It’s heavy rainy day. My sister still took her children to Disneyland. I guess that’s what mothers love is.
Cyberport My Innovation Carnival
Last weekend, Dim Sum Labs members Paul and Manolis showing their 3D printers to the public at Cyberport My Innovation Carnival, and I was there to help out little bit. Manolis created a web app that allowed other to interactive with the 3D printer, and the result would be shown on the paper. Paul presented his hacked version of Makibox. (for more detail about Paul’s Makibox, chick here: http://mymakibox.blogspot.hk/ )
It was successful event that we had attracted a lot of people who were interested in 3D printing. Kids were fascinating about the printing process, and so did many parents got a lot of questions about them too.
Another member from Dim Sum Labs Alfred also got a booth for his Open Hardware project Indoor Air Quality Monitor. Alfred designed his own expansion sensor board for Raspberry Pi, and which would be crowd funding at Indiegogo after July 13, 2014. Looking forward to his Air quailty Monitor and good luck for him!
For another four years
Goodbye my favour team France for World cup 2014. 🙁 So, was joking with my friend that I would keep the jersey for next World cup… yea, and I bought this four years ago… haha..

Dim Sum Labs Maker Monday – conductive paint
Last night Dim Sum Labs hosted a workshop for making conductive paint which can use it to paint for conducting circuit. The paint was based on nano copper particles suspended from mixing Ascorbic Acid and Copper Sulphate.
The fun part was that our host William and Ally were actually first time making this, which we would expected a lot of experiments for the night.
Our ref video link: https://www.youtube.com/
First, Ally carefully measured and mixed the Ascorbic Acid and Copper sulphate in a water bottle.
After awhile, the chemical reaction produced small amount of nano copper particles. (which we would expected more) We waited and tried different methods to dry out the particles (like putting in a microwave). we got only enough to draw a small circuit for now.
And it worked!!! we successfully lighted up the LED with the conductive paint!
yea! it was a successful experiment.
Face Detection with OpenCV
Finally got my face detection working with Xcode. My test with code from OpenCV tutorial. hehe..
Tutorial is here: http://docs.opencv.org/doc/tutorials/objdetect/cascade_classifier/cascade_classifier.html#cascade-classifier
Nothing really changed since it was just a test. It was fun even I did not write up the code. 🙂