From the course: Additive Manufacturing: Metal 3D Printing
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Part geometry considerations
From the course: Additive Manufacturing: Metal 3D Printing
Part geometry considerations
- [Instructor] The size of your part and its geometry are considerations in choosing a metal 3D printing technology. Historically, metal injection molded parts were required to be small, on the order of 100 cubic millimeters, to be certain that all the binder could be removed in a reasonable amount of time. Since the filament and powder binder systems are using very similar materials, there is some limitations on part size. - [Instructor] The real driver of debinding time is how thick the thickest walls are and keeping those walls consistent throughout the print. The time required is a function of the maximum thickness of a part, assuming the part is solid. In other words, you want a consistent distance for the debinder to penetrate and for heat to penetrate during sintering. Manufacturer, Markforged, has an online design guide that you can find on their site shown here. It suggests thinking of the maximum part…
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