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Material is Pattern Plank (red board).
This is the durable, heavy tooling plank. Wears allot like aluminum from my experience.
I see how you used the boundary to prevent machining the large flat area with a small scallop step over. Good tip.
I suppose you can just go back and machine the large flat with an appropriate tool and step over to get it machined efficiently.
And you are correct, most foundries don't "require" the tooling to be polished. It's a point of pride for myself and something that I was taught to do when producing tooling.
The casting will only be as good as the pattern tooling.
But you are correct, most foundries don't worry about polishing the surface of the pattern & core box.
With 3D printed sand molds you would be surprised with the amount of surface finish. Some are fairly coarse. In the case of a machined sand mold (Southern Cast Products - Jonesboro) the surface finish of the mold is fairly rough and it still seems to produce a good casting finish once it has been shot blast & machined. ![]()
Thank you for the tips, I will keep playing around with it and see how much time we can shave off the program.
Since most pattern tooling programs are used 1 time it makes it harder to spend allot of time dialing in the program so you usually try to find the low hanging fruit for optimization.
Again, thank you.
Nate
Fusion