Atlas turns ideas, sketches, and broken parts into finished components — using
3D printing, CAD, CNC plasma cutting, and short-run manufacturing. Built right.
Built to use.
Atlas is built for customers who need more than just a rendering. The goal is to
produce parts that fit, function, and move the project forward.
01
3D Printing
Rapid prototypes, fit checks, housings, fixtures, jigs, functional parts, and short-run production components.
FDM
Functional
Fixtures
02
CAD + Design Support
Turn sketches, measurements, and rough ideas into buildable parts with fabrication-minded modeling and refinement.
STEP / STL
Reverse Eng.
DFM
03
CNC Plasma Cutting
Custom brackets, plates, gussets, tabs, templates, signage, and repeatable cut parts for fabrication projects.
Steel
Aluminum
Stainless
04
Fabrication Support
Custom assemblies, repair-oriented parts, welded components, and one-off solutions that need practical build thinking.
Welding
Assembly
Repair
05
Small-Batch Manufacturing
Low-volume production for repeatable parts without the overhead of a full-scale manufacturing commitment.
10–1000 units
Repeatable
QC checked
06
Not sure which process?
Send what you have — a sketch, a photo, a sample part, or just a description of the problem. Atlas will recommend the right path: print, cut, fabricate, or design first.
No bloated quoting cycles. No design-by-committee. Send what you have, and Atlas takes it from there.
01
Project Intake
Start with a sketch, sample part, dimensions, a CAD file, or a simple explanation of the problem you need solved.
02
Review + Direction
Atlas reviews the job, identifies the right path, and recommends printing, cutting, fabrication, design refinement, or a mix of processes.
03
Prototype + Build
Parts are modeled, prototyped, cut, printed, or fabricated based on what the project actually needs.
04
Refine + Deliver
Prototype work can be adjusted and improved before final production, repeat runs, or project handoff.
// 04 · ABOUT
A fabrication-minded shop focused on practical results.
Atlas Prototype Works was built to help customers move ideas into physical parts with a
practical, manufacturing-focused approach. Rather than separating design, prototyping, and
fabrication across multiple vendors, Atlas combines them into one streamlined workflow.
The goal is simple: create functional prototypes, custom parts, and short-run production
solutions that solve real problems and support actual use.
Practical approach
Function, fit, and manufacturability — not just appearance.
Flexible workflow
Start from a rough concept, broken part, photo, measurements, or a CAD file.
Prototype to production
One workflow for concepts, first articles, revisions, and low-volume runs.
Fabrication-minded
Bridges design and making so projects move faster and stay grounded.
// 05 · FEATURED WORK
Real problems. Usable results.
Featured projects and recent work from the Atlas shop floor. More projects added as the portfolio grows.
FEATURED PROJECT · IN PROGRESS
Atlas Pit Box
Custom aluminum race support vehicle. Designed end-to-end in-house — fabrication underway.
Frame
6061 aluminum, TIG welded
Brakes
Wilwood kart-class hydraulic
Designed in
Autodesk Fusion 360
Built for
1,000+ lb loaded weight
Full vehicle assembly modeled in Fusion 360 before fabrication.
// THE BRIEF
Race teams need a real mobile command center — not a wagon.
Off-the-shelf carts are either too small, too flimsy, or built around storage that
doesn't match how a race team actually works. Atlas Pit Box was designed for our team:
aluminum frame for low weight and zero corrosion, integrated tool storage, real brakes
and steering, and structural capacity to grow into a powered vehicle later.
// THE APPROACH
Designed end-to-end before any aluminum was cut.
The entire vehicle was modeled as a single assembly in Fusion 360 — frame, body panels,
suspension corners, brake system, steering linkage, and the integrated Snap-on toolbox.
Every component was virtually fit-checked against the others to verify clearances,
load paths, and serviceability. Each suspension corner was engineered as a system,
with frame gusseting placed exactly where load transfers into the chassis.
Front suspension corner — designed as one integrated subassembly.
// THE BRAKE SYSTEM
Wilwood kart and motorcycle hardware, sized to work as a complete circuit.
Front brakes use the Wilwood 120-5498 Billet Go-Kart caliper — a 2-piston billet aluminum
unit with 1.57 in² of clamping area, weighing just 1.5 lb. Hydraulic actuation comes from
a Wilwood 260-4202 motorcycle handlebar master cylinder with a 5/8" bore and integral
three-position parking brake lock.
The 5.1:1 hydraulic ratio between caliper and master cylinder falls inside Wilwood's own
factory pairing for kart-class brake circuits — proven feel and adequate clamping force
for the cart's loaded weight without resorting to a custom one-off pedal box.
Custom-machined spindle and hub assembly, turned in-house from 6061 bar stock.
// CUSTOM-MACHINED COMPONENTS
Hubs, spindles, and rotors turned and milled in-house.
The hub adapter, spindles, and steering knuckles were all machined in-house from
6061 aluminum bar stock. Each part was modeled in Fusion 360, exported to manual
lathe and mill operations, and finished to drawing.
The two-piece rotor design separates the swept braking surface from the wheel-mount
interface — a drilled 8.75" outer ring sized to caliper spec, mated to a billet hub
adapter that handles the wheel stud pattern, bearing seat, and spindle interface.
The result is a lighter, more serviceable assembly than a single integrated rotor.
TIG-welded 6061 aluminum frame — jigged, tacked, and gusseted at every load-bearing junction.
// FABRICATION
6061 aluminum frame, TIG welded throughout.
Joints are jigged and tacked before final welds to maintain frame square within tolerance,
then reinforced with gussets at every load-bearing intersection — suspension mounts,
axle pickups, and the toolbox mounting platform.
// RAPID PROTOTYPING
Form-fit verified in plastic before metal is committed.
Caliper brackets, hub clearances, and assembly fitment are verified on a Bambu Lab H2D
dual-toolhead 3D printer with engineering-grade filaments — carbon-fiber-reinforced nylon
and high-temperature thermoplastics. This catches interference issues at $5 of filament
rather than $100 of billet stock and an afternoon of machine time.
// BUILD PROGRESSION
Concept to rolling chassis.
// SPECIFICATIONS
By the numbers.
Frame
6061 aluminum square tube, TIG welded
Frame weight
~320 lb
Loaded weight
~770 lb base; built to carry 1,000+ lb fully equipped
Wheels
12" golf cart, 215/35-12 low-profile tires
Caliper
Wilwood 120-5498 Billet Go-Kart, 2-piston, 1.5 lb
Master cylinder
Wilwood 260-4202 Handlebar, 5/8" bore, integral parking lock
Wilwood brake hardware, McMaster-Carr fasteners and rod ends, Snap-on toolbox, golf cart wheels and tires
End-to-end product development under one roof.
There's an old fabrication triangle: cheap, fast, well-built — pick two. Atlas picks
well-built first, then works to be fast. Accuracy beats speed when those two are in
conflict — but communication, honest scoping, and quick turnaround keep customer
downtime to a minimum. If you need a part designed, prototyped, and built right, the
workflow you see in this project is the same one we'll use on yours.
Protective gauge guards for Smith Series 30 oxygen & acetylene regulators.
Model
SM30
Fits
Smith Series 30 regulators
Sold as
Matched pair (oxy + acetylene)
Process
CAD designed · 3D printed in-house
RegShield SM30 — acetylene side, installed.
// THE PROBLEM
Regulator gauges are precision instruments. They take a beating.
Oxygen and acetylene regulator gauges sit exposed at the top of every torch cart, taking
impacts from torch handles, falling hoses, dropped cylinders, and the everyday bumps
of moving a cart around a working shop. Replacing damaged gauges is expensive and
pulls equipment out of service.
// THE SOLUTION
A protective shield engineered around the regulator body.
RegShield SM30 wraps around Smith Series 30 regulators with cutouts for both gauge
faces, the regulator T-handle, and the cylinder connection. The protective profile
takes impacts on the shield body — not the gauges. Color-coded in green for oxygen
and red for acetylene, matching standard welding equipment color codes.
RegShield SM30 — oxygen side, mounted on the cylinder.
// THE ENGINEERING
Designed in CAD. Iterated in print. Built to fit.
RegShield started as a CAD model, went through multiple printed prototypes for fit
refinement on real Smith Series 30 hardware, and became a repeatable short-run
production part. The drawing below is from the production design — dimensions
redacted, but the engineering discipline behind every Atlas product is visible in
the views and structure.
SM30 · DWG REDACTED
// PRODUCT GALLERY
RegShield SM30 — bench shots.
Available now for Smith Series 30 regulators.
Additional regulator models in development. Reach out for pricing, lead time, or to request a fit for another regulator brand.
More project case studies coming as the portfolio expands. Follow @atlas_prototype_works on Instagram for in-progress shots from the shop.
// 06 · COMMON QUESTIONS
Answers before you ask.
What do you need from me to get a quote?+
Whatever you have. A sketch on a napkin, a phone photo of a broken part, a few key dimensions, or a finished CAD file — all are workable starting points. The clearer the input, the faster the quote.
What file formats do you accept?+
STEP, STL, IGES, DXF, DWG, SLDPRT, F3D, and most common CAD exchange formats. PDFs and JPEGs work too if a CAD file isn't available — Atlas can model from drawings or photos.
How fast is turnaround?+
Quote response within 24 hours. Most small jobs ship in 5–10 business days from approval. Rush work is available when the schedule allows — flag urgency in your request and Atlas will let you know what's possible.
Do you ship nationwide?+
Yes. Local pickup is available in the Riverside, CT area. For everyone else, parts ship USPS, UPS, or FedEx — actual shipping cost is added to the quote.
Is there a minimum order?+
No minimum. Single-piece prototypes, one-off replacement parts, and small batches are exactly the kind of work Atlas was built for.
What materials are available?+
For 3D printing: PLA, PETG, ABS, ASA, TPU, and engineering filaments including carbon-fiber-reinforced nylon and high-temp thermoplastics. For CNC plasma: mild steel, aluminum, and stainless in common sheet thicknesses. For machining and welding: 6061 aluminum, mild and stainless steel. Other materials available on request.
How does payment work?+
For most small jobs, payment is due on completion before shipment. For larger runs or design-heavy projects, a 50% deposit is collected up front with the balance due at delivery. Invoices accept card, ACH, and standard digital payment methods.
Do you sign NDAs?+
Yes. NDAs are welcome for proprietary product work. Send your standard agreement with your project request, or ask and Atlas will provide one.
// 07 · REQUEST A QUOTE
Start your project.
Whether it's a one-off part, a prototype, a bracket, a replacement component, or a short
production run — Atlas can help identify the right path forward.
Helpful to include:
What the part needs to do
Approximate dimensions or size
Quantity needed
Material preference (if known)
Photos, sketches, or CAD files
Timeline or target deadline
24HR
Quote response promise. Atlas replies to every project inquiry within one business day.
SM30 · DWG REDACTED
