Additive Manufacturing · San Jose, California

Functional FDM prototypes and production runs

Parts you can fit, load and ship, manufactured in house and reviewed by an engineer before anything is printed. Upload a STEP, STL, OBJ or 3MF file and see a price in seconds.

350 × 320 × 320
mm build envelope, single piece
From 2 weeks
Lead time, priced from your geometry
Backed by engineering
On every prototype and production run

A part larger than the envelope is divided along a joint line, printed as sections and bonded into one piece; the estimator tells you when that applies and the joint line is confirmed during review. Printed, finished and shipped from San Jose, California. We ship within the United States only.

On small, well supported features our parts typically hold about ±0.1 mm. That figure does not scale up with the part: accuracy moves with size, geometry, material and finishing, and a large part or a filled nylon will not hold it. Tell us which dimensions are critical and we will tell you what we can hold on yours. More on tolerances and fit.

What We Do

Backed by engineering, not a print farm.

Seabright Mechanical manufactures functional FDM components for engineers: prototypes that get loaded and tested, and production parts that ship inside real products. Quantities run from a single part to hundreds, with no tooling to pay for and no minimum run. Engineering reviews the model before the job reaches the machine and stays with it through orientation, printing, finishing and packing.

Your CAD goes straight to engineering.

No sales desk in between. Send the model and the answers come back from engineering: tolerances and fits, materials, print orientation and manufacturability.

Every estimate is reviewed by an engineer before production
Design-for-manufacturing feedback on geometry that will fight the process
Straight answers on what FDM will and will not hold
Orientation, wall and infill decisions made for the load case
Material recommendations based on what the part has to survive
One point of contact from quote to shipment
How Quoting Works

An instant number, then a real engineer.

You get pricing immediately so you can plan, and a human check before anything is committed to the machine.

1

Upload your CAD

Drop in a STEP, STL, OBJ or 3MF file and choose material, quantity and how fast you need it. Your files are read in your browser. The geometry never leaves your machine to produce the estimate.

2

Get an instant estimate

The estimator prices the part from its actual geometry and your selected options, itemizes every line, and builds a PDF you can put in front of purchasing the same afternoon.

3

Engineering review

Every submitted estimate is reviewed by an engineer before production. We may adjust price, material or lead time, or suggest a design change, based on geometry, manufacturability and tolerances. You get the final quote before anything is built.

Instant estimate. Final pricing and manufacturability are confirmed by an engineer before production. That review is the point. It is what keeps a part that looks printable from becoming a part that fails on the bench.

And if we get it wrong: If a part does not match the approved geometry and the stated tolerance, we remake it at our cost.
Capabilities

What we build, and what to expect from it.

Have a spec sheet, a tricky tolerance or a part that keeps failing in service? Send it over and we will tell you honestly whether FDM is the right answer.

FDM 3D Printing

Fused deposition modeling run and finished in house, with orientation, walls and material set by engineering for your load case.

Learn more →

Engineering Prototypes

Functional prototypes you can fit, load and test, not display models. Iterate a revision at a time.

Learn more →

Low-Volume Production

Repeatable batches from a handful of parts to hundreds, without tooling cost or minimum-run commitments.

Learn more →

Materials

PLA, PETG, PETG ESD, Nylon (PA) and carbon-fiber nylon (PA-CF). Tell us what the part has to survive.

Learn more →

Free 3D part viewer

Open a STL, STEP or 3MF file in your browser and cut a section through it to check wall thickness and internal features. No account, no upload.

Open the viewer →

PETGPETG ESDPLANylon (PA)Nylon CF (PA-CF)PPA-CFPPS-CF
Low-Volume Friendly

From one prototype to production runs of hundreds.

Small quantities are not an exception here. They are the normal case. There is no tooling to amortize, so a run of three costs what a run of three should cost, and a revision two weeks later does not restart a tooling bill.

Quantity pricing kicks in automatically as the run grows, and the estimator shows you the break points as you change quantity, so you can see for yourself whether it is worth building ten instead of five.

Orders start at a $30 minimum, and a single part prices no lower than $5.

Not sure it is a fit?

Send the model. If FDM is the wrong process for your part, we will say so. An unhappy part helps nobody.

Get an Instant Estimate

Or email 3dp@seabrightmechanical.com

Seabright Mechanical

Talk to an engineer about your project

Have a CAD file ready? The instant estimate tool prices it in seconds. Otherwise describe the part below (key dimensions, tolerances, quantity and what it has to do) and we will come back to you.

  • Functional prototypes & iteration
  • Low-volume production parts
  • Engineering review on every job

We are glad to work under an NDA. If you need one signed before you send geometry, just ask.

Prefer email? Reach us anytime at 3dp@seabrightmechanical.com. Every message is read by engineering before it is answered.

Have a CAD file? Email your STEP, STL, OBJ or 3MF to 3dp@seabrightmechanical.com and we will match it to your request.

We ship within the United States only. No international shipping at this time.

We reply from the shop, usually within one business day.

Have the CAD already?

Upload it and see pricing in seconds. An engineer reviews every submitted estimate before anything is built.

This site sets no cookies. No tracking, no analytics, no advertising pixels. What this browser keeps for you, all of it on your own device: that you closed this notice, the parts and settings in an estimate you have started (twelve hours), and a file handed from the 3D viewer to the estimator (ten minutes). What is stored, and why