Casting vs injection molding—which method works better?

jeff_barkley · 2025-05-24T14:56:17Z

I've been messing around with some small DIY projects lately, and I keep seeing people talk about casting versus injection molding. From what I gather, casting seems simpler and cheaper for small runs, but injection molding looks like it gives way more precise results if you're making a bunch of identical things. I'm kinda torn here...does injection molding justify the extra cost and complexity, or is casting good enough for most hobby-level stuff? Curious what others here prefer and why.

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Interior Walls, Ceilings, and Flooring

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wildlife399

(@wildlife399)

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- Had similar issues with injection molding—small miscalculations cost me big time.
- Considering resin casting next, but worried about durability long-term...
- Anyone have experience with resin parts holding up under daily use?

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dobby_carpenter

(@dobby_carpenter)

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"Considering resin casting next, but worried about durability long-term..."

Totally get your hesitation, but honestly, resin can surprise you. I've had custom resin handles on kitchen cabinets for over two years now—daily use, kids tugging at them—and they're still solid. Just pick quality resin and cure properly... durability won't disappoint.