Author Topic: Maudslay Marine Steam Engine on .70 scale  (Read 783 times)

Offline gbritnell

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Maudslay Marine Steam Engine on .70 scale
« on: March 01, 2019, 04:48:18 PM »
Gentlemen,
Here is a video of the Maudslay running. I played with it for hours yesterday and could only get it to run on one stroke. I played with the valve position until I finally gave up. I went back to the drawings and found that the porting in the valve is too big and therefore it overlaps the porting in the cylinder by too much. This morning I made another new valve, which I wasn't looking forward to because the ports and slots are .031 diameter and width. When I finished the valve I put a register mark on the face so that I would know where the port location was and could more easily time the engine.
I have to finish the reversing valve mechanism but putting air into both ports allow the engine to run very smoothly in both directions. I hope Chuck gets a chance to visit and see his engine.
gbritnell
Talent unshared is talent wasted.

Offline Jo

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #1 on: March 01, 2019, 05:18:06 PM »
 8) Nice

Jo
Usus est optimum magister

Offline kvom

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #2 on: March 01, 2019, 05:38:18 PM »
I like the slow motion.  Pretty engine!   :ThumbsUp:

Offline Johnmcc69

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #3 on: March 01, 2019, 05:39:54 PM »
That's just beautiful George!

 John

Offline Ye-Ole Steam Dude

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #4 on: March 01, 2019, 05:41:08 PM »
Hello George,

Beautiful.

Have a great day,
Thomas

Offline crueby

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #5 on: March 01, 2019, 05:42:22 PM »
Spectacular! Really responds to the throttle too!

Offline Don1966

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #6 on: March 01, 2019, 08:55:32 PM »
George thatís cooler then sitting in a tub of ice. Runs a treat!... :praise2:


 :cheers:
Don

Offline b.lindsey

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #7 on: March 01, 2019, 09:17:08 PM »
Wonderful George. I sure hope Chuck will get to see it too. What a fine little runner and just a beautiful engine on its own.

Bill

Offline scc

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #8 on: March 01, 2019, 10:07:55 PM »
That is a lovely engine George............Terry

Offline Dave Otto

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #9 on: March 02, 2019, 12:21:13 AM »
Very nice George!

Dave

Offline Art K

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #10 on: March 02, 2019, 01:36:41 AM »
George,
You did a very good job on the Maudslay engine. And as I have come to expect from you, when you have a problem with it you are a top notch trouble shooter. :ThumbsUp: Runs great, fast slow or any point in between.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Online Kim

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #11 on: March 02, 2019, 03:35:41 AM »
Beautiful engine, George!
Kim

Offline Larry

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #12 on: March 02, 2019, 03:41:46 AM »
Great model ! Thanks for sharing.

Offline gbritnell

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #13 on: March 02, 2019, 08:26:17 PM »
The engine is complete except it's going to need a base. Here's the video of the reversing valve working.
gbritnell
Talent unshared is talent wasted.

Offline fumopuc

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Re: Maudslay Marine Steam Engine on .70 scale
« Reply #14 on: March 02, 2019, 08:30:27 PM »
Hi George, a nice runner and perfect made, as always.
Kind Regards
Achim