MAUDSLAY REVERSING GEAR ON MINIATURE STEAM ENGINE
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- Опубликовано: 19 фев 2019
- Description - A video of a Maudslay reversing gear on a miniature three cylinder steam engine. NOTE! MAUDSLAY IS MISS SPELLED IN MY VIDEO. THE CORRECT SPELLING IS MAUDSLAY.
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Hi, I am 15 years old, I live in Germany, so my english is not the best. But I want to say that I love your steamengines and your little inventions. Thanks for uploading!
Hi Tim, thank you for your kind remarks.
your English is nearly perfect! Just that steam engines is two words. :)
There is something seriously wrong with the fact that I have found time to watch various crap on RUclips but I haven't yet watched all your marvelous works of art on RUclips. I need to get my priorities straight. Thank you for sharing your gift.
THANK YOU...for sharing. Fantastic, love your little engines.
You are welcome. Thanks for watching.
Leslie, you are a super handy man to have around. I am very impressed in your work and very surprised that you haven't had more views on your builds, I will share your vids as much as I can to get the word out. Keep up the incredible work my friend!
Thank you, I appreciate that.
Hi Leslie
Greetings from Australia, I'm a new subscriber to your channel, your model engines are exquisite, simply works of art. Looking forward to viewing all your many other videos and hopefully in the future actually machining one myself.
Regards
Rob
Thanks for that thorough explanation! I think that might be the key to reversing a single acting poppet valve triple I'm designing.
Great job on that tiny engine!
beautiful!
awesome, haven't words!!!
I would love to be able to make something like this. You are extremely talented!
Thank you, I have been doing it for a very long time.
Bonjour Leslie,
Great little engines indeed, and thank you to explain us Maudlay's reverse principles. In scale 1, was it as used as Stephenson or Clindial valves reverses t you opinion ? I do not remember having seen a real one.
Besides this, I do not see any oil lubricator, especially with superheated steam, is it normal ?
Amicalement, Raphaël
Hi Raphael, I believe the Maudsley is the least common. I read that the Maudsley valve gear was used on some steam marine engines. I could not fine much information, but I wanted to try it on my 3 cylinder because it already had the gear driven valve shaft. All of my miniature engines require a little moisture for lubrication. I tried steam oil once and the engines would gum up and stop. So superheated steam is the enemy of these engine. Made from brass and using moisture for lubrication these engines will not last like the cast iron engines that use steam oil. But I think you could run one for a very long time before wearing it out. The horizontal boiler in this video originally had too much of the steam pipe suspended over the fire box. By bending it up so it is against the bottom of the brass boiler it conducts heat to the boiler and no more superheated steam.
Hello Leslie!
Finally got a chance to look at your channel.
Very impressive I must say; your ingenuity and productivity appear to be boundless! Glad you got Maudslay's reversing gear implemented and running. I like your idea with the staggered gears so that larger gears may be utilized.
Here are a couple of questions: You use drawn tubing for cylinders and valve chambers. What material do you use for your pistons and valves? Do you lap them together for a good fit? If so, what do you use for a lapping compound/abrasive? If not, what do you use for piston rings/piston seals? Thanks for your response.
All the best from Ontario, Canada. Wolfgang
Hello, Regarding my little steam engines the cylinders and valves are made from K & S Precision brass tube. It is half hard brass and has a very smooth and straight ID and needs no machining or polishing. The pistons and valves are made from free cutting brass rod and are cut to an OD about 0.001" smaller than the tubing ID. The pistons and valves can be polished, but it is not really necessary. A good finishing cut is sufficient. All of my tiny steam engines are run on low pressure moist steam and the piston and valve are lubricated by the moisture, with also helps to form a steam seal. I would be happy to send you my single cylinder steam engine plan if you are interested. My email address is lesproper@gmail.com By the way, thanks for posting your excellent steam engine video. It is what got me onto the Maudslay gear.
Hi Les, that is fascinating. I can appreciate that it must have been a real challenge to make the miniature, working Maudsley reversing gears for those steam engines. I had never heard of them before. I spent a considerable time trying to get my brain to understand how they work :-))As always, your precision miniature engineering is in a league of its own
Hello SteamerEdge, thanks for the comment.
Youre a god damn genius...can you design a pcp rifle pump that uses a roting crank moving multiple piston/plungers at once , something industrial like the 1800's lads would of bulit..big clunky sturdy efficient..🙂👍👍
Hey, thanks for the comment. I just have little machine tools, too small for something like that. I doubt I could build something like that anyway.
Fantastic.
How about some type of oiler?
Very GOOD. I have been designing a mini gear steam engine. But the manufacturing has not yet been completed.Jin
I look forward to seeing your mini gear engine. All of your stuff is the best quality.
small simple and pretty I'd like to build the various versions ...
you should build a live steam Shay locomotive with one of those engines.
Maybe some day I will.
That would be awesome!! That is kind of what I am working on, however it probably won't look as good as if les made one lol.
Very Nice job i knew you could make reverse on one of these babys
Take a look at dieter philips locomotive the reverse on that is also gears but with 2 gears
Hello Martin, I have seen Dieter's video I think. An even number of gears are required. I have engines with both 2 and 4 gear trains.
Leslie Proper
I was thinking you could use it for a single stroke marine engine
Maybe iam wrong
Where can I buy this engine on your movie?
You can't buy them. I build them from scratch and I don't have any for sale. Sorry.
Would this work on the little 2 cylinder you designed?
Nope, not unless the engine was redesigned with the valves on the sides and a gear driven valve shaft.
@@LeslieProper good point I recently did a cad drawing similar to your 2 cylinder and had it 3d printed in metal by shapeways I guess my next one will be 3 cylinder.
That is pretty cool, how does it work?
@@LeslieProper I don't know I'm still building it but it will be almost Identical to you 2 cylinder single acting engine
I have seen a few two cylinder engines, the valve gear has to be on the side. I am working on doing a design for this using a Stuart D10.
Bapak Belinya dimana itu ?
I would go for a cp prop.
I am not familiar with the term. Is that a propeller with blades that rotate?