CNC Machine Shop — Austin, TX

Precision Parts.
Direct From
The Machinist.

CNC milling, 3D printing & rapid prototyping. No sales reps, no runaround — you talk directly to the person making your parts.

Get A Free Quote Our Services
3-Axis CNC Milling
Multi-Material 3D Printing
Fast Turnaround
Sentinel Machining shop
About Us

A Machine Shop That
Actually Talks to You

Sentinel Machining is a precision CNC machine shop in Austin, Texas. We specialize in custom aluminum and steel parts — from one-off prototypes to short production runs.

What makes us different: you talk directly to the machinist. No sales reps, no account managers, no game of telephone. Send a drawing, get a quote, ask a question — you'll hear back from the person actually making your parts.

We work with you from concept to finished part. Need to validate a design before committing to metal? We'll 3D print it first, iterate until it's right, then machine the final version.

24hr
Typical quote turnaround
1
Point of contact — always
What We Do

Our Services

From napkin sketch to finished part — one shop, one point of contact.

CNC Milling

Precision 3-axis CNC machining — from simple brackets to complex multi-setup parts. Tight tolerances, clean finishes, fast turnaround.

Materials

6061 Aluminum 7075 Aluminum Mild Steel Tool Steel

3D Printing & Prototyping

Rapid prototyping with multi-material 3D printing. Get a functional prototype in days, not weeks. Test fit, form, and function before committing to metal.

Materials

PLA PETG ABS TPU Multi-Color

Design & Engineering

Got a napkin sketch? A rough idea? We'll work with you to turn it into a manufacturable part. CAD design, toolpath planning, fixturing — we handle it all.

Includes

CAD Design DFM Review Toolpath Planning Fixturing
Our Work

Recent Projects

A selection of parts we've machined and prototyped for our clients.

Custom Harley-Davidson foot peg — CNC machined from billet aluminum
CNC Mill Featured

Custom Harley Foot Pegs

Designed and manufactured custom aftermarket foot pegs for Harley-Davidson motorcycles.

CNC milled aluminum part
CNC Mill

Steel Stubshaft

Custom stubshaft for a racing vehicle, made out of 4140 PH Steel and then heat treated to 45HRC.

3D Printed prototype part
3D Print

3D Printed Prototype

Functional prototype for fit and form validation before machining the final version in aluminum.

CNC machined prototype
CNC Mill

Custom Build Platform

Functional prototype for DLP Resin Printer that a client used to help with their research application.

Custom aluminum bracket
CNC Mill

Bellcrank

Custom bellcrank for a racing vehicle, made out of 7075 aluminum.

Precision aluminum machining
CNC Mill

Econdoer Head Mount

High-precision aluminum component with tight tolerance to mount an encoder head for a roll-to-roll manufacturing system

The Difference

Why Sentinel?

01

Direct Communication

You talk to the person making your parts. No sales department, no account managers, no game of telephone. Send a drawing, get a quote, ask a question — you'll hear back from the machinist directly.

02

Prototype First, Then Produce

Why gamble on an expensive machined part when you can validate the design with a quick 3D print? We prototype in plastic, iterate until it's right, then machine in metal. Saves you time and money.

03

Fast Turnaround

Small shop, no backlog bureaucracy. We quote fast, start fast, and deliver fast. Prototypes in days, not weeks. Production runs on a timeline that works for you. We give an honest delivery date and hit it.

Worked with Peter from initial concept through production on our custom Harley foot pegs. Direct communication made the whole process smooth — no middlemen, no delays.

Lee Woffenden
Xlerated Customs
Get Started

Ready to Make
Your Part?

Send us your drawings, sketches, or just describe what you need. We'll get back to you with a quote — usually within 24 hours.

Have CAD files? Email them directly — we accept STEP, IGES, DXF, and most common formats.

Phone
(737) 377-5314
Email
contact@sentinelmachining.com
Location
Austin, TX

Request a Quote

Fill out the form below and we'll get back to you within 24 hours.

Have CAD files? Email them to contact@sentinelmachining.com — we accept STEP, IGES, DXF, and more.