Sinter
San Francisco autonomous plastics factory, run in house: FDM prototype quotes in minutes with online ordering, plus injection molding from CAD intake through DFM, tool design and T1 sampling.
What they do
Sinter runs an autonomous plastics factory in San Francisco, built and operated fully in house. It offers FDM prototyping with quotes in minutes and online ordering, alongside injection molding.
Its injection molding work runs from CAD intake through DFM, tool design and T1 sampling of 50 shots. The company positions itself for prototype and low-volume plastic parts.
Capabilities
Injection molding
Injection molding from CAD intake through DFM, tool design and T1 sampling (50 shots).
3D printing
FDM prototypes with quotes in minutes and online ordering.
Commercial terms
Cost tier $$$ of $$$$, ProductFlo classification
Domestic in-house plastics factory serving prototype and low-volume work with online ordering.
Alternatives
Compare side by side- SyBridge Technologies
Full-lifecycle injection mold tooling group with 3D printing production and quick-turn molding across 17 locations.
- The Technology House
Ohio contract manufacturer combining 3D printing, CNC machining and injection molding, with NADCAP and ITAR registration.
- Stratasys Direct
Additive manufacturing service bureau with polymer 3D printing from prototypes to production and online quoting.
- Sussex IM
Wisconsin injection molder with medical and pharmaceutical cleanroom molding, covering prototyping through high-volume fulfilment.
- Star Rapid
China-based rapid prototyping and low-volume manufacturer offering injection molding, CNC machining and metal 3D printing in-house.
Sources
Not verified
- moq
- lead_time
- itar
- certifications
Last verified November 7, 2026. Listings are informational and are not endorsements. Cost tiers are ProductFlo's classification, not quotes: confirm pricing, lead time and capability with the vendor.