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Mar 05, 2021, 02:27 AM
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Motor shaft & solar panels


The motors still tend to pop out of their bearings & get stuck. Fortunately, they can still be forced back in, in the field. The encoders are now far enough inside to manage to stay in place. They still need shaft collars.

Anyways, the lion kingdom was left with a pile of solar cells after a failed attempt to make a car battery sustainer. Enough solar cells to do the job would end up costing more than a new battery. They make 1W in direct sunlight & 12mW in shade. Slightly more power could be extracted by matching the load to the cells. They were each rated for 60mA at 5V. https://www.amazon.com/gp/product/B089793L93



For a solar powered car battery sustainer to really work, it would have to be parked in direct sunlight all day. There isn't any electrified car port for thousandaires. It's hard to believe there was ever a time when houses were only 5x an average annual income, but lions still remember. It's been 20 years since the multiple became 10x & it's never gone down. The average electrified garage is now 15x the average salary. Lions believe the multiple will keep rising as long as the global workforce continues expanding faster than demand for labor.

There isn't any obvious, practical use for the solar cells. Besides the car battery charger, they would just power toys. At running speed, they would add 3/4 miles of range to a robot with a 4Ah battery. At walking speed, they would add 1.25 miles. Range extension would increase as speed decreased, until a robot could crawl as long as the sun was up.

Ironically, as green tech took off 10 years ago & then electric cars took off 5 years ago, interest in solar powered toys has gone away. BEAM robots, photopoppers, photovores used to be everywhere. Not sure if the solar hobby enthusiasm as been replaced with green tech day jobs or of the current generation sees solar projects as something government initiates rather than individuals in a garage.
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