A Stuart Twin Oscillator

Small? You call that small?? Why when we were kids we were forced to make a Wright Cyclone model so small we had to take electron micrographs of it just to see the raw barstock!

Quote from: vtsteamSmall? You call that small?? Why when we were kids we were forced to make a Wright Cyclone model so small we had to take electron micrographs of it just to see the raw barstock!

While walking back and forth to school in a blizzard, uphill both ways... 

Good times. 

I've just looked up the Elmers Tiny and yep, that sure is TINY - minimum requirement for me is that I can see the engine on the shelf once I've built it! 

Found a MEM thread https://www.modelenginemaker.com/index.php?topic=512.0

EDIT: just seen this one, it's really cool!

https://www.youtube.com/watch?v=xCmEh52UIrw

I didn't make this one, it was an estate find. It is pretty tiny though, 1951 date stamped on the bottom.

Dave

I did a radial version of a tiny years ago:
https://www.youtube.com/watch?v=wpYzBDk-1pY

That's amazing - reminds me of a sunflower, at speed doesn't even look like its moving! Dare I ask what is bore/stroke of each of the cylinders/pistons?

Quote from: Sanjay FThat's amazing - reminds me of a sunflower, at speed doesn't even look like its moving! Dare I ask what is bore/stroke of each of the cylinders/pistons?

It matches the original Tiny, 3/16" I think, just replicated around in a circle.

Did you build the (Shay?) locomotive above the Minirad engine on Sherline equipment?

Quote from: Oberst OswaldDid you build the (Shay?) locomotive above the Minirad engine on Sherline equipment?

Yes - that was my first big build, it is from Kozo's New Shay book, learned a LOT doing that one. Did that around 12 years ago.

Do you have a build series utube or a forum on that!  Would really like to see how that was done.  Blondihacks is doing a locomative but has larger machines than my Sherlines...  Serious thinking of buying Little Machine Shop hi-torque 7450 7x16 lathe just to do just a little bit bigger things than risers.   

Quote from: Oberst OswaldDo you have a build series utube or a forum on that!  Would really like to see how that was done.  Blondihacks is doing a locomative but has larger machines than my Sherlines...  Serious thinking of buying Little Machine Shop hi-torque 7450 7x16 lathe just to do just a little bit bigger things than risers. 

Yes, its here on the forum at:
https://www.modelenginemaker.com/index.php/topic,3778


I highly recommend  Kozo's  books!

I made a little steam engine, 4mm bore 8mm stroke.

https://www.youtube.com/watch?v=9tpH0FAYScQ

Very nice, I look at things like that and wonder about my eyesight and size of my fingers when trying to make such small item, maybe jewellers loupe is required 

The new tooling arrived in the nick of time - I made some brackets out of brass and the standard is now standing to attention and firmly braced on the box angle plate ready for the various operations tomorrow