Revision as of 14:19, 5 August 2020

3 phase no feedback Controller - 12V 30A - [1] $6.42 + $2.30 Shipping
Fidget Spinner Bearings (22mm total diameter, 8mm bore and 7mm width)
8 Disc magnets per rotor (8 mm thickness, 20mm diameter) [2]
Copper wire (0,2 mm diameter max. definitely not more because you will get eddy current issues) [3]
Bit of brass tubing (4 mm outer diameter) to connect the coil endings in. [4]
Solder
Glue (the type that sticks)
8 mm metal rod for an axle (offcuts from universal axis are great for this)
3d printing filament (kg estimate, also infill needed)
a little bit of epoxy to glue the magnets in place [5]

Links

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-* 3 phase no feedback Controller - 12V 30A - [https://www.ebay.com/i/362671207620?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=362671207620&targetid=917185845248&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10459841973&mkgroupid=104612009900&rlsatarget=pla-917185845248&abcId=2146002&merchantid=137736463&gclid=EAIaIQobChMIiab0r7X66gIVzZ6zCh2hawOYEAQYAyABEgL6tfD_BwE]
+* 3 phase no feedback Controller - 12V 30A - [https://www.ebay.com/i/362671207620?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=362671207620&targetid=917185845248&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10459841973&mkgroupid=104612009900&rlsatarget=pla-917185845248&abcId=2146002&merchantid=137736463&gclid=EAIaIQobChMIiab0r7X66gIVzZ6zCh2hawOYEAQYAyABEgL6tfD_BwE] $6.42 + $2.30 Shipping
 * Fidget Spinner Bearings (22mm total diameter, 8mm bore and 7mm width)
 * 8 Disc magnets per rotor (8 mm thickness, 20mm diameter) [https://www.aliexpress.com/item/32797367574.html?spm=a2g0s.12269583.0.0.23ca74d74jPZDB]