Search found 278 matches

by jscarmozza
Thu Feb 14, 2019 7:16 pm
Forum: Riding Scale Railroading
Topic: Building a model of a GG1
Replies: 14
Views: 2569

Re: Building a model of a GG1

Yes, the copper strips are bus bars. The engine has 12 motors and I concluded that bus bars would be the best way to connect them all (I hope).
by jscarmozza
Tue Feb 12, 2019 1:33 pm
Forum: Welding
Topic: Phoson 0 brazing rod
Replies: 6
Views: 397

Re: Phoson 0 brazing rod

I did some further research and found that Sil-Fos 15 is not recommended if exposed to sulfur or steam as would be the case in a copper boiler, and that phosphor/copper brazing alloys (Phoson) tend to make brittle joints. So far that's all I can find, but it's enough to resurrect my concern for how ...
by jscarmozza
Tue Feb 05, 2019 9:19 am
Forum: Welding
Topic: Phoson 0 brazing rod
Replies: 6
Views: 397

Re: Phoson 0 brazing rod

Ok guys, you just opened an old wound...does the sulfur in coal really affect Sil-Fos and Phoson solder, I hear so many different opinions that I don't know what to believe. I've been running my LE Atlantic on charcoal (real wood charcoal that I make myself) because I suspected that the LE boiler wa...
by jscarmozza
Mon Feb 04, 2019 5:05 pm
Forum: Welding
Topic: Phoson 0 brazing rod
Replies: 6
Views: 397

Re: Phoson 0 brazing rod

Thanks Harold, looking forward to giving this stuff a try. John
by jscarmozza
Mon Feb 04, 2019 4:01 pm
Forum: Welding
Topic: Phoson 0 brazing rod
Replies: 6
Views: 397

Phoson 0 brazing rod

I have never used this type of brazing rod, but I understand that if used on clean copper, brazing is done without flux. My question is how is oxidation of the base metal prevented when applying heat? Is it through flame manipulation, oxidizing or reducing, or some other technique? Thanks, John
by jscarmozza
Sun Jan 27, 2019 1:44 pm
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 522

Re: Release agent question

I'm not familiar with the Furan process, can you explain it Harold...reason being, I still use shellac to finish my patterns.
by jscarmozza
Sat Jan 26, 2019 8:59 am
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 522

Re: Release agent question

I still make my patters the old fashion way, out of wood. I'm amazed at the power of the 3 D printer, but I just don't want to make the investment in time and money to learn CAD and purchase the all equipment, besides, this is my hobby, if I was doing it as a business it would be a different story. ...
by jscarmozza
Fri Jan 25, 2019 6:34 pm
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 522

Re: Release agent question

Thanks guys, I'll give that a try.
John

P.s. Nice work Chips!
by jscarmozza
Fri Jan 25, 2019 4:24 pm
Forum: Casting & Foundry Work
Topic: Release agent question
Replies: 9
Views: 522

Release agent question

I would like to make a core using sodium silicate and harden it in the core box to pick up some fine details, can anyone recommend a release agent?
Thanks, John
by jscarmozza
Sun Jan 20, 2019 12:32 pm
Forum: Live Steam Marketplace
Topic: WTB:Live Steam Magazine Sept/Oct 1998 & Nov/Dec 1998
Replies: 1
Views: 383

Re: WTB:Live Steam Magazine Sept/Oct 1998 & Nov/Dec 1998

Jim, are you a member of NJ Live Steamers? If you are I'll give you the two issues at the club, if not send me a PM with your mailing address and I'll mail them to you. John
by jscarmozza
Wed Jan 16, 2019 8:47 am
Forum: Live Steam
Topic: 3/4" scale turbogenerator drawings
Replies: 4
Views: 710

Re: 3/4" scale turbogenerator drawings

If you are interested, an alternate to the plans you are looking for may be a 2 part article that appeared in Live Steam Magazine, Sept./Oct. 1998 & Nov./Dec. 1998 by Richard Chiapparelli. Also, a year or two ago there was a lively discussion here regarding turbine wheel designs. Check them out, the...
by jscarmozza
Tue Jan 01, 2019 2:51 pm
Forum: Live Steam Marketplace
Topic: 1" Scale Bobber kit ****ALL SOLD****
Replies: 12
Views: 1717

Re: 1" Scale Bobber kit

I just had the opportunity to see one of your kits recently purchased by a member at NJLS...very nice! I'm sorry I didn't buy one when they were available, I'll be quicker on the draw next time they come up for sale.