Driver Casting Repro

[jlakes85]

Hi All,

My first attempt at a pattern and repro. Next step is to pour the 8002 again and get the plastic pattern. Thoughts/comments?

-jlakes85

[Greg_Lewis]

My thoughts and comments are: Congrats. Folks who haven't done that don't know how much work goes into it.

[Builder01]

Looks nice. Will this be in iron?

David

[jlakes85]

Thanks Dave, yes this will be gray iron.

Greg, I had to use 2 kwik cast gallon kits to get enough material..I made the pouring window probably by seconds..even with a few dry runs and a clean floor

[jlakes85]

There were some spots where it grabbed for one reason or another. Can anyone recommend a method to check over the negative before I pour the positive to avoid future issues?

[Fred_V]

Do you have enough draft on the pattern to let it release?

[jlakes85]

Hi fred,

Yes, I should be good on the major surfaces and I did use beeswax in the questionable corners. I think I screwed up by not getting the actual BCC release agent. I thought I could skate by using a furniture polish, as did McCord on YT when he poured that Wright brothers engine, but they was to release the pattern from the sand, not repro plastic..lesson learned l and I still have a master pattern to tell the tale..

[Fender]

I assume the pattern was a 3D-printed model. These often have ridges or lines on the surface, which must be filled with paint or sanded off to get a clean pull from the mold. Is this a problem with yours?

[jlakes85]

Hi Dan,

This pattern is made from poplar, piece by piece. Some of the joints were challenging to fit and might have some issue areas. I'm going to order the proper BCC release agent before pouring the repro

[Trainman4602]

Hi have made several videos about this process on you tube watch them

[Harold_V]

yes this will be gray iron.

Have you considered ductile instead? Far more reliable.

H

[Builder01]

yes this will be gray iron.

Have you considered ductile instead? Far more reliable.

H

Reliable? How does gray iron fail?

David