September 2020

Cyanotype Attempt #1

Cyanotype Attempt #1

A Cyanotype is an early photographic method which yields a characteristic Prussian Blue image. It is literally how you make a "blueprint". I've done this before on a small scale, but I'd forgotten the…

Epoxy Resin Casting Attempt #3

Epoxy Resin Casting Attempt #3

I wasn't going to post another of these attempts as I'd hoped to be actually doing something with it now, but as it turned out, the red owl was a failure. It never cured properly: I figured out I'd si…

Making a UV Exposure Box

Making a UV Exposure Box

I've been wanting one of these for a while for some other projects I have planned. Previously I've (ab)used an old EEPROM eraser box, but (a) I wanted something a bit larger and (b) it isn't mine and…

Moles, Avogadro's Number, and Atomic Mass Units

I quite enjoyed Chemistry in Secondary School: I think I even did a CSYS course in it. However, I remember always having problems with the concept of a Mole and the calculations surrounding it. I'm no…

Making Skeletonised Leaves

Making Skeletonised Leaves

I decided I wanted to try making some skeletonised leaves. So I did some Googling and decided to try this approach. We went out in the evening and gathered some leaves from the local Shrubbery. Totall…

Knitting Machine: Needle Router Working!

Knitting Machine: Needle Router Working!

Check this out! https://youtu.be/zFk4xcyWZeI Needle Router v2.1 Demo I've actually had the main design on the whiteboard for a few weeks, but I wanted to play with other things for a bit: This is v2.1…

Making a Copper Leaf and Perspex Lampshade

Making a Copper Leaf and Perspex Lampshade

This is a slightly older project, but since I'm waiting for the new knitting machine design to print, I thought I'd write it up. One of our standard lamps needed a new shade, so I decided to make one!…

Epoxy Resin Casting Attempt #2

Epoxy Resin Casting Attempt #2

I tried the resin again, this time using the vacuum chamber. I mixed it up (using a different glow in the dark colour this time), and cycled it in the vacuum chamber a couple of times. The resin mixtu…

Boiling Water in a Vacuum at Room Temperature

Boiling Water in a Vacuum at Room Temperature

My Vacuum pump and chamber arrived! I went for a Bacoeng 3 CFM Single Stage Oil Filled Rotary Vane Pump (BA-1) and a slightly more expensive tempered-glass-topped 6.8L vacuum chamber. I could have got…

Epoxy Resin Casting Attempt #1

Epoxy Resin Casting Attempt #1

I wanted to try something different so I thought I'd give Epoxy Resin casting a go. I have this cute Greek holiday trinket I inherited from my dad which I felt would make a good test piece: So, to cas…