30ft 1890's navy steam launch 1/6th scale

[crueby]

How are you melting the brass?  Don't recall, did you ever show your casting setup?

[tghs]

Stacked fire bricks to form a box, small crucible, mapp gas torch,, I do have a small furnace if I need to melt larger amounts but will need to get a propane tank,,.. I'm calling this a good trial run!!! wasn't expecting much!!! I can calculate the needed brass by weight next time..

[tghs]

decided a core mold that could handle a little abuse was in order,, waxed well, pack filled with extra, clamped together and more sand mix beat in through the 3 openings.. did a little work on the master, filled and thickened the foot, (as long as it cast fully I can thin that section back on the mill.. maybe a pour on Monday..

[Dave Otto]

This is an interesting process, is there a reason that you didn't use a sodium silicate bonded core?

Dave

[tghs]

1. it's a very small core
2. I don't have it on hand..
3. I may give it a try later...
 

[Dave Otto]

Cool, thanks!