By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for Stewart Hart

Here is a list of all the postings Stewart Hart has made in our forums. Click on a thread name to jump to the thread.

<< First < Prev 29 30 31 32 33 34
Thread: Three Cylinder Steam Radial
24/01/2010 10:16:04
Hi Paul
 
It uses an orbital valve, I tried taking a video of the valve action with the steam chest cover off but couldn't get the vocus correct. Basicaly what you have is two flats at the end of the crank these engauge with a slot on ta return crank which has an off centre drive pin that drives the orbital valve openening and closeing the valve ports.
 
If you email me on [email protected]  i'll post you a sketch of the system.
 
Cheers
 
Stew
24/01/2010 02:16:10
Hi David
 
Thanks for your kind comments, it was a real enjoyable engine to build, if you look on the madmodder.net forum you can follow the build log, just do a search for three cylinder radial and you'll find it.
 
All the best
 
Stew 
22/01/2010 19:15:04
Just completed this Three cylinder radial derived from the Cygnet Royal, and Elmers Radial engine, with additional design changes.
 
Her's a video of it running
 
[IMG]http://i431.photobucket.com/albums/qq32/sbwhart/Rotary%203%20cylinder%20steam%20engine/IMG_2029.jpg[/IMG]
 
 
Enjoy
 
Stew
Thread: Brass Shell Case
12/01/2010 20:57:10
I've cut back some 40mm bofers cases, as suggested the best way is to use a saw a 4.5" will be quite thick so an ordinary hack saw will do fitted with a fine tooth blade:- mark around the case first to give you a guide, for what you want it for it will turn out a great job.
 
Have fun
 
Stew 
Thread: Ball Turning
25/11/2009 18:46:04
Hi John
 
Here's a nice video of a ball turner in action.
 
http://madmodder.net/index.php?topic=282.0
 
Enjoy
 
Stew 
Thread: Building LBSC 31/2" Mabel
21/11/2009 12:32:50
HELP
 
I've just made the boiler feed pump and there is no way I can get it to fit between the frames as shown in the drawing, as any one got a completed Mabel out there who can post a picture of how it fits.
 
Thanks
 
Stew 
18/11/2009 18:58:23
Just a quick update, I'll be remaking the slide valve picked up some material at the Midland expo.
 
Just completed the lubricator I didn't follow Curley's design I'm not to keen on the spring and ball none return valve, instead I followed Nevile Evans's design for his STOW build (Pt 31 Vol 202 issue 4352) and it worked a treat here's a video of it running under drill power just to give you the idea.
 
 

Cheers
 
Stew 

Edited By Stewart Hart on 18/11/2009 18:59:54

Edited By Stewart Hart on 18/11/2009 19:05:12

Thread: Steering Wheel
08/10/2009 20:13:29
Hi Ken
 
I made my own all you need is a rotary table
 
If you look at my photos I've added an album for the reversing wheel I made for my loco a little smaler than the mini wheel but gives you an idea of what you can do.
 
 
Cheers
 
Stew 
 

Edited By Stewart Hart on 08/10/2009 20:40:47

Thread: Small Milling Machine
28/09/2009 07:28:39
Hi Dave
 
Have got a seig X3 and I'm very pleased with it as for the gear issue with the X2 a lot of people have converted to belt drive to get round the issue of the plastic gears, its not a very difficult job I think you can buy a kit to do it. You can find more information on mills her
http://madmodder.net/index.php?board=6.0
 
Hope this helps
 
Stew 
Thread: Building LBSC 31/2" Mabel
25/09/2009 07:15:03
Hi John
 
Thanks for your advice: you've confirmed my fears that modifying the slide would effect efficiency I just couldn't believe that Curly got it wrong. In the six weeks I was trying to get it set I must have made every mistake in the book plus a few new ones. I've got a tooling project well underway so I'll get that completed, pick up some material from the midland exhibition in Oct and have another go.
 
When I joined up the coupled wheel it ran ok but not as freely, and then one of the coupled wheels became lose on the axle (only glued at this point) so I think I may have the quartering slightly out that and a wobbly driven wheel I have one or two other things to sort out.
 
As you may have guised this is my first build, I'm dreading starting the boiler, but hay that's all part of the fun and adventure.
 
Once again thanks for your advice much appreciated
 
Stew 
 

24/09/2009 19:58:24
Hi Mark

I used a laser cut chassis I'll look up where I got it from it went together  great my only error was to drill both sides for the reverser had to put a couple of counter sunk rivets in to cover the mistake up. The biggest problem I've had so far is setting the slide valve timing spent over 6 weeks trying to get it sorted ended up working out the sizes for myself, once I did that it ran no problems. I never thought at the time to ask for help on her but things seemed a bit slow, but I suppose they have just started.

You can follow my build so far on this forum http://madmodder.net/index.php?topic=547.0

I've put it to one side for a couple of months to do other thing (workshop related), I was getting a bit frustraited with the timing so decided that a change would be as good as a rest.


I'll be picking it up again I don't give up on things I always see them through.

Thanks for contributing

Stew
24/09/2009 16:28:32
Well it looks like I'm the only one in the world building this loco.
 
Managed to get the chase running on air not without some difficulties ended up having to go back to basics with the the slide valves and redesign them with this done it started no problem see vid, can't believe that Curley got it so wrong or it it something I've done, as anyone else had similar problem.
 
Hoping for a reply
 
Stew  
08/07/2009 18:44:09
Hi is there anyone else out there building this loco

[IMG]http://i431.photobucket.com/albums/qq32/sbwhart/JUMBO1.jpg[/IMG] 
Thread: Posting Photos
11/06/2009 10:58:31
It would be usfull if the forum had the facility for you to add photos as part of your communitions when posting to a threads. This facility is available to all other forums I contribute to and is very informative and great help in explaining things:- one pic is worth a thousand words.
 
Stew
<< First < Prev 29 30 31 32 33 34
Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate