Search found 1118 matches

by NP317
Thu May 24, 2018 9:20 am
Forum: Build Log
Topic: Constructing the Martin Lewis Little Engines Northern Tender
Replies: 193
Views: 41766

Re: Constructing the Martin Lewis Little Engines Northern Tender

SOOO much effort with fixturing!!
But that's how we get repeatable results.
Nicely done.
~RN
by NP317
Thu May 24, 2018 9:15 am
Forum: General Discussion
Topic: Thin workholding suggestions
Replies: 10
Views: 298

Re: Thin workholding suggestions

Glenn: Onlinemetals.com They are physically located at the SE corner of the Ballard Bridge in Seattle! Walk-ins are welcome. You can cruise through several shelves of scrap ends, or get the catalog materials. Check them out online to see if they have what you want. I've used them for 20+ years, incl...
by NP317
Thu May 24, 2018 9:09 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 79
Views: 8394

Re: Woodinville Shops

Glenn: I am not attending the Triennial this time around. Simply too many people for me this year. Silly, because it's only a 4 hour drive from my home! But maybe I'll decide to stop in anyway for a day or two. We'll see. I will be attending the Ops meet, and look forward to time with my Kitsap Live...
by NP317
Wed May 23, 2018 5:56 pm
Forum: General Discussion
Topic: Another "How to make" question
Replies: 9
Views: 248

Re: Another "How to make" question

3D print the pattern.
There are many available resources to have this done.
~RN
by NP317
Wed May 23, 2018 5:54 pm
Forum: Welding
Topic: Micro torch?
Replies: 6
Views: 127

Re: Micro torch?

I have an oxy-acetylene set (with regulators) and just need a pinpoint torch. I simply install the smallest tip in my oxy-acet torch assembly, and keep the balanced flame small. I do all my small-piece plumbing silver brazing this way. Yes, I COULD melt some of the parts with this setup, but I don'...
by NP317
Wed May 23, 2018 10:26 am
Forum: General Discussion
Topic: OT Using DryGas in alcohol blended gasolene
Replies: 9
Views: 169

Re: OT Using DryGas in alcohol blended gasolene

I ran my 1970 Datsun 1600 truck for 360K miles, although with one engine rebuild and a later replacement with an 1800cc rebuilt long-block that was available. Along the way I installed a 5-speed tranny, two replacement rear ends, and the entire brake system, new drums included. Body metal rot was th...
by NP317
Wed May 23, 2018 10:11 am
Forum: Live Steam
Topic: Is Good Boiler Care Enough?
Replies: 7
Views: 520

Re: Is Good Boiler Care Enough?

Ouch! I've seen full-size logging locomotive boiler tubes looking like that. Ugly for sure. When we retubed the steam traction engine boiler last year at the Western Aeronautic And Automobile Museum in Hood River, Oregon, the tubes were similarly trashed. Makes me a believer in proper water treatmen...
by NP317
Wed May 23, 2018 10:02 am
Forum: Grand Scale Railroading
Topic: Woodinville Shops
Replies: 79
Views: 8394

Re: Woodinville Shops

Classy, Glenn!
As usual.
~RN
by NP317
Tue May 22, 2018 10:02 pm
Forum: Live Steam
Topic: Is Good Boiler Care Enough?
Replies: 7
Views: 520

Re: Is Good Boiler Care Enough?

I basically use the same boiler maintenance as described by cbrew. Description of the milky water at Train Mountain rings true. Daily complete blow downs and new water the next day work well. I also use LSB in the same amounts described by cbrew, and the interior of my 15-year-old Ten Wheeler's boil...
by NP317
Sun May 20, 2018 9:59 pm
Forum: Riding Scale Railroading
Topic: Erskine Tramway
Replies: 249
Views: 34062

Re: Erskine Tramway

What fun for all !
~RN
by NP317
Sun May 20, 2018 10:15 am
Forum: General Discussion
Topic: Scale weight
Replies: 6
Views: 230

Re: Scale weight

Coefficients of friction remain the same regardless of weights involved. (I think...)
They are a function of the specific materials in contact.
Traction results from weight and that friction.
So yes, greater than scale weight increases traction.
~RN
by NP317
Sun May 20, 2018 10:11 am
Forum: Casting & Foundry Work
Topic: Things they dont tell ya when you start casting. :)
Replies: 7
Views: 195

Re: Things they dont tell ya when you start casting. :)

As part of teaching Manufacturing Process at the Univ. of Washington, Seattle, WA, I taught simple aluminum casting foundry processes to our Mechanical Engineering students. We were fortunate to have an induction furnace. Safer for such teaching, 'cause no open flames. I always used a refractory-lin...