#pcbdesign — ELECROW - FORUM

🎉 Elecrow’s 2nd Electronics Design Contest is on Going – Over $6,000 in prizes! 🔧🚀

Erin — Mon, 21 Apr 2025 07:37:54 +0000

Hey maker friends and partner sellers! Got a brilliant electronics project? Want to show it to the world and win cash? This is your chance!

💡 Elecrow is calling all makers, engineers, students, and hobbyists to join the 2nd Electronics Design Contest. If your idea is smart, useful, or just plain awesome — we want to see it!

🏆Prize Pool:
🥇 Gold: $3000 + Maker tool bundle
🥈 Silver: $1200
🥉 Bronze: $600

🎖️ Special Awards: Best Creativity / Best Tutorial / Social Contribution – $100 each

📅 Submission Deadline: July 20, 2025
🌐 Submit here: Join Now

🔍 Judging Criteria:
* 60% Public Popularity (likes, views, comments, shares, “add to cart” clicks)
* 40% Elecrow Engineer Evaluation (creativity, usefulness, design, social impact)

✨ Tips to Win:
* Share a full tutorial, schematics, BOM, and design files
* Use eye-catching cover images
* Promote your project on social media early and often
* The earlier you submit, the more visibility you get!

📬 Questions? Contact: doreen@elecrow.com

Radius of outline inner corner

YAMANEKO — Thu, 18 Jul 2024 10:29:55 +0000

I am having trouble with a USB connector like this one.

According to the specs of your regular PCB, the minimum diameter of the outline router cut is 2mm, but the parts circled in red requires more small radius.
How should I draw such a part?
Right now, I am thinking of placing an elliptical NPTHs at the corner to ensure the corners, as in the second image. Is this okay?

Some common circuit symbols you should know 🧐 for electrical engineer 👋

Tammy_Elecrow — Fri, 10 Mar 2023 03:00:35 +0000

📒 As an electrical engineer, circuit symbols are essential to understanding and drawing electrical schematics.🧐

📜 Here are some common circuit symbols 🛠🔩🗜

📌 Any project requires a high-quality PCB, kindly check #ElecrowPCB 👋

Gather here 👏🏻#Elecrow Guys Chat Freely Time ☕

Tammy_Elecrow — Mon, 27 Feb 2023 08:41:06 +0000

Avoiding common #PCBdesign mistakes requires careful attention to the smallest details. Let's discuss the common mistakes and how to avoid them. 👋👋

1️⃣ Inadequate Trace Width: 😉

Different types of traces require different widths. Don't use the same width for power-carrying, high-impedance, and RF signal traces.

2️⃣ Via Sizing:🤓

Determine the right drill diameter and annular ring to avoid manufacturing issues. A standard via size is 0.7mm diameter with a 0.3mm drill

3️⃣ Trace Spacing: 🧐

Don't just follow the minimum clearance allowed by the manufacturer, aim for a minimum of 3x the spacing between the signal layer and adjacent reference layer.

4️⃣ Decoupling: 😊

Proper decoupling is critical for a well-behaved system. Use decoupling capacitors, short and wide traces, and power vias to ensure proper power delivery.

5️⃣ Reference Planes: 😃

Use solid reference planes in designs, especially for AC signals. Avoid creating voids or splits in the reference plane and crossing them with a trace on the signal layer to prevent EMI problems.

...... and so on 👀👀