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Difference between AR3 and AR2 is that each motor in AR3 have rear shaft and mounting holes for encoder. Here is the youtube video show how to build a AR3 robot by yourself OPEN SOURCE LOW COST ROBOTS If you expect to ..
As low as : $439.90
This kit only has motors in AR3 as the below. Package includes: Keys on motors are taken apart by default. 1 x Nema 17 Dual Shaft Stepper Motor L=39mm Gear Ratio 10:1 High Precision Planetary Gearbox 9.5mm Rear Shaf..
As low as : $296.16
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