Model Engine Maker

Help! => Specific Engine Help => Topic started by: Roger B on August 08, 2018, 05:58:22 PM

Title: Breath Engines
Post by: Roger B on August 08, 2018, 05:58:22 PM
My middle granddaughter (10) has expressed an interest in engines. I'm not sure if it will last but I would like to encourage it. I seem to recall someone on here writing about breath powered engines (simple oscillators?  :headscratch:) If there is any form of design available would you be willing to share it?
Title: Re: Breath Engines
Post by: b.lindsey on August 08, 2018, 06:20:11 PM
Roger, you might check on the Thimble engine fron Liney machine here. https://www.minicastings.com/acatalog/Liney-Thimble--Plans--Liney_Thimble_Pl_DL.html#SID=57.
The plans are cheap and downloadable. It's not a wobbler but easy to build and mine will run on breath power.

Bill
Title: Re: Breath Engines
Post by: mklotz on August 08, 2018, 06:27:54 PM
There's this wobbler on Instructables...

https://www.instructables.com/id/Penny-Engine-micro-air-powered-engine/

Also, I've built the one Bill mentioned.  Mine also runs on breath power.  It's a very easy build, although might exceed the attention span of a ten year old.

For short attention spans a finger engine or even a turbine of some sort might keep them involved to completion.
Title: Re: Breath Engines
Post by: Zephyrin on August 08, 2018, 09:32:13 PM
most of the little steam engines would run on breath air, although sometime a good healthy breath (which I don't have) is useful...

https://photos.app.goo.gl/zmaMpP1nH79Lbc3H9
https://photos.app.goo.gl/fudBqBzUciTLd1V18
the blue prints of the small engine I did to repair this little loco is available here :


http://ti1ca.com/uj4v0clc-Moteur-07cm3-SE-2wm2-Moteur-07cm3-SE-2wm2.pdf.html
Title: Re: Breath Engines
Post by: zeeprogrammer on August 08, 2018, 09:52:39 PM
Roger, you might check on the Thimble engine fron Liney machine here. https://www.minicastings.com/acatalog/Liney-Thimble--Plans--Liney_Thimble_Pl_DL.html#SID=57.
The plans are cheap and downloadable. It's not a wobbler but easy to build and mine will run on breath power.

That reminds of the 'Rocker Engine'. Same piston idea (and no valve).
I remember a bunch of us made it but I can't seem to find my plans.

It had to be fairly easy to build  ;D ...at the time I had only built two Elmer engines and I wasn't very good.  ;D
Title: Re: Breath Engines
Post by: b.lindsey on August 08, 2018, 10:18:06 PM
It's the same engine Zee. Yes I remember the frenzy too!! It's a neat little engine though. The term "rocker" I think came from the tilting action of the piston but they were knock offs of the Liney design.

Bill
Title: Re: Breath Engines
Post by: Roger B on August 09, 2018, 07:37:36 AM
Thank you for the suggestions  :ThumbsUp:  :ThumbsUp:  :) I will have a look at them and see how easy it will be to convert the US designs to metric  ::)