James Stanley

Posts tagged 'lawnmower'

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Chassis Design with Finite Element Analysis in FreeCAD »

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 »

The 2019 BLMRA 12 hour lawnmower race »

Fri 9 August 2019

We raced at the BLMRA 12 hour again this year. Read more »

How to make a rev limiter with an Arduino »

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 »

We entered the BLMRA 12 hour lawnmower race again »

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 »

I tried to do the BLMRA 12 hour lawnmower race »

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 »

James Stanley - james@incoherency.co.uk | ricochet:it2j3z6t6ksumpzd | jesblogfnk2boep4.onion | @jes@mastodon.jes.xxx | [rss]