You need to choose the right fillet radius for strong and accurate parts. For vacuum casting fillet radius, experts suggest using at least a quarter of the wall thickness, not less than 1.5 mm, or a minimum of 0.5 mm for very small features. A good fillet helps the material flow better into the mold. It also reduces sharp corners that can cause weak spots or defects. Key Takeaways Use at least a 1.5 mm fillet radius for most parts. This helps stop weak spots and keeps parts strong. For small features, use a fillet radius of at least 0.5…
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