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Chinese A123 Cell testing
I’m designing a battery for our go-kart team ArcWolf Racing. Basic specs are around 88V and 30-40Ah, and one of the prime candidates are the 3.2V 20Ah A123 pouch cells, configured at 28S2P for 89.6V...
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A123 capacity and internal resistance
The 3 cells are now assembled into a pack, which will speed up testing compared to doing each individually. 6 cycles have been performed on the pack so far, and the performance has been consistently...
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Sevcon Gen4 AC motor controller teardown
Here’s a look inside a Sevcon Generation 4 AC motor controller. This particular one is the 80V 350A model, sourced for the ArcWolf racing go-kart. Two were purchased from an eBay seller in located in...
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Pneumatic Hand Dryer
Installing a central compressed air system begged the question “What useful things can we do with compressed air?” One of the first ideas was to make a clone of the Dyson Airblade type hand dryers for...
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HSC768 High-speed camera intro
The HSC80 was a fun project, but suffered from speed limitations, as well as a limitation facing almost all high-speed cameras: it requires a PC to fully operate and save videos. From the beginning of...
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Strong 2.5kW Xenon lamp ballast teardown
This is a Strong model 62-80005 Xenon short arc lamp ballast, out of the now demolished Station Square cinemas at Metrotown. This drove lamps up to 2.5kW for the small auditoriums in the cinema. The...
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Fixing flickering Ikea Jansjö lamps
Fix your flickering lamps without a new switch! The Ikea Jansjö is my favorite desk work lamp. Some of the older ones have problems where they start flickering or stop working entirely. This is often...
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Importing multiple Altium 3D PCB exports into a single Solidworks project
Altium Designer has powerful 3D tools, allowing you to export a STEP model of a PCB. This is very convenient as a complete 3D model of your PCB can easily be imported into CAD programs such as...
View ArticleChronos 1.4 camera application links
This page links to the chronos_cam_app on Github and Forum Topic because Youtube will only let me link to an approved site (this one) with cards.
View ArticleIkarus electric “rocket”
Ikarus is a thrust vectored flying ducted fan. This page has the design files for the project. See an overview of Ikarus in this video: This is an advanced RC project, I don’t recommend this for...
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