Search found 150 matches

by ChipsAhoy
Thu Oct 17, 2019 9:01 am
Forum: Casting & Foundry Work
Topic: Casting RR Truck frames
Replies: 0
Views: 54

Casting RR Truck frames

Did a test run on 1" scale, "one piece" arch bar trucks. Had a few inclusions from migrating petrobond (operator error) 1.5 scale trucks are now coming out perfect, once there is a stock pile We will make them available. These are pics of the 1" ones showing the faults. IMG_0181.JPG IMG_0183.JPG 157...
by ChipsAhoy
Thu Oct 17, 2019 8:54 am
Forum: Live Steam Marketplace
Topic: Modeltec Mag issues wanted
Replies: 1
Views: 228

Re: Modeltec Mag issues wanted

I recieved a cooy of the info from the March 1994 Modeltec. Thank you very much!!!
Now I only need to track down the Jun/Jul 2000 CliShay articles.
Scotty
by ChipsAhoy
Tue Oct 15, 2019 5:58 pm
Forum: Grand Scale Railroading
Topic: A wish list for large scale castings
Replies: 40
Views: 3816

Re: A wish list for large scale castings

mattmason wrote:
Sat Sep 14, 2019 7:22 pm
That's awesome Scotty. I will look for your PM. I have a ton of wheels, just no frames--yet..
Matt:
We have the first set done. I will PM you photos and info. I don't wish to hijack this thread.
Scotty
by ChipsAhoy
Mon Oct 14, 2019 9:30 am
Forum: Build Log
Topic: Another CliShay Build
Replies: 10
Views: 3436

Re: Another CliShay Build

Are you making the boiler an 8" water-in-tube like Maynard did, or have you found an alternate?
Scotty
by ChipsAhoy
Mon Oct 14, 2019 8:55 am
Forum: Live Steam
Topic: Driver machining order
Replies: 15
Views: 752

Re: Driver machining order

I have a suggestion, and understand I am not a machinest, nor am I an accomplished steamer builder. I would use this sequence if at all possible. Knock off all the flash from the drivers so that they can be resonably placed on your mill table to accomodate..... Bore the axle holes Broach the axle ho...
by ChipsAhoy
Sun Oct 13, 2019 5:42 pm
Forum: Live Steam Marketplace
Topic: Modeltec Mag issues wanted
Replies: 1
Views: 228

Modeltec Mag issues wanted

Does anyone have for sale, copies of:
Modeltec, March 1994
And
Modeltec Jun/July 2000?
I'm interested in a pair of CliShay articles in those editions.

Thx Scotty
by ChipsAhoy
Thu Oct 03, 2019 7:44 pm
Forum: Build Log
Topic: Another CliShay Build
Replies: 10
Views: 3436

Re: Another CliShay Build

If one has the book, does that preclude the need for the Modeltec articles? Is the book a compilation of the articles? Was there more information in the articles subsequent to the books release? Is this the book "Building the CliShay" by Maynard?
Thx
Scotty
by ChipsAhoy
Sun Sep 22, 2019 8:35 pm
Forum: Casting & Foundry Work
Topic: Calculating Shrink On Cylindrical Pattern Part CI
Replies: 4
Views: 1121

Re: Calculating Shrink On Cylindrical Pattern Part CI

My "Shrink Rulers" say this... The brass 12" ruler is actually 12 - 3/16" long The aluminum & steel 12" ruler is actually 12 - 1/4" long The cast iron 12" ruler is actually 12 - 1/8" long. It says on the back " Machining Allowance" should be 1/8" for aluminum & cast iron, 1/4" for steel and 1/16" fo...
by ChipsAhoy
Sat Sep 14, 2019 2:39 pm
Forum: Grand Scale Railroading
Topic: A wish list for large scale castings
Replies: 40
Views: 3816

Re: A wish list for large scale castings

Matt: We intend to cast them for sale. Those you see in the above post are a test set. We have added tabs for hanging brake rigging. Also, the way we designed, one should be able to do the bulk of the machine work with one set-up. Which not only saves time, but should make keeping them "square" a no...
by ChipsAhoy
Sat Sep 14, 2019 9:03 am
Forum: Grand Scale Railroading
Topic: A wish list for large scale castings
Replies: 40
Views: 3816

Re: A wish list for large scale castings

IMG_20190806_205652.jpg IMG_20190806_205652.jpg That is the casting. We are making them for 7.5 guage and by just "shrinking" the drawing we are starting to pour these 'one piece cast archbars' for 1"scale 4- 3/4" guage. What I'm getting at is, only need to draw the part once then shrink or enlarge...
by ChipsAhoy
Fri Sep 13, 2019 10:45 pm
Forum: Grand Scale Railroading
Topic: A wish list for large scale castings
Replies: 40
Views: 3816

Re: A wish list for large scale castings

Using a small printer isn't too bad. This was done with four pieces glued together to make one pattern netting a pattern more than twice the size of the printer bed. There was of course a cope side and then a drag side. The original drawing was of one half only...printed, then a mirror was printed.....
by ChipsAhoy
Mon Sep 02, 2019 8:30 pm
Forum: Live Steam
Topic: Need source for graphited yarn for packing
Replies: 15
Views: 1942

Re: Need source for graphited yarn for packing

If I remember right...
PALMETTO... GRAFOIL.
is the brand names we used on valve stems. I don't have time to search right now, but you might try GIGGLE them.
Scotty