A phone case is a thin-walled shell of about 30 cm³ printed in flexible TPU, the material that actually survives drops and repeated flexing. TPU costs more per gram than PLA and prints slowly, so a custom case from a shop typically lands in the $10–$20 range — competitive with mid-tier retail cases, with the upside that it fits any phone model, including ones no accessory maker supports.
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Price breakdown
| Material | $0.73 |
| Machine time | $1.50 |
| Labor (setup) | $5.00 |
| Markup | $2.17 |
| Estimated price | $10.00 |
What drives the cost
TPU prints slowly
Flexible filament extrudes reliably only at low speeds, so machine time — not material — is the biggest line item for a case.
Wall thickness matters more than infill
A case is nearly all perimeter walls. Bumping infill barely changes the price; thicker walls or a taller lip changes it more.
Custom fit is the value
For discontinued or niche phones, a custom-printed case is often the only option — that's what justifies the price over mass-produced cases.
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Get an exact quote Run a shop? Start freeFrequently asked questions
What material is best for a 3D printed phone case?
TPU (thermoplastic polyurethane). It's flexible, grippy, and impact-absorbing. PLA and PETG cases are rigid and tend to crack when flexed around a phone.
Is a 3D printed case cheaper than buying one?
For popular phones, retail wins on price. For older or uncommon models where cases aren't sold, printing at $10–$20 beats not having a case at all.
How long does a phone case take to print?
Usually 3–6 hours in TPU at conservative speeds. Rigid materials print faster but make a worse case.