Search found 225 matches
- Wed Nov 08, 2023 4:10 am
- Forum: Casting & Foundry Work
- Topic: SRC Model Pro Polyurethane Casting Resin (Amazon)
- Replies: 6
- Views: 2937
Re: SRC Model Pro Polyurethane Casting Resin (Amazon)
I think the kwik cast is d85 and this stuff is d75 when it sets up. Not sure how much of a difference that it
- Tue Nov 07, 2023 7:47 pm
- Forum: Casting & Foundry Work
- Topic: SRC Model Pro Polyurethane Casting Resin (Amazon)
- Replies: 6
- Views: 2937
Re: SRC Model Pro Polyurethane Casting Resin (Amazon)
Hi Harold,
Just being able to use prime to get material within a day or two and usually free shipping
Just being able to use prime to get material within a day or two and usually free shipping
- Tue Nov 07, 2023 9:37 am
- Forum: Casting & Foundry Work
- Topic: SRC Model Pro Polyurethane Casting Resin (Amazon)
- Replies: 6
- Views: 2937
SRC Model Pro Polyurethane Casting Resin (Amazon)
Hi All,
I'm trying to understand possible objections to using this over something like BCC qwik cast for pattern and core box construction. This would be nice to use because of the convenience of Amazon e.t.c. Let me know. Thanks again!
Regards,
Jlakes
I'm trying to understand possible objections to using this over something like BCC qwik cast for pattern and core box construction. This would be nice to use because of the convenience of Amazon e.t.c. Let me know. Thanks again!
Regards,
Jlakes
- Wed Oct 27, 2021 4:06 am
- Forum: Grand Scale Railroading
- Topic: 3" Scale Hudson Castings Recovered?
- Replies: 0
- Views: 14093
- Thu Apr 02, 2020 8:46 pm
- Forum: Live Steam
- Topic: Slide Valve Cylinder Castings
- Replies: 17
- Views: 14658
Re: Slide Valve Cylinder Castings
I did all the passages as plugs first the poured plastic or plaster boxes..i didn't have the enthusiasm (or skill) to whittle out the negative core boxes
- Thu Apr 02, 2020 3:26 pm
- Forum: Live Steam
- Topic: Slide Valve Cylinder Castings
- Replies: 17
- Views: 14658
Re: Slide Valve Cylinder Castings
Looks great. My foundry told not to bother mounting to a board. I just finished doing a pattern for the valve plate. I'm still looking at that bottom corebox photo..very cool
- Mon Mar 23, 2020 5:48 pm
- Forum: Live Steam
- Topic: Core Boxes: Why were they usually made before the pattern?
- Replies: 9
- Views: 7493
- Sun Mar 22, 2020 6:17 pm
- Forum: Live Steam
- Topic: Core Boxes: Why were they usually made before the pattern?
- Replies: 9
- Views: 7493
Re: Core Boxes: Why were they usually made before the pattern?
Hi Pat, Gotcha. I think that would imply that the prints were 'poured' from the boxes, but in industry videos from the 50's where they mentioned the boxes were built first, the patterns still had seperately attached wooden core prints. This is why I was scratching my head..it wouldn't seem to matter...
- Sun Mar 22, 2020 11:12 am
- Forum: Live Steam
- Topic: Core Boxes: Why were they usually made before the pattern?
- Replies: 9
- Views: 7493
Core Boxes: Why were they usually made before the pattern?
Hi All,
I've been wondering about this, but can't seem to get a definitive answer. Any feedback is much appreciated.
Regards,
John
I've been wondering about this, but can't seem to get a definitive answer. Any feedback is much appreciated.
Regards,
John
- Sun Mar 01, 2020 12:48 pm
- Forum: Live Steam
- Topic: Slide Valve Cylinder Castings
- Replies: 17
- Views: 14658
Re: Slide Valve Cylinder Castings
Rudd, There were core prints for each port, about 2 inches tall, 2 degree taper on each side. On the cylinder bore side, i left about 2 inches of extra length for a core print. The exhaust passage was the most concerning, as one side dead ends within the cylinder, leaving only the valve face side fo...
- Sun Mar 01, 2020 10:20 am
- Forum: Live Steam
- Topic: Slide Valve Cylinder Castings
- Replies: 17
- Views: 14658
Re: Slide Valve Cylinder Castings
Hi Frank,
Spacing between ports in supposed to be 5/16, which is the same width as the power ports. Exhaust port is supposed to be 1/2 inch wide.
-John
Spacing between ports in supposed to be 5/16, which is the same width as the power ports. Exhaust port is supposed to be 1/2 inch wide.
-John
- Sat Feb 29, 2020 12:13 pm
- Forum: Live Steam
- Topic: Slide Valve Cylinder Castings
- Replies: 17
- Views: 14658
Re: Slide Valve Cylinder Castings
Hi Marty,
This is for a 5" scale 15" gauge engine.
Regards,
John
This is for a 5" scale 15" gauge engine.
Regards,
John