Jlccnc

JLCCNC delivers CNC machining & sheet metal fabrication for engineers, makers, and hardware teams. Follow us for manufacturing insights and exclusive offers.

From rapid prototyping to full production, we bring your ideas to life. JLCCNC Intelligent Manufacturing Division Created in December 2021, it is the CNC, sheet metal processing, hand plate re-molding processing brand under JLCPCB registration. As one of the important business of JLCPCB's machinery industry chain, it provides cost-effective and fast prototype manufacturing services with the busine

ss model of digital manufacturing and online full-process operation, and the materials that can be processed include aluminum alloys, plastics, copper alloys, etc.; and the main service industries are industrial design, medical, electronics, automotive, handicrafts, and hardware fittings. Nowadays, JLCCNC Smart Manufacturing Division has more than 100 sets of equipments, dozens of engineers and 9000 square meters of production and processing center. It is backed up by an online ERP ordering system used by millions of users. JLCCNC has always been focusing on providing customers with a variety of humane services and support, focusing on talent training, advocating the concept of “self-management”, the company has been recognized and praised by many customers!

06/09/2026

Does a Tighter Tolerance Always Mean a Better Part? Not Quite. 🎯
Tighter tolerances sound better—but does the part actually need them?
When a dimension doesn’t affect fit, function, or performance, an unnecessarily tight tolerance can mean:
⏱️ More machining time
🔍 More inspection
💰 Higher manufacturing costs
The goal isn’t to make every dimension ultra-precise.
It’s to apply precision where it matters most.
Good engineering isn’t about maximum precision.
It’s about the right precision.

05/09/2026

Spot the Problem 🔍

One design choice can make CNC machining much harder.
Can you spot it?
👀 Look at the part.
Comment your guess below.

03/09/2026

✨ Why Choose PMMA for CNC Machining?

Need a material that’s clear, lightweight, easy to machine, and weather-resistant? PMMA (Acrylic) is a great choice.

🔍 Key benefits:
• Excellent transparency & optical clarity
• Easy to CNC machine
• Good weather & chemical resistance
• Smooth, attractive appearance

Ideal for optical parts, transparent covers, displays, prototypes, and custom enclosures.

👉 Want to learn more about PMMA properties and CNC machining? Check out our full guide!

https://jlccnc.com/help/article/pmma-acrylic-cnc-machining

02/09/2026

Why are CNC inside corners never 100% sharp? 🤔

It’s not a defect—it’s the tool geometry.

CNC end mills are round, so they naturally leave an internal radius (R) in inside corners.

Want sharper corners? Smaller tools mean lower cutting parameters, longer machining time, and higher costs. 💸

💡 DFM Tips:
• Use a corner radius slightly larger than the tool radius.
• Need a square fit? Consider a dog-bone or T-bone relief.

Design for the tool, and you’ll save both time and cost.

What corner radius do you usually use?

01/09/2026

Engineers don’t just build things.
They solve problems. 🛠️
Intricate threads?
Tight concentricity?
Demanding surface finishes?
Bring it on.
The best manufacturing solutions start with one question:
“Let’s see how precise we can make it.”
Got a challenging design? Turn your CAD into precision parts with JLCCNC. ⚙️

31/08/2026

Summer break project update 🤖

is building a robot with sheet metal parts from JLCCNC.

A small design mistake? Happens to the best of us. 😅

Luckily, this one was fixable—and the build is moving forward!

$120 for the sheet metal parts. Not a bad start for a robot.

Can’t wait to see where this build goes next. 🦾

Explore sheet metal manufacturing with JLCCNC: https://jlccnc.com/sheet-metal-fabrication

31/08/2026

Not sure which material to choose for your CNC part?
Aluminum, steel, stainless steel, and engineering plastics all offer different advantages.
The right material depends on your part’s strength, weight, corrosion resistance, cost, and application requirements.
Don’t just choose the material you’re most familiar with. Choose based on what the part actually needs.

31/08/2026

Same CNC part. Different finish. Completely different result. 👀
Surface finishing isn't just about appearance.
It can affect texture, corrosion resistance, wear resistance, and the overall feel of the finished part.
The right finish can make a big difference.

30/08/2026

Your CNC tool has a secret teammate. 🫱🏻‍🫲🏼

Cutting fluid may not get much attention, but it plays a big role in cooling, lubrication, chip removal, and tool life.

So which type should you use for different machining jobs?

We break down the types, functions, applications, and selection tips here ↓
CNC Cutting Fluid: Types, Functions, Applications, and Selection Guide

29/08/2026

No room for a fl**ge? No problem. 🫡

built this 0.10" 5052 aluminum part with captive locknuts and dog-bone reliefs—a clever alternative when there isn’t enough room for a fold.

Anodized finish, clean tolerances, and solid M3 screw grip. ⚙️

Love seeing smart geometry solve real manufacturing challenges.

Explore sheet metal manufacturing with JLCCNC: https://jlccnc.com/sheet-metal-fabrication

Adresse

BischofStr. 101, 47809 Krefeld, Germany
Krefeld
47798

Webseite

https://jlccnc.com/?from=cncfb

Benachrichtigungen

Lassen Sie sich von uns eine E-Mail senden und seien Sie der erste der Neuigkeiten und Aktionen von Jlccnc erfährt. Ihre E-Mail-Adresse wird nicht für andere Zwecke verwendet und Sie können sich jederzeit abmelden.