A quick look at the new CR6 data logger and some comments about making sure you're logging what you need.
Just-In-Time Bike Rack
This week I set myself the task of building myself a new bike rack. I wanted it to be cheap, easy to put together with simple tools and to look good. It didn't take me long to find a good design on www.instructables.com and get stuck into building it.
Least Squares - Most Useful (at least most of the time)
12d Model and KODA
12D MODEL RESELLER - USA
KODA is excited to announce that it has been appointed as a Reseller for 12d Model – Surveying, Civil and Water Engineering software – for the USA.
12d Model is used in over 65 countries, and the uptake continues every day. Version 11 has just been released. Along with that come many enhancements, including 12d Field, and of particular note, some new functionality for underground construction.
Convex Hulls...No, Not Sailing
Convex Hulls…No, Not Sailing
KODA had some fun this week playing around with Convex Hulls. It’s not a new idea for the spatial sciences, but it’s a new idea for KODA. It’s something that started as a quick and dirty way to find a 2-dimensional boundary around a cloud of points. It works great and is fast and stable.
Roll with the Pitches
Euler Rotations
Whether it’s a roadheader, rockbolter, excavator or TBM, one of the fundamental components on any navigation/guidance system is the dual-axis level sensor located on the main body of the machine. The purpose is obvious: to correct the calibrated coordinate system of the machine to the gravity system. But you need to be careful about a few things…
We Don't Like an Inch
Seattle’s Bertha
KODA read an article in the New York Times last week (“In Seattle, a Sinking Feeling About a Troubled Tunnel” http://nyti.ms/134X4Z2) about Seattle’s stranded TBM ‘Bertha’ – more specifically, the problems some locals are having with cracking as a result of subsidence around the shaft being used to rescue the giant machine.