3D CAD

[AI×CAD] Part 2: Still Counting Holes for Every Quote? Picking Up Holes, Counterbores and Countersinks Automatically from STEP B-Rep

In STEP exported with analytic surfaces, hole, counterbore, countersink and fillet dimensions are recorded as numbers. We show how feature recognition in CADAS, our free 3D CAD viewer and AI analysis tool, turns 12 holes into a 5-row table with the exact STEP-recorded dimensions.

[AI×CAD] Part 1: Nobody Outside the Design Department Can See Your 3D Data — Solve It Free, in a Browser

We released CADAS, a free 3D viewer that opens STEP files in your browser. No install or sign-up. Viewing, measuring and sectioning are processed in-browser and files are never transmitted. Here is how to share 3D data with departments that have no CAD license, with real screens and measurements.

AI Mathematics

Why Zero False Positives Still Wasn’t Enough: Lessons from 100+ NER Experiments

What 100+ NER experiments taught us about eliminating false positives on a fixed GitHub technical-term evaluation set without regressing existing performance: hard negatives, focused loss, distillation, residual repair, and class-specific logit adjustment.

GPU

TensorRT 10 × Blackwell Migration Guide (Part 3): Passing 5D grid_sample Through a Custom Plugin

Hello! "TensorRT 10 × Blackwell Migration Guide" series has reached its final installment.Part 1 covered the basics of converting to TensorRT and the wall where a 5D (volumetric) grid_sample is rejected at build time, and Part 2 walked through the many forms of silent degradation where "

WireCanal

Using a Luckfox Pico M from Anywhere: Putting a Public URL on a $25, 64 MB Linux Board with WireCanal

How we made a ¥3,750 (~$25) Linux board — the Luckfox Pico M (RV1103, 64 MB, USB-C only) — reachable from the internet without adding an inbound port for web publishing: SD imaging, RNDIS networking, WireCanal's free plan, a browser-controlled LED, and 33-second reboot recovery, all measured.

WireCanal

Publishing a Raspberry Pi 5 Web Server to the Internet: No Open Ports, Just a WireCanal Tunnel

We publish a Raspberry Pi 5 web server to the internet with its inbound ports kept closed: install the WireCanal Agent with a one-liner, create a canal, and run it as a systemd service. No port forwarding or router settings, about 5 minutes of work, verified through automatic recovery after reboot.

Hardening a Raspberry Pi 5: SSH keys, UFW, fail2ban — and the trap where IPv6 comes back after a reboot

A freshly set up Raspberry Pi 5 is wide open: password auth enabled, no firewall, 172 pending updates. We harden it with SSH key-only auth, UFW, fail2ban, and automatic updates, disable IPv6, and verify it all with real reboots — including the trap where IPv6 comes back after a reboot.

Setting Up a Raspberry Pi 5 Without a Monitor: From OS Imaging to SSH Using Only a Windows PC

Set up a Raspberry Pi 5 with no monitor or micro HDMI cable, using only a Windows PC. We use the Raspberry Pi Imager CLI and firstrun.sh to preconfigure Wi-Fi and SSH, with the full procedure and measured timings — about 3 minutes from SD card insertion to an SSH connection.

Developing a LINE Bot Locally: Solving the Ever-Changing Webhook URL Problem with a Fixed URL

Hello! The first wall you hit when building a LINE Bot is not the code — it is the webhook. LINE's Messaging API delivers messages that users send to your bot as HTTPS POST requests from LINE's servers to your server. For this receiving endpoint (the Webhook

Use a Local LLM on Your Home PC from Your Phone While Out: Ollama + Open WebUI + WireCanal

Add a chat interface to the local LLM on your home PC (Ollama + gemma4) with Open WebUI, expose it safely through a tunnel, and use it from your phone while out — a fully measured, step-by-step guide. No Docker, no WSL, and no port forwarding required.

How to Build an MCP Server — Using Your Own MCP Server from Web-Based ChatGPT and Claude (Part 2)

A step-by-step guide, with real connection screenshots, to making your own MCP server usable from web-based ChatGPT and Claude. We give a localhost server a public URL and OAuth authentication, letting browser AI query a sales database in Japanese without changing a single line of code.

What Sets ngrok and WireCanal Apart? The Developers Compare Pricing, Operations, and MCP Design

An honest comparison from the developers of WireCanal, a Japan-based service built on the same reverse tunnel approach as ngrok. The differences come down to three: pricing philosophy, where operations run, and where permissions live when connecting to AI.