Explore
A physical stand-in can reveal proportion, reach, and layout that a screen cannot.
Test an idea in the real world
Prototypes are questions you can hold.
A prototype is most useful when it answers a specific question. KPI LLC helps Connecticut and Massachusetts teams move from digital design to a physical check, then decide what evidence the next iteration needs.
Discuss a prototypeStart with the decision
What should this build teach you?
A prototype can test a shape, an assembly sequence, a hand position, a mounting idea, or a workflow. Before choosing print settings or a material, define the thing you want to learn and what would count as a useful observation.
- Identify the question: fit, layout, handling, assembly, or another observable concern.
- Separate features that need to be representative from those that can remain rough.
- Mark the dimensions and interfaces that matter for the review.
- Plan how feedback will change the CAD or digital experience.
- Confirm cost, schedule, file ownership, and follow-on scope before production.
A practical loop
- Frame the product question and use environment.
- Review current CAD, sketches, or workflow evidence.
- Confirm an initial scope and material to evaluate.
- Build only what is needed for the next useful check.
- Observe, record, revise, and decide what comes next.
This describes a possible project approach, not a guaranteed schedule or included engineering package. Scope is confirmed per inquiry.
Scale at the pace of proof
From first mock-up to a small run, one decision at a time.
Validate
Use a prototype to ask fit or assembly questions. Critical dimensions and expected variation must be agreed and checked.
Repeat
If a design is stable and the next quantity is known, discuss a repeat print run as a separately scoped request.
Material and process, chosen for the test.
KPI's verified FDM materials include PLA, PETG, and carbon-fiber-reinforced filament, with additional materials available upon request. Exact filament grade and comparative performance are not published here. A prototype result can only speak to the material, print setup, and geometry actually tested.
If you need a resin or powder-bed technology, note that in the request; KPI has not confirmed those processes as available services. We'll be candid about fit rather than suggest an unverified capability.
Confidentiality is a scope question.
Share only what is needed for initial discussion. If your work requires a nondisclosure agreement, ask KPI to review and agree to written terms before sending sensitive information. A website note does not itself create or promise an NDA.
Keep source CAD, version labels, and decision notes organized across rounds. For an inquiry, include the current revision and say which file represents the intended source of truth.
Straight answers
Questions worth asking
Do you guarantee prototype turnaround?
No general turnaround is published. Timing depends on the design, material, quantity, current workload, and agreed scope; KPI confirms feasibility directly.
Can I request multiple iterations?
You can describe an iteration plan in your inquiry. File revisions, review, costs, and schedule are scoped with KPI before work begins.
Can I share confidential design files?
Use the quote form to submit files for review. Any NDA or additional confidentiality terms should be discussed and agreed in writing before sharing sensitive information.
Request a conversation
What should the prototype help you decide?
Share the context you have. Exact materials, cost, fit, and timing are confirmed after review—nothing here assumes a specification you haven’t provided.
- Upload up to five common CAD files.
- Combined attachment limit: 100 MB per inquiry.
- We can discuss PLA, PETG, carbon-fiber-reinforced filament, and other materials on request.
A useful first step
Have an early sketch? Start there.
Start with a short note. The next step is a conversation about fit, material, scope, and what is known so far.