Tolerances and finishes on the Buss Precision's molds are tailored to the specific project, but most work is held to +/-.0002 tolerance on multi-cavity components, cavity, cores and parting lines.
Buss Precision Mold Inc. (BPM; Clackamas, OR) may be small in number with 10 employees, but possesses the technology—namely a DMC 105V Linear VMC from DMG/Mori Seiki USA, Inc. (Hoffman Estates, IL)—of a larger shop to tackle molds up to 36” x 48”. This includes collapsible core, unscrewing, overmolding tools and complex action designs needing extremely high accuracy across the entire machining envelope.
When evaluating new processes for mold manufacture, jig grinding is worth a second look as machine manufacturers have now added high accuracy features to guarantee repeatable results.
A look at the misinformation that prevents moldmakers from taking advantage of five-axis machining strategies to shorten total machining times.
The Secrets to Hard Milling Success