Saturday, 29 November 2014
I've been working on some Christmas brooches for a craft faire I'm going to this week. Feels a bit like working on project 365 again. This robin, and these items, are made from a poplar ply backing and covered in layered wood veneers to give it some depth.
Thursday, 27 November 2014
After the great boxplosion of twenty fourteen my cubic pumpkin got rather neglected. Halloween came and went and I was busy working on Fraggle rock so this week I decided to carve the pumpkin rather than let it go to rot with all the others. It's a lot squarer than the first one and it made carving the flat faces easier but I'll give it another shot next year and see if I can get the things I really want cut into one.
This is a 24 Piece, Chuck Type, Burr Puzzle, made from 12mm Poplar plywood. The chuck type burrs have U shaped sticks of varying lengths and 1-2 locking sticks to keep the whole puzzle together. The locking pieces were made by creating a U shaped stick and then rotating it 90 degrees and removing the locking section. It's also possible to make a 6 piece burr but the larger puzzle is much more interesting to assemble, plus you can make the 6 piece with parts from the big one (svg here)
Wednesday, 26 November 2014
Inspired by the King of Randoms Micro crossbow on Instructables I decided to up the ante a little and laser cut a matching crossbow but this one has a trigger to launch the projectile. I'll be writing an instructable for it shortly but for now here is the file (svg here).
Tuesday, 25 November 2014
Clearly I'm in a festive mood this evening because I've made 2 more characters to go with the snowman.(svg here)
They're now available in my shops too
I made this light beacon for EMF camp (you can just about see it in this post). It sat on top of the laser and span round slowly shifting between 2 colours all weekend. People like Blinkenlights and I got a few compliments on it, especially as we left it running in the dark all night. Not bad for something slung together in a field. I never got round to posting it. I had a lot of fun with yesterdays alarm clock though so I thought I'd resurrect it and put a whole bunch of new patterns into it.
I didn't quite get as many done today as I hoped but I did have fun coding and I also got electrocuted by it (entirely my own fault). I have at least set up a framework for adding animations, so next EMF camp/Maker faire I can just add patterns as I think of them. Here is a short video of the 4 patterns it now cycles through. It's no LED cube but it's a start.
Monday, 24 November 2014
This item is nearly 12 months overdue but I'm really pleased I actually got round to finishing it. It's another small stellated dodecahedron but it is much better known as Gravitation by M.C. Escher. 12 Turtles sit amongst the shape, the turtles are not fixed down instead relying on the framework to hold them in place. When rotated the turtles rattle around which makes a pleasing noise. Each turtle outline was cut from ply and painted before it was returned to the laser cutter to have the details added to it.
Eli sleeps with a little Gro Clock in his bedroom, for those that don't know it's an alarm clock the switches between a day and a night image so children who can't tell the time know when it's acceptable to get up in the morning. I would recommend them. Sadly I left ours at Grannies after the weekend and Eli wasn't keen to sleep without it. So I rummaged round the garage, found some parts I knew were out there and knocked together this arduino based version of the same clock. Being Arduino relied on the existing libraries to write the code quickly.
- Power for the whole arrangement comes through the USB connection
5V, GND from both the RTC and the Neopixel Ring are connected to the Arduino.
- Data in from the Neopixel Ring connects to Digital input 2 on the Arduino
- SCL of the RTC goes to Analogue input 5 on the Arduino
- SDA of the RTC goes to Analogue input 4 on the Arduino
- Wire Library - for connecting to the RTC with I2C
- DS1307RTC Library - for understanding what the RTC says over I2C
- Time Library - lets the Arduino understand times
- TimeAlarms Library - executes functions at specific times/intervals
- FastLED Library - for communicating with the NeoPixel ring
Full source is available for download from here
- The first lines of the setup function define the time that the alarm will go off
- The RTC and Neopixel ring are initialised
- Two alarms are created, one at the time previously specified another an hour later
- The main loop of the program does nothing except create a delay that keeps the timer ticking
- LightsOn function, creates the short sunshine animation when the alarm goes off
- LightsOff function, switches the LED's back to night time colour
Sunday, 23 November 2014
I'm heading to a local craft faire at the start of December and I wanted to make something Christmassy and pocket money priced. Given that the previous tessellations have gone down well I thought these Koch Snowflakes tick all the boxes will still being geeky and Mathemagical. I'll let you know if they sell well :)
After several requests these snowflakes are now up for sale in my webstores