Approved Machining

06/04/2026

Some parts are functional.

Some parts are beautiful.

This one had the audacity to be both.

Machined from copper with tight features, clean pockets, and every dimension exactly where it should be.

Request a quote: https://www.approvedmachining.com/request-for-quote

06/03/2026

Some machine shops make the same bracket 10,000 times. We machine parts for industries where the parts are complex, the tolerances are tight, and nobody's ordering 50,000 of the same thing.

Prototypes and low-volume production are our bread and butter, which means no two weeks look the same around here. Here’s where we spend much of our time:

➡️ Robotics: a robot arm that's off by a few thousandths doesn't pick up the part. It picks up the table.
➡️ Medical: "close enough" is not a phrase anyone wants to hear in an operating room
➡️ Instrumentation: the tool that measures everything else doesn't get to be the one that's wrong

We’ll let you decide if our job is cooler (It is.).

Learn more about the industries we serve: https://www.approvedmachining.com/industries-we-serve



Related: Association for Advancing Automation

06/02/2026

We get it…shiny is satisfying. So is bubble wrap and those videos of people pressure washing driveways. But that doesn't mean your non-functional internal pocket needs a mirror finish.

A smoother surface finish doesn't always mean a better part, but it almost always means a more expensive one. A single Ra callout can add tool passes, slow feed rates, and trigger secondary operations that do nothing for how the part actually performs. And we see it all the time on surfaces that'll never be seen, touched, or mated to anything.

Before you submit that next drawing, it's worth asking what each surface actually needs to do. The answer might save you more than you'd expect.

We break down when surface finish actually matters (and when it doesn’t): ​​https://www.approvedmachining.com/blog/how-to-choose-the-right-surface-finish-for-cnc-machined-parts



Related: ASME (American Society of Mechanical Engineers)

05/28/2026

Your part doesn’t need to be on a submarine to qualify for harsh environment design.

🌦️ A rooftop unit baking in the summer and freezing in the winter? Harsh.
🔧 A factory floor with constant vibration and chemical exposure? Harsh.
🌊 Anything within smelling distance of saltwater? Also harsh.

Most premature part failures trace back to one thing: the environment wasn’t part of the design conversation.

Here’s how to design parts that actually hold up in the real world: https://www.approvedmachining.com/blog/designing-cnc-parts-for-harsh-environments

05/27/2026

Most materials come off the machine looking like they need a shower. Brass comes off looking like it just got back from one.

It machines clean and somehow makes even simple geometry look more expensive than it is.

We don’t get to work with it every day, but it’s always a good day when we do.

Got a project? Let’s talk: https://www.approvedmachining.com/request-for-quote

05/26/2026

CAD is the friend who says "yeah, that looks great" when you're halfway out the door wearing something you're going to regret in about 12 minutes.

Your machinist is the friend who stops you and says, "You sure about that?"

CAD will let you put square corners in pockets, make walls thinner than a playing card, and stack features in places no tool can physically reach. And it will render all of it like nothing could possibly go wrong.

Here's what the shop floor catches that CAD won't:

⛔ Square internal corners
⛔ Walls under 1/8"
⛔ Raised text in small sizes
⛔ Tapped holes with no extra drill depth

Before your next design leaves CAD, give it one more look. Here are the eight things we catch most often: https://www.approvedmachining.com/blog/8-design-mistakes-to-avoid-for-precision-machining



Related: SOLIDWORKS

05/21/2026

"Just to be safe" is solid advice for sunscreen, seatbelts, and checking if the stove is off before leaving the house.

In CNC machining, it can quietly drive up cost and lead time without changing how the part actually performs.

Tight surface finish callouts add tool passes, slow feed rates, and can trigger secondary operations. On sealing surfaces, bearing interfaces, and sliding components, that’s often exactly what you want. On features that don’t interact with anything? It’s worth taking a second look.

Not every surface needs the same level of attention. Here’s how to choose the right one for your part: https://www.approvedmachining.com/blog/how-to-choose-the-right-surface-finish-for-cnc-machined-parts

05/20/2026

Remember when pizza chains promised 30 minutes or less? They hit the deadline almost every time. They also sent you mushrooms instead of pepperoni and a crust that was basically warm dough. But hey, it was fast.

Fast is easy. Fast and right is harder.

Most shops will make you choose between speed and quality. At Approved Machining, we’ve built our process so you don’t have to.

Fast turnarounds come from preparation, not shortcuts:

→ Complete files and clear specs from the start
→ First-piece inspections at every operation
→ 100% inspection before anything ships

Need parts on a tight timeline? Let’s get started: https://www.approvedmachining.com/contact-us

05/19/2026

Raised text seems like a simple design choice. Kind of like asking for a name piped onto a cake.

That is, until the cursive gets wobbly, the letters start blending together, and "Happy Anniversary Steve and Laura" looks a lot like "Happy Anniversary Stan and Laura."

Steve's had better anniversaries.

Raised lettering runs into the same problem. Tool limitations affect how clean those features can be, especially with smaller text. What looks simple on a drawing takes more time to machine and doesn't always come out the way you pictured.

Engraved text is faster, more durable, and usually easier to read.

One small design choice. Real impact on cost and lead time.

This is just one design mistake we see at Approved Machining. Here are 7 more: https://www.approvedmachining.com/blog/8-design-mistakes-to-avoid-for-precision-machining



Related: Fabricators & Manufacturers Association

Here we will highlight the eight most common design issues we encounter and offer practical strategies to avoid them and reduce your costs

05/14/2026

If you have a teenager, you've watched them walk out the door in January wearing shorts and a t-shirt and had to make peace with the fact that you can't help someone who won't help themselves.

Unlike your teenager, your machined parts can't tough it out. A harsh environment will find every shortcut in your material selection, surface finishing, or assembly design. By the time you notice, the damage is already done and the fix is expensive.

Designing for temperature swings, vibration, corrosion, and chemical exposure needs to happen early, long before the first part hits the machine.

Here's how to design for it from the start: https://www.approvedmachining.com/blog/designing-cnc-parts-for-harsh-environments



Related: ASTM International

Designing CNC parts for harsh environments requires the right materials, finishes, and tolerances. Learn how to improve durability and prevent early failure.