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On demand molding

On Demand Injection Molding: How the Model Actually Works

On demand injection molding sounds like manufacturing without inventory. Behind it is still a mold, ownership, and reorder pricing.

Model

What on demand really requires

Marketplaces promise parts when you need them. Sustainable on demand injection molding requires a stable cavity and clear ownership.

NetProto keeps the same hardened steel tool for your program. You own the mold once the tooling charge is paid, and reorders run without rebilling the tooling charge.

Ownership

Questions on demand buyers forget to ask

QuestionWhy it matters
Who owns the mold?Determines whether you can change suppliers
Same cavity every order?On demand breaks if each PO uses different steel
Tooling on reorder?Hidden fees destroy unit economics

Supply models

Owned steel tool versus anonymous marketplace mold

Your owned NetProto steel tool

  • Same tool ID across orders.
  • Instant quote and tracking on qualified programs.
  • No minimum order quantity.

Anonymous pooled tooling

  • Unclear cavity history.
  • Correlation risk between batches.
  • Tooling fees may reappear.

On demand readiness

  • Document approved sample from production steel.

  • Store CAD revision with each PO.

  • Plan safety stock if logistics lag demand.

Reorder path

Place the next order on the same tool

  • Instant quote platform
  • Project tracking
Warehouse shelf with molded parts from repeat production orders

Related

FAQ

On demand questions

Is this the same as instant quote?

Instant quote is how you price orders; on demand is how you plan reorders on one tool.

Next step

Set up on demand on one tool

Upload CAD to start. NetProto manufacturing is ISO 9001 certified.