Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

OKMO Microcosm Model M31 Vertical Steam Engine Single Cylinder

First run on live steam of this beautiful brass casted vertical steam engine. Really happy with DIY Modifications that I did and the two timber plinths. Made lots of items using my metal lathe and milling machine. The condenser pot was made using three copper plumbing items cut down on the bandsaw, turned on the lathe and drilling and tapping on the milling machine. The inline lubricator needed a complete rebuild and needed to be silver brazed back together. Not sure if the lubricator was made by Stuarts in the U.K or not, I made a new screw top for it and knurled it and put an Australian Miniature Steam Models MSM turn wheel on.

A marvelous plant Jim, I loved the column of steam coming up from your chuff pot. Stunning job of it mate 😊

Thanks Bruce, its a really nice engine.
After its run in I'm looking forward to seeing how slow it will run and what its like running a Baker Fan.

Hi Jim, That looks like a marvelous little engine!

It runs great, looks great, and you have a very robust boiler!

and....

It's nice to see your face on the embed image!  

Looking good, my friend!

Gil

Bonjour,

The M30, also very nice machine to my opinion, has a great advantage compared to the M31, it has no dead points:

Operates at a few PSI.
My lonely small concern would be the size of the flywheel, quite large to be installed in a hull.

And if you know French steam designers, André LECOMTE created his famous AL5 a few decades ago:

A little family resemblance?

Thanks one and all.....appreciate the replies as always.