Frequently asked questions.

What kind of work does Payson Labs take on?

Mechanical and mechatronic engineering for physical products: housings, mechanisms, and motion systems, from early concept through CAD, drawings, prototype sourcing, assembly, and documented testing. Work involving motors, servo control, sensors, and robotics is a particular focus.

What do I need to have ready before starting?

A clear problem is enough. Existing CAD, drawings, samples, or test data all help and will shorten the early work, but none are required. A first conversation usually covers what the part or machine has to do, what constraints are already fixed, and what evidence would count as proof it works.

How is confidentiality handled?

Payson Labs works under client confidentiality agreements as a matter of course, and will sign yours before any technical detail is shared. Client-identifying information is kept out of public material entirely: nothing shown on this site names a client, and published photographs are stripped of metadata and described in generic terms.

Who owns the design work?

Ownership of models, drawings, reports, and other deliverables is set out in writing in the project agreement, and is settled before work begins rather than left to be argued about later. Payson Labs does not take equity in client products or companies.

Does Payson Labs manufacture parts?

In part. There is in-house 3D printing, limited bench rework such as drilling and tapping, and final prototype assembly. Machined, molded, and otherwise fabricated parts are made by independent contract manufacturers that Payson Labs specifies, sources, and manages on the client's behalf.

Payson Labs does not operate a production machine shop and does not sell its own product line.

Does Payson Labs provide stamped or sealed engineering drawings?

No. Walter Coe is a California Registered Professional Engineer (License No. M 41107), and that licensure informs the technical judgment brought to every project — but signed or sealed drawings are not part of the service offering. Testing likewise does not include independent product certification or regulatory approval.

How are projects priced?

Each project is quoted after a short scoping conversation, because the cost of a design review and the cost of a full prototype program are not comparable. Scope, deliverables, and price are agreed in writing before work starts, and any outside fabrication is quoted separately so you can see what is engineering time and what is parts.

Do you work remotely or on-site?

Both. Payson Labs is based in Murrieta, California, and much of the design, review, and coordination work happens remotely for clients anywhere. Hands-on work — prototype assembly, bench rework, and testing — happens in the lab, and on-site visits can be arranged where a program needs them.