It was not so simple to set up a Raspberry Pi as a 3D-print server as I had hoped. It started with issues with the WiFi-dongle, continued to a complete black out on all of my USB web cams and finally I gave up… I reflashed the SD-card with the latest full Raspbian Jessie image,… Continue reading OctoPrint – a new attempt
Month: 2016-03-19
OctoPi – WiFi issues
Next step in my journey into 3D-printing would be to set up a server to remote-control my 3D-printer. Since two weeks ago I have a spare Raspberry Pi 2 lying around and Google quickly revealed the existence of OctoPrint. Ok, downloading the image of OctoPi and writing it to a micro-SD, making the necessary changes… Continue reading OctoPi – WiFi issues
Improving the Wanhao Duplicator i3 – Part 1
Yesterday I got my Winhao Duplicator i3 and when I was setting it up and adjusting the print bed I thought: “Is it supposed to be like this?” The print bed is a heated aluminum plate which is mounted on top of the Y-axis sled by four M3 screws, one in each corner. These screws… Continue reading Improving the Wanhao Duplicator i3 – Part 1
The future is here…
…it arrived by mail today – and I couldn’t wait…
Counterfeit chips – again
It’s been a while since I exposed my students to counterfeit chips from dubious eBay channels, but now it has happened again. For a couple of projects I provided my students with dual H-bridge drivers, the Texas Instruments SN754410. I had a couple of these in my personal stock at home, which I had ordered… Continue reading Counterfeit chips – again
Don’t trust the datasheet!
Today I wanted to use a magnetic sensor for a small project. I had three Honeywell 2SS52M sensors in my stock – a magnetoresistive switch, more sensitive than your usual Hall-effect based ones. For my project it didn’t matter, but since I had these lying around I could as well put them to some use.… Continue reading Don’t trust the datasheet!