Search found 1681 matches

by NP317
Thu Apr 18, 2019 10:07 am
Forum: Live Steam
Topic: steam locomotive emulator
Replies: 4
Views: 230

Re: steam locomotive emulator

A thought: The throttle primarily effects the cylinder VALVE CHAMBER pressure. The cylinder pressure is secondarily effected when the valve admits/exhausts steam to/from the cylinder for a portion of the stroke, which also varies the pressure. An interesting project. Are you assuming a "perfect" fir...
by NP317
Thu Apr 18, 2019 9:41 am
Forum: The Junk Drawer
Topic: Backing up computer files
Replies: 23
Views: 478

Re: Backing up computer files

All of our home computers have solid state "Hard Drives."
'Higher long-term reliability with no moving parts, and temperatures don't matter anyway.

And my steam locomotives don't have any magnetic surfaces to get damaged...
~RN
by NP317
Wed Apr 17, 2019 10:38 pm
Forum: The Junk Drawer
Topic: Backing up computer files
Replies: 23
Views: 478

Re: Backing up computer files

SteveHGraham wrote:
Wed Apr 17, 2019 2:52 pm
I have owned plenty of PC's. None ever came with a warning saying I couldn't use them in cold weather.
They just run slower...
~RN
by NP317
Wed Apr 17, 2019 10:35 pm
Forum: Live Steam
Topic: 12VCompressor for a Brake Car
Replies: 38
Views: 1076

Re: 12VCompressor for a Brake Car

Creative!
~RN
by NP317
Wed Apr 17, 2019 10:27 pm
Forum: Live Steam
Topic: Little Engines American Boiler
Replies: 16
Views: 915

Re: Little Engines American Boiler

Jesse:
What is the ratio of free gas area to grate area on your steel boiler?
Thanks,
~RN
by NP317
Wed Apr 17, 2019 10:21 pm
Forum: Live Steam
Topic: Steam Turbine Question
Replies: 10
Views: 656

Re: Steam Turbine Question

Nice and simple!
Thanks for sharing.
~RN
by NP317
Mon Apr 15, 2019 5:49 pm
Forum: Live Steam Marketplace
Topic: Wanted: Scale blow down valves
Replies: 12
Views: 1165

Re: Wanted: Scale blow down valves

steamingdon wrote:
Mon Apr 15, 2019 2:59 pm
NP317 don`t believe everything you read here. :wink:
True for all the internet!
~RN
by NP317
Mon Apr 15, 2019 9:59 am
Forum: Live Steam
Topic: 12VCompressor for a Brake Car
Replies: 38
Views: 1076

Re: 12VCompressor for a Brake Car

Having double-headed with Chris's long train, I can attest to the functionality of his air brake design.
It is capable of quickly stopping his train, and works well when slowing the mass.
Good design and application.
~RN
TM 7-18 #2 small.jpg
by NP317
Mon Apr 15, 2019 12:23 am
Forum: Live Steam
Topic: Shay Tender Side Sheets
Replies: 2
Views: 316

Re: Shay Tender Side Sheets

Secure a rivet at the ends, then rivet the center, and then keep riveting the center of each space between rivets, until all are in place. This distributes the metal deformations and stresses, and helps keep alignment over the riveted seams. If the side sheets are identical in layout and drilled uni...
by NP317
Sun Apr 14, 2019 1:11 pm
Forum: Live Steam
Topic: 12VCompressor for a Brake Car
Replies: 38
Views: 1076

Re: 12VCompressor for a Brake Car

Bill Shields wrote:
Sun Apr 14, 2019 11:23 am
maybe you can consider a 2000 PSI compressed air tank for paint ball...

a lot more punch in a tank of similar size....

or a SCUBA tank....one can fit in a car.....
Then you need to spend big $$s for a high pressure output air compressor to fill your portable tank...
~RN
by NP317
Sun Apr 14, 2019 1:04 pm
Forum: Live Steam
Topic: Little Engines American Boiler
Replies: 16
Views: 915

Re: Little Engines American Boiler

Nice! Better welding than I could do.
~RN
by NP317
Thu Apr 11, 2019 8:35 pm
Forum: General Discussion
Topic: Cutting Mats
Replies: 8
Views: 271

Re: Cutting Mats

I don't have a self-healing cutting mat.

I have self-healing fingers.
~RN