I saw one user mentioned using felt at the contact points and I considered it.

I'm curious if there is a way to recapture some of that lost energy with the use of a spring positioned at the point where the escapement wheel drives the shaft cam ...

This was an easy build.
I plan on scaling it up and cutting it out of stainless steel.

https://youtube.com/shorts/UKp5oPGR6vA

Very nicely done. !!

Regards
Art


This version has one output shaft with one set of wings bolted to the shaft. The outer set of wings sits on the same shaft on bearings, free to turn and not powered. It moves somewhat randomly with the other.
It has been a bit tricky to keep it running ...

I'm pretty happy with this so far, but still needs a bit of tweaking.

https://youtube.com/shorts/KsYxXFG7CIM

Thanks Art!
I'm refining parts of it as I work out the bugs.

I'd be intrigued to design a double Scimitar where the vanes ran in opposite directions.

I've seen mentions of plans for the "Bat". Is that available anytime soon?

This gets fun once you get enough insight into how these things work ...

>>What is the purpose of the spring you describe as a "clothespin" type? I've got a spring on the ratchet for winding but unclear what the other one does.

That spring makes the arm fall back to rest position after being pushed out on a trigger point. Depending on the orientation and weight of ...

Thanks for the clarity Art.
The shaft for the vanes was not spinning well and the problem was both poor bearings and some misalignment. I'm remaking the frame of the scimitar to make it more rigid (laser cut acylic is a beautiful thing but large sheets are prone to warping under load.) I also turned ...

in reality, so the spring hits it, it spins"
I'm not sure I'm understand about the spring?

Also, are you saying that the vanes have one heavier side making it naturally want to rest with the heavy side down? Or are the vanes in perfect balance?
Where I get confused is why when the vanes ...

greetings fellow gearheads!

I've built the beginnings of a ticker but am stumped.
A good working example of a scimitar has the last stage oscillating in both counter and counterclockwise rotations.
So...I can get mine to oscillate by putting a heavier weight on one leg of the three-armed wheel ...