Author Archives: mechatronicsguy

Guiding ships with Moire patterns

I was inspired by Tom Scott’s excellent video and links here https://www.youtube.com/watch?v=d99_h30swtM   where he talks about a particular type of “Inogon” light used to guide ships through channels or harbours. The patent is here: https://patents.google.com/patent/US4629325 and the military report on the … Continue reading

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Boxmaking jig – the “cladding ruler”

I often find myself making wooden boxes for projects, and my favourite way is with plywood and batons, glued and nailgunned together. I usually make the left and right box sides with batons reinforcing, then the top, bottom, front and … Continue reading

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My globe now featured on Tested

I’m pleased as punch that my project was picked up by the youtube channel Tested. Norm and Sean lasercut my Dymaxion globe here: I’m also glad they noticed a few of the features I spent time on (such as reusing … Continue reading

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How Big is the Universe – Exploring the Hubble Ultra-Deep Field

This is a way to visualise the size of the universe, and in particular how much of the sky the amazing ‘Hubble Ultra Deep Field’ picture takes up. https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field The Ultra Deep Field is 2.4 arc-minutes wide (0.04 degrees), so … Continue reading

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Lasercut Contact Goniometer for Crystallography

Just a quick one this time. Here’s a simple lasercut design for a ‘contact goniometer‘ which is used for measuring the angles between two faces of a crystal.   It’s lasercut from 3mm acrylic, and to make the engraved text … Continue reading

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CPK Molecular Models with Polymer Clay

I’ve been getting into molecular modelling recently, and I wanted to experiment with different ways of making my own models cheaply and easily. I liked the colour scheme and layout of the CPK modelling made by Linus Pauling and others, but … Continue reading

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Lego Crystallography

I’ve been reading up on crystallography recently for an upcoming project, and I was having a hard time wrapping my head around Miller indices. I kinda got it, but I wanted something tangible to work with, darn it. I started making … Continue reading

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