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Mon 28 September 2020
We could automatically detect whether the racing mower is about to run out of fuel by shining a light through a section of clear fuel hose with a sensor on the other side. The idea is that when the fuel has disappeared the received light intensity will change, and we can detect this with a microcontroller. We can then turn on an LED on the dashboard to alert the driver so that he makes a pit stop instead of spluttering to a halt at the opposite end of the track. Read more »
Tue 7 January 2020
Finite Element Analysis is a way to calculate the stresses and strains on an object in various load conditions. The object is modelled as a series of "finite elements" (in our case triangles), and then we specify the locations of points that can't move (fixed points), and the locations, magnitudes, and directions of forces that are present. Read more »
Fri 9 August 2019
We raced at the BLMRA 12 hour again this year. Read more »
Mon 22 July 2019
My racing mower has a tendency to over-rev on long straights. To avoid damaging the engine, we have been lifting off the throttle, but a more reliable solution would be an electronic rev limiter. I did buy a commercial rev limiter made by AccuSpark, but was unable to fit it to my mower because the AccuSpark unit needs access to both sides of the ignition coil, and my ignition coil is inaccessible, inside a black box with all the other ignition electronics. So my solution was to make a rev limiter with an Arduino. Read more »
Sat 11 August 2018
After last year's poor show at the 12 hour, we did some much-needed work on the mower and had another go. Read more »
Wed 16 August 2017
Earlier this year I bought a ride-on lawnmower to go lawnmower racing. I talked Feroz Salam and James Nicholls into driving it with me, and Matt Game and my Dad into helping in the pits, and we entered the BLMRA 12 hour endurance race. Read more »