Question 1

What should I upload for a prototype molding quote?

Accepted Answer

Upload 3D CAD (STEP preferred) plus any drawings/specs defining CTQs, datums, cosmetic faces, texture/finish intent, resin target (or environment/use case), expected prototype quantities, and what decisions the prototype must enable (fit sign-off, cosmetic sign-off, resin sign-off).

Question 2

When should I choose prototype molding vs. 3D printing?

Accepted Answer

Choose prototype molding when you need molding-real behavior: shrink directionality, warp drivers, weld lines, gate vestige, and cosmetic witness. 3D printing is great for early geometry checks, but it won’t replicate molding realities that affect fit and appearance.

Question 3

Can prototype molding help me finalize tolerances and datums?

Accepted Answer

Yes. Prototype molding is ideal for confirming datum strategy and which interfaces truly need tight control. We recommend tolerancing the features that drive assembly fit and function, then using prototype evidence to refine what’s realistic and necessary.

Question 4

How do you manage shrink and warp during prototype programs?

Accepted Answer

We start with DFM (consistent walls, ribs, datum strategy), then prototype tooling intent (gating/venting/ejection choices), and finally material discipline (drying/handling). The goal is to learn what moves and why, then converge quickly through iteration.

Question 5

Can you support inserts or overmolding during prototype stage?

Accepted Answer

Yes—when it is the right learning tool. Insert placement/retention and overmold interface intent can be validated in prototype programs, with clear expectations for what is being proven now vs. what is finalized at production tooling.

Question 6

What drives cost most in prototype molding?

Accepted Answer

Key cost drivers are iteration count, part complexity (undercuts/side actions), cosmetic requirements, resin choice and moisture discipline, quantity per revision, and how much evidence/documentation you need to support decisions.

PrototypeMolding

PrototypeMolding