Difference between revisions of "Motors"
From WhimWiki A Wheelchair That Makes Sense
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{| class="wikitable" style="float:right; margin-left: 10px;" | {| class="wikitable" style="float:right; margin-left: 10px;" | ||
|+Desired Speed -> RPMs | |+Desired Speed -> RPMs | ||
| − | !mph | + | ! mph !! in/min !! RPMs (26”) !! RPMs (24”)!! RPMs (20”) |
|- | |- | ||
| − | |10 | + | | 10 || 10560 || 129.28 || 140.06 || 168.07 |
|- | |- | ||
| − | |9 | + | | 9 || 9504 || 116.35 || 126.05 || 151.26 |
|- | |- | ||
| − | |8 | + | | 8 || 8448 || 103.43 || 112.05 || 134.45 |
|- | |- | ||
| − | |7 | + | | 7 || 7392 || 90.50 || 98.04 || 117.65 |
|- | |- | ||
| − | |6 | + | | 6 || 6336 || 77.57 || 84.03 || 100.84 |
|- | |- | ||
| − | |5 | + | | 5 || 5280 || 64.64 || 70.03 || 84.03 |
|} | |} | ||
==Chair Requirements== | ==Chair Requirements== | ||
| − | * | + | *Drive wheels using standard bicycle sizes |
| − | **= 81.68" circumference (depending on tire?) | + | **26" = 81.68" circumference (depending on tire?) |
| + | **24" = 75.40" circumference ... | ||
| + | **20" = 62.83" c... (BMX bike wheel) | ||
*Two motors (1 per side) | *Two motors (1 per side) | ||
**An alternative would be four-wheel drive, using Mecanum [[wheels]] | **An alternative would be four-wheel drive, using Mecanum [[wheels]] | ||
*Target top speed of 10 mph (16 kph) | *Target top speed of 10 mph (16 kph) | ||
| − | **Ability to limit this, based on user requirements | + | **Ability to limit this, based on user requirements, normally limited to 7 mph |
==Weight Requirements== | ==Weight Requirements== | ||
| + | Completely arbitrary for now... | ||
*200 lbs Rider | *200 lbs Rider | ||
*250 Chair (Frame, batteries, motors) | *250 Chair (Frame, batteries, motors) | ||
