Author Archives: andygrove

SparkFun AVC 2015 recap

Well, that could have gone better… SparkFun AVC 2015 is over and was an epic fail for G-Force 2.0, our entry this year. G-Force 2.0 was a minor update of our 2014 entry, which came in second place in peloton class. This year, the chassis was made from laser cut wood and was much smaller and lighter than last year, allowing me to use faster motors with… Read more »

G-Force progress

After a break of several months I’ve finally had my second attempt at a laser cut wood design and this time all the pieces did fit together! There were some gaps that needed filling so it wasn’t perfect, but it was close enough. Here’s a quick photo of the new chassis for my autonomous vehicle. I’m really pleased with the results and… Read more »

G-Force 2.0 Concept

I had some time this evening to start playing around in Sketchup to design a rough concept for the next version of my autonomous vehicle. This time around, I’ll be using laser-cut wood rather than my own woodworking skills. One design goal is to make it easier to access the motors and electronics for repairs so I’m designing “access hatches”… Read more »

Sparkfun AVC 2015 Rules Announced

If you haven’t already seen, Sparkfun just announced the rules for this year’s competition. It’s a shame there is no aerial course this year, but let’s face it; it was only a matter of time before there was a nasty accident. There are still some details to be announced, such as the details around the special 150 point-earning short-cut. I’m… Read more »

The Darby Digger

andygrove   January 4, 2015   3 Comments on The Darby Digger

My Dad told me about the Darby Digger many years ago and I just saw another mention of it today and I thought I’d share it here. The Darby Digger was a steam-driven machine for ploughing fields. It was invented around 20 years earlier than the tractor that we are familiar with today. My great grandfather, Robert Hasler, helped build it. Here’s a… Read more »

First 3D Prints

andygrove   December 23, 2014   No Comments on First 3D Prints

I’ve been learning how to use Sketchup to design parts for 3D printing and have now printed my first useful part – a simple mount for an HC-SR04 ultrasonic sensor. There are plenty of designs I could have downloaded from Thingiverse, but I wanted to design my own as a learning exercise. Here’s the rendering of the design in Sketchup: Here is the… Read more »