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Author Topic: My new steam engine project  (Read 23040 times)

TFL45

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My new steam engine project
« Reply #15 on: October 12, 2007, 11:57:55 AM »
Hi John,

Took my eyes of the site for a couple of weeks and return to find you up to your old tricks :great

This info might be elsewhere in this site; if so, my apologies in advance.

I noted a while back that Sandy made reference to a variety of valve gear linkages  - Hackworth, Joy, Stephensons, Crampton. Along the lines that if a picture is worth the proverbial, then an animated picture must be worth volumes, I've come across a program by Charles Dockstader that dynamically demonstrates some 34 types of valve linkage, including both inside and outside admission variants where applicable. In addition to seeing how each linkage functions at various user-controlled speeds (both forward and reverse), program allows various dynamic variables to be altered to view their impact on the overall valve dynamics. Even Bandit might get a headache!

A bit of a download (14 ZIP files at about 1.3 megs ea, expanding to 39 megs) but well worth the effort. Have run under Vista, Win 2000 and Win 98SE and everything functions except the sound is a bit wonky in Vista. :(

Files can be found at this web site: http://www.tcsn.net/charlied/ , last updated 29 Jul 07. Attached are a couple of screen shots.

BTW John - another fine build :clap2  

Floyd
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bogstandard

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My new steam engine project
« Reply #16 on: October 12, 2007, 12:14:51 PM »
Hi Floyd,
I'm like a bad penny, turn up when you least expect it.
I'm sorry to say I already have this on my computer, very good program though, it explains everything in such detail, pictures are always better than words.

John
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bogstandard

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My new steam engine project
« Reply #17 on: October 14, 2007, 12:15:36 AM »
A little update now.
Have made the steam chest and I am now working on getting the linkage from the new eccentric rod position and still retain the exact movement as the original. This entailed some rather critical drilling, so that is where I am up to on the photo, the shaping can come later. The sketch shows what I am trying to achieve.
Also on the photo, I bit the bullet and machined the 180deg slot in the flywheel for the slip eccentric. I just hope I don't regret going for this method of engine reversal.

John
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bogstandard

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My new steam engine project
« Reply #18 on: October 17, 2007, 06:54:32 AM »
Finally got the engine to a basic running state, so I did a vid as it is being stripped down now to finish off all the painting and polishing.

http://www.youtube.com/watch?v=SpjTo8o7d6E

Finshed engine in about a week.

John
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Offline Eddy Matthews

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My new steam engine project
« Reply #19 on: October 17, 2007, 06:59:28 AM »
Very impressive John - I'm amazed at how slow it will run!
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~ Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience ~

crash93

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My new steam engine project
« Reply #20 on: October 17, 2007, 08:59:29 AM »
Very nice , runs well to.

Peter
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TFL45

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My new steam engine project
« Reply #21 on: October 18, 2007, 01:48:00 AM »
John,

Nice 'Victorian' look to it. And not too shabby a runner, either!

Floyd
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bogstandard

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My new steam engine project
« Reply #22 on: October 18, 2007, 04:00:40 AM »
It isn't finished yet, it's now in pieces waiting to be painted and polished.

John
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bogstandard

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My new steam engine project
« Reply #23 on: November 02, 2007, 11:26:01 PM »
Here it is finished,
Sorry about the quality of the pics.

And here is the latest vid

http://www.youtube.com/watch?v=76FAAv-PB78

Job done!!

John
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Offline Eddy Matthews

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My new steam engine project
« Reply #24 on: November 03, 2007, 06:23:33 AM »
Very nice John - I noticed you've used a lot of very technical terms in the video though, and they confused me a little..... "It's had all it's doo-dahs fitted" and "a chuffer"  :hehe
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~ Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience ~

bogstandard

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My new steam engine project
« Reply #25 on: November 03, 2007, 10:46:37 AM »
Eddy,
When doing a vid, the first words that springs to mind are what get spoken.
I was trying to run an engine, hold a camera with a bad arm and trying to think at the same time, so you get rid of the hardest one to do, the problem is I do it all the time, forgetting to think.
What would you have called them? :lol:
Now that's a good subject for a post.


Stay stopped

John
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Offline Eddy Matthews

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My new steam engine project
« Reply #26 on: November 03, 2007, 10:52:09 AM »
Quote from: "bogstandard"
What would you have called them? :lol:

John


That's obvious John, I'd have called them "doo-dahs" and "a chuffer", but I'm no expert on these things! :)
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~ Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience ~

bogstandard

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My new steam engine project
« Reply #27 on: November 03, 2007, 11:05:40 AM »
Neither am I, I only make the things.

John
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crash93

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My new steam engine project
« Reply #28 on: November 03, 2007, 05:56:02 PM »
Very nice as usual , Ok John  so what is next , don't forget to set some time aside to get the braso out , or will  Bandit  do it during his xmas break from UNI.. keep up the good work.

Peter
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rayman

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Re: My new steam engine project
« Reply #29 on: October 29, 2008, 12:45:20 PM »
Hi bogstandard, very nice little engine. In your country called a "table" engine also was used in U.S. mainly as a small launch engine and surprisingly was fitted in the OTIS steam shovel of 1836. I have been looking for years for plans for same, now just have to get started on building. If you "google "Pearl Steam Engines" they build in single and twin versions and have them running on video, both are launch engines with S/L reversing. regards rayman
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