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Simulation of wind gusts for crosswind stability
While reading on human-powered vehicles (HPVs), one of recurring themes seems that all HPVs tend to be unstable in crosswinds. To me, this seems to be the main limitation of HPVs and lightweight EVs: they all sound nice in paradise climates like the Bay Area, but in more miserable climates only the most dedicated ones ride HPVs all year round. If I ( Read more... ) -
DIY carbon disk wheels
If one wanted to make composite wheels as a DIY project, I imagine, it makes sense to get deepest Alu rims available, to increase the carbon-Alu gluing surface. It probably also makese sense to test the self-built wheels using static load first, then on an existing bike. Sounds like a good project to get one's feet wet in CF building ( Read more... ) -
Source of affordable Titanium parts
If one had to build an HPV on a budget, yes make it lightweight and strong, using off-the-shelf aircraft grade materials seems reasonable. I've previously used parts from Aircraft Spruce in my DUY projects ( Read more... ) -
Purifying proteins in a walk-in -20 freezer room
The lab has been trying to express a particular type of fusion protein in bacteria, and this series somehow tended not to make it to the end of the first Ni-NTA elution in one piece. They seem to like to fall apart into two-three pieces. We did everything right otherwise (protease inhibitors, 4C, fast protocols, etc). I am not a protein prep guru, ( Read more... ) -
Building large molds for velomobiles on a budget
While researching methods on velomobile building, it appeared to me that the most epic stage is building the shell. If done properly with composites, one needs to sculpture a mold. For a one-off project, it's a huge undertaking that takes a lot space and produces a mess. So one needs a garage and a angel spouse, too. On top of that, once you are ( Read more... ) -
Can you make a velomobile for under 2K?
Contacted Begorett about the projected costs of their vehicle.
http://begorett.com/news/order-list-2/They intend to offer it at an initial price higher than the Quest by Velomobiel, hoping it will gradually go down. I have reservations ( Read more... ) -
In-hub gears and drive-shaft drive in velomobiles?
Has this been done? Considering how much pain it is to do do work on this Quest velomobile, in-hub gears and a drive shaft are the way to go! A long drive shaft going back would be a pain, may be front-wheel drive. That would be an engineering feat!
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Increasing the resistance of human-powered vehicles to side wind and bad weather
This was compiled based on reading discussion forums on HPVs, as well as information from other fields, e.g. wheelchairs, car tuning, airplane design etc. Some thoughts may be entirely wrong/outlandish.
Goal: make human-powered vehicles roadworthy in bad weather conditions. The arguments also apply to any light-weight vehicles, e.g. if human power ( Read more... ) -
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