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Custom Manufacturing & Rapid Prototyping

3–5 Day Turnaround, Orange County-Based, Direct Line to Your Engineer

24Hr
Standard Lead Time
±0.05mm
Tolerance
30+
Materials Stocked
6+
Technologies Offered
Capabilities

From CAD file to your desk

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Rapid Prototyping
Functional prototypes from your CAD file in 24-48 hours, ready for form, fit, and function testing.
FDM Printing
Durable thermoplastic parts in ABS, PC, and nylon — built for jigs, fixtures, and end-use.
SLA Printing
High-resolution resin parts with smooth surface finishes and ±0.05mm feature accuracy.
Low-Volume Injection Molding
Production-grade parts from rapid ceramic and aluminum tooling — runs from 100 to 10,000 units.
Silicone Molding
Silicone cast parts for short runs and soft-touch components.
3D Scanning
Reverse-engineer legacy parts into production-ready CAD with metrology-grade scans.
About Us

Built in Orange County. Shipped everywhere.

Companies like Xometry, CraftCloud, and Protolabs are middlemen and outsource their part making, often times leading to weeks long lead times, and no control or interaction with the supplier. Mithril Plastics is a rapid-prototyping and production shop serving America’s industrial and manufacturing sectors. We run printers, molds, and casting lines under one roof — made in California.

We have grand ambitions beyond plastics, we hope you will join us!

Why Choose Us

Speed without the trade-offs.

About Us
24HR
Quotes in an hour, parts in a day
Instant quotes with machines and materials at the ready.
±0.05
Tolerances we stand behind
Inspection process and quality assurance at every step.
1:1
An engineer on every order
DFM feedback and direct communication — basically on-call.
USA
Made domestically, end to end
No middlemen, no outsourcing. Made in Orange County, California.
FAQ

Common questions.

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How fast can I get parts?
Provide us with a CAD / .STL file, your part can ship as soon as the next day!
How much do your services cost?
It depends. If you need design work, we charge a minimum of $65 on simple parts, plus material costs.
What is your minimum order quantity?
No MOQs.We do provide discounts on larger order sizes.
Which process is right for my part? What about materials?
If you are unsure, give us a call or drop us and email and we will respond within the day. We're happy to speak with you!
Do you work with hobbyists or small projects?
We provide personalized guidance on every inquiry. Even if we can't help, we can point you in the right direction.
How does your instant quote work?
Upload your file, select your materials and quanity, and send (or don't). Every inquiry is reviewed by a human for accuracy.
Blog

Opinions & Insights from Our Team

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Need parts by Friday?
Upload a file and get a quote back within the hour.
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Contact Us

Tell us about your part.

Phone
(909) 235 - 6689
Email
support@mithrilplastics.com
Shop
Orange County, California
Hours: Whenever you need us!