STOP THE PRESS -> CA can be used for THRUST CONTROL and more

[amberwolf]

Only an extreme gangster can spin the rear wheel

I can only spin mine if I'm not on the bike, on loose pavement or dirt. However, in the right gear I can get it to slip if I gun the throttle when turning on same loose pavement or dirt, right before it starts slipping the chain due to insufficient derailer tension to hold it on.

Once I build a direct-to-rear hub drive without a derailer, using something like Thud's 2-speed dog-clutch, I think I could probably spin the wheel at least with a fresh full charge on there, at 36V. At 48V I am almost certain I could do it.

And that with just a "650W" wheelchair/powerchair motor and gearbox.

Now, getting it to spin on sticky new pavement; that's another story. :lol:

 

[rscamp]

Speaking of spinning wheels, now I'll be able to do that easily with my brand-spankin' new hub motor...

...just as soon as I connect the batteries and there's a heavy snowfall...

Definitely looking forward to trying out the PI control features on the CA!

 

[methods]

I liked the downhill video.

-methods

 

[Holz2010]

In the "downhill" video where he is leaning into corner, the ride is a Steintrike. There are only a handful of recumbent trikes out there currently with front suspension, and Steintrike is one of them. This should make the leaning, and the stability, better at higher speeds.

 

[Kiwi]

Regarding the temperature control as posted earlier, i found this little thermocouple board that outputs 0 -5v =to 0 to 500deg.
Perhaps it could be tuned to a narrower range.

Or hook up to a panel meter for a tidy little thermometer.

http://reprapdoc.voodoo.co.nz/bin/view/Main/Thermocouple_Sensor_1_0

 

[amberwolf]

Well, the chip itself appears to be limited to 10mV per degree C, if I read the spec sheet correctly, so it has a fixed range that depends on your supply voltage. However, you could easily add an op-amp scaling and offset circuit, so that it scales that output voltage up quite a lot, forcing it to go from 0V to 5V for say, 200C instead. Or less, if you like.