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Meeting Report for Wed 21st April 2010
Written by RichardJones   
Wednesday, 05 May 2010

Sixteen people attended on our first meeting this year without daylight
saving. The gold coin collection raised $22.90 for Science Alive.

 Synco opened with a talk about problems with CAA approvals for GPS
boomerang and his new powered plane with choices for autonomous and remote
control to work around flight restrictions and address new markets. He also
brought along servos adapted for 180 degree operation with additional
resistors at the ends of the feedback potentiometer. The servos were driving
a laser for test purposes but ultimately are intended to drive a tracking
aerial. Hooked into the xplane flight simulator to track a simulated plane
position the pointer looked very convincing with a neat swivel at times to
overcome the lack of 360 degree rotation. See http://gpsboomerang.com

 Timothy showed us the beginning of a football robot simulation written in
python as part of the journey toward Junior Robocup football. The simulation
accepts a mouse entered track and displays a graphic that turns in the
direction of travel. Bravely Timothy also showed us the source code and
walked us through its operation. http://github.com/tfhmanning/Robotic_Python

 Hanno gave us a preview of his new robot development called TBot destined
for schools. It has dual geared motor drive with rototion sensors on large
wheels, 5 line following sensors, zigbee, bluetooth, usb, speaker,
microphone, tri colour LED with a target price of $50 US. It interfaces to
the 12 blocks programming environment and is based on the Parallax
Propeller. The robot will recharge its batteries through the USB cable.
Holes in the top plate accept many extensions such as Meccano, Lego and Vex.
Further details on http://hannoware.com <http://honnoware.com/> as they
become available.

 Timothy took to the floor again and showed further developments on his
tethered under water robot (ROV) made from electric motors, brass
propellers, drain pipe directional tubes and polystyrene to achieve neutral
buoyancy. Timothy showed a video of an ROV conducting a set of tasks for a
competition in the US.

 Charles brought along a vacuum forming jig for making model Dalek parts and
had a number of different materials that he had vacuum formed.

 Kay showed us his walking legs now with an energetic gait and steerable
zimmer frame that walked rapidly across the car park.

 Thanks to all who came and especially those who brought things to show. Our
next meeting is planned for Wednesday 16th June 2010. See http://kiwibots.org for
final date and directions.

Late breaking news: Expect an impromtu meeting with Chris Hamling from http://vexrobotics.co.nz/ regarding a new national robotic competition.

Richard Jones

Last Updated ( Wednesday, 05 May 2010 )
 
What we did on Wed 17th Feb 2010
Written by RichardJones   
Thursday, 18 February 2010
We had a select gathering on a wet evening.
Kay brought along a life size pair of walking legs supported on a mock Zimmer frame with wheels. The legs walked even more realistically than last time we saw them.
Carl brought a 5 channel sound system which he gave away for repair, and showed the iPhone application that he's been working on.
Charles showed a stepper motor based robot platform using 24v 7.5 degree steppers, discrete darlington transistor drivers, arduino control board and a roll on deodorant front castor. The robot moved under control of switches for direction and a potentiometer for speed. Charles also talked about what CAD packages people use, especially those where you may start for free and upgrade to a more capable package.
I took along my 1.8 degree stepper motor based micromouse, still not moving on its own, maybe next time. It uses the kiwipatch pcb available from http://brightsparks.org.nz. Students get a free kiwipatch board in exchange for a photograph of how the last one was used. Otherwise they cost $4 each and are great for mounting PICAXE or AVR chips.
Steve brought an educational puzzle/display nearing completion. It had heaps of LEDs and large removable puzzle knobs with embedded magnets and fancy flashing led sequences. All controlled by a pic axe with darlington driver ICs. When it has the artwork incorporated it should be great fun to use.
Hanno showed us his 12 blocks programming language for young children integrated with a Propeller board, flashing LEDs with just a few mouse clicks. It now has forward and back annotation between the 12 blocks graphical programming language and the spin files that it creates for the propeller.
Phil talked about Chch Creative space now rebranding as Space Craft. They currently meet on Wednesday nights from 7pm to 11pm at the Canterbury Innovation Incubator, 200 Armagh Street, Christchurch http://spacecraft.org.nz/
Sachin talked about his six legged walking platform having problems moving under its own weight, I would love to see that.
Jimmy brought along his ATTiny2313 USB programmer and we put some code into it, let us know when its is programming AVR micros.
Sorry no photos this time. Let me know if I have missed anything.
Our next meeting will be on Wednesday 21st April 2010 at 6.30pm in the Science Alive Seminar Room. See you there!
More info on http://kiwibots.org

Richard Jones
 
Meeting Report Tue 15th Dec 2009
Written by RichardJones   
Wednesday, 16 December 2009
Last Updated ( Thursday, 17 June 2010 )
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