Etching Chemicals
I've been having a happy afternoon researching chemical suppliers. The two solutions I've decided to target are the Edinburgh Etch and the etching solutions using Copper Sulphate. There is lots of inf…
Category: Uncategorized
Party pics!
The evening's etching update
Cooool, while I was browsing the web looking for metal plate suppliers last night, I found these guys, Edinburgh Printmakers Studio. They say they would be happy to sell small quantities of supplies t…
Etching research
So, an evening's research on the portable difference engine later :) It seems Copper Sulphate is the best option, as it is reasonably non-toxic, easily obtainable, and doesn't generate toxic vapour du…
Thin brass plate
Hmmm, anyone know where I can get thin brass plate in edinburgh (or copper)? I've just been reading about electrolytic etching and I want to play! I remember trying electroplating things with my chemi…
geocaching
We tried the Garden Sculptures geocache today. Dead fun, will definitely do it again. I especially liked being able to have a wee treasure hunt in the middle of the city as a small break from shopping…
Success!!
After an afternoon of learning APIs and library porting, I have just taken my first camera picture controlled over USB/PTP by clicking a GUI button on the Nokia N770! Apart from porting the python usb…
Cramond
We went to Cramond today; got the 41 bus there and walked down. Had a look at what was left of the the Roman fort, which seemed infested with Dowsers. After that, we walked up the River Almond until w…
Photos from last weekend
Just uploaded some new photos from last weekend to my flickr. Some infrared shots from round calton hill, and my first attempt at a panorama shot. I stitched the panorama together using the opensource…
Beautiful Python
I wrote this line of code last night: reduce(lambda acc,v: (acc << 8) | (v & 0xff), bytes\[::-1\]) That takes an array of bytes, reverses it (for CPU endianness), and then builds it into a single inte…