Author Topic: Scrap Wobbler  (Read 343 times)

Offline PaulR

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Scrap Wobbler
« on: May 27, 2026, 04:16:57 pm »
While contemplating a couple of other simple engines I decided to use up some scrap to make a single acting oscillator. I didn't do a build log because a) it's too trivial to interest anyone here and b) it was quite ugly and probably shouldn't be described as engineering  :lolb:

All of the components except the massively oversized flywheel are from previous cock-ups, most having been sawn off other bits and almost all having plugged or re-bored holes (I think there were 7 in the cylinder  :o) I've yet to make a stand and will probably have to make a sensible flywheel but here is my dangling wobbler (or wobbly dangler)  :ROFL: It runs on next to nothing and is unnervingly quiet (no doubt the dangling helps in that regard though)!

<a href="https://www.youtube.com/watch?v=3OeDegJVoJ4" target="_blank">http://www.youtube.com/watch?v=3OeDegJVoJ4</a>

Designing around, and making an engine from, scrap parts is surprisingly time consuming and tedious, I probably won't do it again  :Lol:

Offline crueby

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Re: Scrap Wobbler
« Reply #1 on: May 27, 2026, 04:25:28 pm »
Nice!
I don't think I've ever seen an engine dangling on a string like that, a new trend?  :Lol:   Does that make it an aero engine?

Offline PaulR

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Re: Scrap Wobbler
« Reply #2 on: May 27, 2026, 04:54:08 pm »
Does that make it an aero engine?
Oooh, nice  :Lol:

Online Sanjay F

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Re: Scrap Wobbler
« Reply #3 on: May 27, 2026, 07:34:10 pm »
I like it - I reckon if that spun fast enough it would definitely induce a gyroscopic effect especially being suspended on a string; apologies I'm a bit of a gyro geek  ;D
Best regards

Sanjay

Offline PaulR

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Re: Scrap Wobbler
« Reply #4 on: May 27, 2026, 07:58:33 pm »
I like it - I reckon if that spun fast enough it would definitely induce a gyroscopic effect especially being suspended on a string; apologies I'm a bit of a gyro geek  ;D
I'll give it a try!

Offline crueby

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Re: Scrap Wobbler
« Reply #5 on: May 27, 2026, 09:06:14 pm »
If it took off flying, it would be a gyro-copter?  :Lol:

Offline Chipmaster

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Re: Scrap Wobbler
« Reply #6 on: May 28, 2026, 11:56:00 am »
Something to dangle on the Christmas tree perhaps ?

Andy

Offline PaulR

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Re: Scrap Wobbler
« Reply #7 on: May 30, 2026, 09:14:41 am »
Something to dangle on the Christmas tree perhaps ?
Just imagine a tree full of these, that would be quite lively!

Offline PaulR

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Re: Scrap Wobbler
« Reply #8 on: May 30, 2026, 09:24:00 am »
This one is finished. The base is black and the engine is just primed (as usual) because that's all the paint I've got and it's was all about using scrap/leftovers. I also did a bit of free-wheeling on the fly-wheeling for no reason other than practice.

<a href="https://www.youtube.com/watch?v=LGNRtrjDyHc" target="_blank">http://www.youtube.com/watch?v=LGNRtrjDyHc</a>






Online Sanjay F

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Re: Scrap Wobbler
« Reply #9 on: May 30, 2026, 11:47:12 am »
Fabulous, looks like a piece of modern art; the cubist engine!👍😁
Best regards

Sanjay

 

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