Search found 552 matches

by RONALD
Thu Jul 18, 2019 9:15 pm
Forum: Casting & Foundry Work
Topic: Casting Class
Replies: 0
Views: 95

Casting Class

If you have the $$$ and time, this class may be of interest: https://www.afsinc.org/conferences/cast ... s-workshop
by RONALD
Wed Jul 17, 2019 8:24 pm
Forum: Casting & Foundry Work
Topic: casting in the third world
Replies: 6
Views: 178

Re: casting in the third world

Third World was our world in 1906!

Photo #1: Below is a 1906 Photo out of a book on crucibles, how many OSHA violations can you find.

( I had put this on before.)

Photo #2: Here are Ean and I dressed to make OSHA happy!
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by RONALD
Wed Jun 26, 2019 10:42 am
Forum: General Discussion
Topic: Northern Tool 20% Off
Replies: 1
Views: 493

Re: Northern Tool 20% Off

Gotta keep and eye on their shipping costs, it can be rather high.
by RONALD
Thu Jun 20, 2019 5:31 pm
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 18
Views: 1748

Re: Fed up With Crummy Rotary Tools

Way back, I think Dremel had their factory in a suburb north of Chicago (North Chicago?), I remember their service was very prompt and correct. Today they are in Racine, I might think of driving that far, but I usually will buy a newer model, if it goes bad. Google: "dremel factory store" to read ab...
by RONALD
Thu Jun 20, 2019 9:06 am
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 18
Views: 1748

Re: Fed up With Crummy Rotary Tools

Here is a company that has a large selection of rotary tools, but their prices are not the best.

I have bought from them many times, and they do have a printed catalog they mail out on an almost monthly basis.

https://www.micromark.com/mini-powertoo ... tary-tools
by RONALD
Wed Jun 19, 2019 6:57 pm
Forum: Riding Scale Railroading
Topic: Patterened Sheet Metal
Replies: 0
Views: 500

Patterened Sheet Metal

In an ad from Rio Grande, they had some patterned copper sheets that may be of interest:

https://www.riogrande.com/search?q=shee ... Sort=False

The gold sheets are too expensive.
by RONALD
Thu Jun 13, 2019 9:47 am
Forum: Casting & Foundry Work
Topic: Baking Cores
Replies: 3
Views: 365

Re: Baking Cores

I have never baked a core, I use the CO2 (Carbon Dioxide)- Sodium Silicate method for making cores. It's a "Cold Box" method and requires no heat. There is no toxicity/fumes associated with this method. I usually will mull 400 milliliters of Sodium Silicate with 25 pounds of sand. I use AFS 105, but...
by RONALD
Thu Jun 13, 2019 9:16 am
Forum: Welding
Topic: Rough strength equivalent
Replies: 3
Views: 716

Re: Rough strength equivalent

Several years ago, a relative of mine was in maintenance at a paint company when they got rid of shelving that held heavy skids of gallon paint cans. He gave me several dozen of the ~ 10ft long rectangular tubing that held up those loads. They are almost the exact size of a wooden 2x4 and are 1/8th ...
by RONALD
Fri Jun 07, 2019 6:26 pm
Forum: Casting & Foundry Work
Topic: Things they dont tell ya when you start casting. :)
Replies: 26
Views: 7307

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

As I wrote in previous posts, I started with greensand in the night school class I was attending, and then when we switched to the other shop with Petrobond, I was convinced it was for me. I used that shop exclusively for many years, because I had a special permit even tho the night school had long ...
by RONALD
Mon May 27, 2019 1:48 pm
Forum: Riding Scale Railroading
Topic: New tool for Train Mountain
Replies: 7
Views: 3095

Re: New tool for Train Mountain

Looks like a great solution to moving switches, sorta analogous to that German video were they are putting down concrete ties and welded rail. I do not have hundreds of switches to move, so when I fabricate one, I use my Toro Dingo TX427WT with either of two attachments, I fabricated for it, to move...
by RONALD
Tue May 21, 2019 7:49 am
Forum: The Junk Drawer
Topic: Apple Mac laptop
Replies: 24
Views: 3725

Re: Apple Mac laptop

I’m a long time Apple user, started with Apple IIe when they first came out, then Apple IIgs until 2002 (17 years). Had no Internet, so to get it I bought a MAC G4 in 2002. It is still running but only for Photoshop CS2, I do not need to pay their cloud fees! Last summer I purchased a MacPro, partia...
by RONALD
Sun May 19, 2019 9:34 am
Forum: Casting & Foundry Work
Topic: Mixing Petrobond I and II
Replies: 2
Views: 619

Re: Mixing Petrobond I and II

Back in the 70's I joined a Night School Foundry class at the school where I taught Physics. There were two shop rooms, one green sand, the other Petro Bond sand. We first did only green sand, and then near the end switched to the Petro Bond room, wow, the difference was quit noticeable. After that ...