Search found 3030 matches

by gwrdriver
Fri Sep 28, 2018 8:06 am
Forum: Live Steam
Topic: Unusual boiler design
Replies: 6
Views: 1600

Re: Unusual boiler design

I would say you are not losing more heat on account of the plate thickness. Heat loss depends upon the thermal conductivity of the material, its thickness, and exposed area, so heavier plates would actually help with heat retention as it would take longer for heat to migrate though the material than...
by gwrdriver
Thu Sep 27, 2018 8:57 am
Forum: Live Steam
Topic: Printer patterns
Replies: 7
Views: 1670

Re: Printer patterns

Very impressive Rick.
by gwrdriver
Tue Sep 25, 2018 9:21 pm
Forum: Live Steam
Topic: kozo a3 5/32 and 1/8 tube wall thickness
Replies: 9
Views: 1657

Re: kozo a3 5/32 and 1/8 tube wall thickness

Refrigeration capillary tube.
by gwrdriver
Fri Sep 14, 2018 1:02 pm
Forum: Live Steam
Topic: Station, Road, Steam Stafford locomotive
Replies: 3
Views: 1669

Re: Station, Road, Steam Stafford locomotive

You might have a look at this account, which looks to be generally complimentary of the locomotive, and I've never heard a negative whisper about Station Road. http://www.gentoosjournals.co.uk/
by gwrdriver
Mon Sep 10, 2018 12:19 pm
Forum: Live Steam
Topic: welding boiler
Replies: 13
Views: 3156

Re: welding boiler

To answer the second part of your question . . . ideally stays should be perpendicular to flat surfaces and co-radial to curved surfaces, and also symmetrical. That is, identical on both sides of the firebox. That's the ideal, but things don't always work out that way. You can see in the illustratio...
by gwrdriver
Sat Sep 08, 2018 5:18 pm
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 3361

Re: Understanding types of copper?

From the Copper Development Association site:
https://www.copper.org/applications/plu ... _prop.html

Somebody should set them straight.
by gwrdriver
Sat Sep 08, 2018 12:40 pm
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 3361

Re: Understanding types of copper?

I think you've mis-applied Harris's flue formula which should be D² = L/55 to L/75. The object is to solve the equation (find "D") for a range of constants between 55 and 75 which has been proven to produce the optimum balance between gas flow and heat absorption in a fire tube. For L/55, D = .330"....
by gwrdriver
Thu Sep 06, 2018 8:27 am
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 3361

Re: Understanding types of copper?

I would agree with Soot on all counts . . . see your local pipe supply/plbg house and order seamless rigid Type K tube, or McMaster-Carr should have it. I always use Type K for it's thicker wall and, assuming good initial workmanship and proper care later, a longer life expectancy.
by gwrdriver
Fri Aug 17, 2018 11:32 am
Forum: Live Steam Marketplace
Topic: In Trade for #0-80 Nuts
Replies: 3
Views: 1152

Re: In Trade for #0-80 Nuts

Thanks Steve, that was exactly what I was looking for and I'll send you some tiny Unbrakos. Check your messages.
by gwrdriver
Tue Aug 14, 2018 4:41 pm
Forum: Live Steam Marketplace
Topic: In Trade for #0-80 Nuts
Replies: 3
Views: 1152

In Trade for #0-80 Nuts

I need a few dozen #0-80 nuts and have a quantity of Unbrako #2-56 x 1/2" Allen head alloy screws to trade. The nuts need to be either stainless or brass and scale or near scale hex.
Anyone have any #0-80 nuts lounging uneeded in a drawer?
by gwrdriver
Wed Aug 08, 2018 7:35 pm
Forum: Live Steam
Topic: New Year.....New project
Replies: 38
Views: 7845

Re: New Year.....New project

I sometimes refer to it as a Domino effect, . . one job has to be toppled, in order to start the next job, which in turn will cause another to topple, etc. I'm in the middle of a row of Dominoes right now and life keeps adding Dominoes to the far end.
by gwrdriver
Sun Aug 05, 2018 9:56 am
Forum: Live Steam
Topic: Un Lucky 7 Stack
Replies: 22
Views: 3688

Re: Un Lucky 7 Stack

steamingdon wrote:
Sat Aug 04, 2018 9:51 pm
Just thought people would like to see what can be done on conventional/manual machines. Jack Bodenmann does it all the time.
I like to. Well done Don.