A spinning laser rangefinder salvaged out of a robot vacuum: 360 readings a revolution over a plain serial port. Here is how I wired one up, the one-character bug in the code almost everybody copies, and a browser tool that reads the sensor over Web Serial so you can check yours in a minute.
Nine years of a house that writes everything down. A KNX bus with no memory, a database that remembers every telegram, and the twenty-nine processes, four screens and one robot that read it. Including the week the model decided sunlight does not exist.
Eleven years after putting eibd on a Raspberry Pi, I replaced it. It took one apt install, no code changed, and no commit records it. Here is the working config, what each flag is for, and why a compatible protocol is both the best and the most quietly expensive thing that can happen to you.
Three years, one full rewrite, and a robot my children actually (sometimes) talk to. What it took to get from one Python script and a face made of DALL·E sprites to ROS 2, a Hailo accelerator, and a face drawn with signed distance fields.
Continuing the Form 3+ recovery: getting a root shell by booting the genuine kernel against my own rescue initramfs, finding the bit-rot was far wider than one file, and bringing the printer back by booting its clean A/B slot.
My Formlabs Form 3+ stopped booting with no firmware update and no power event behind it. How I diagnosed it down to the hardware: wiring a serial console, reading the boot log, finding a corrupt C library, and reading the boot flash with a Raspberry Pi.
After the initial build of the printer several issues with SPECTRA line and printer size made it clear that it will not work with required precision with sufficient speed. So my observations are as follows: SPECTRA line should be over 60kg
Workshop space is getting tight — especially since I started building the CNC mill — so I'm trying to use the room creatively.
If you would like to run Waveshare LCD without their special image try this - I've got mine to work on vanilla raspbian with dtoverlay and no special hacks needed. As I was tring to setup this LCD I'v come across all the information that wa
As I have come across excelent build by RichRap I have decided to build 3d printer described in his post at youmagine. Main goal was to build printer that will: be fastbe acuratebe huge :) As I have alredy build my first extruder now was th
This is my photo story showing the creation of my metal extruder from ground up excluding heating ceramic insert and stainless insert.
Reading all the CNC & DIY forums I have grow up to building my own CNC milling machine. Mill is designed to accomodate working envelope of X: 50cm Y: 50cm Z: 45cm epoxy granite gantry design with moving tablescraping table as a solid ba
A CNC mill with an epoxy-granite gantry — slowly taking shape as the new piece of workshop kit :)
Getting nc6400 i was quite disappionted with b/g wireless card. It was even more dissapointing when i discovered that HP employs hardware whitelisting. Putting wireless N card inside you will get "104-Unsupported wireless network device det
Printing wheels is quite common among users of Cupcake and RepRap clones. This movie shows the whole process from printing raft to finishing production. Cupcake makes exsperimenting with robotics a whole new story. ABS is really robust mate
One of my latest projects taking longer than it should to complete. Still missing connection from ARM to FPGA. The board will feature: AT91RM9200 ARM with Micron 32MB SDRAM Xilinx Spartan IIE XC2S150 150k Gates FPGA ATmega32 for easy PWM an
I have created basic library for interfacing nRF2401 with AVR thru BASCOM-AVR. It was tested on ModuBra!nz controller platform and is working quite reliably. The code is somewhat commented but I will try to improve it. There are basic funct
SWBStick project was created as a base for SWB (SWTC) courses which took place of TEC. Main goal of SWB is to familiarise students with real life, current trends in electronics. We choose practical knowledge instead of pure theory. Device h
This design is intended for more powerful robots. I need this to interact with NokiBot. But have experimented with VaioBot and prove that ModuBra!nz is very capable controller. It features: I2C at TTL and LVTLL levels (5V & 3.3V) SPI at
…if you must to! H-Brigdes are quite basic piece of hardware, steering them is where fun begins. For all those of you who prefer easy solution that just work please look into L293 or L298 which can drive two motors with current up to 1A or
Printing this single wheel took 90 minutes — but the wheel has every detail in place, and cutting them by hand would take much longer :)
To extend the swbStick platform further, I had a go at Arduino. I managed to port the bootloader to ATmega32 at 18.432MHz and build the project definitions (Sketchbook) for Arduino.
My latest and probably most ambitious project so far. A walking robot isn't anything unusual — there are plenty of them — but they all share one issue: power efficiency.
PJWSTK's Robotics and Multi-Agent Systems department bought ten iRobot Roombas. The lab is finally clean.
Our wall-e is still pretty dumb, but the future looks interesting. It's the first tracked robot I've built — wheels are decidedly more my thing ;)
Another tiny build, putting some wonderful miniature motors to good use.
My longest-running project. Dominant is a hefty robot, more than 10kg, fitted with a manipulator that can lift over 1kg.
The long road that led to CuBot started here. The thesis project was supposed to be simple and pleasant. It very much wasn't.
My engineering thesis robot. The goal: build a robot that looks like the ones from specialist robotics companies, but at around 100€.
After tankPaq, miniPionier's turn. This one was already laid out as a triangle: two independent driven wheels for steering and rotation, plus a third for balance.