Dirk 3D Printed Electric Motor BOM: Difference between revisions
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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] $6.42 + $2.30 Shipping | * 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) | * Fidget Spinner Bearings (22mm total diameter, 8mm bore and 7mm width) | ||
**[https://www.amazon.com/Pack-608-2RS-Ball-Bearing-Skateboards/dp/B07C6FL8TW/ref=lp_16411051_1_3?s=industrial&ie=UTF8&qid=1596637217&sr=1-3 Amazon Source ~10 USD for 20; ~0.50 USD per bearing] | **[https://www.amazon.com/Pack-608-2RS-Ball-Bearing-Skateboards/dp/B07C6FL8TW/ref=lp_16411051_1_3?s=industrial&ie=UTF8&qid=1596637217&sr=1-3 Amazon Source ~10 USD for 20; ~0.50 USD per bearing] | ||
* 8 Disc magnets per rotor (8 mm thickness, 20mm diameter) [https://www.aliexpress.com/item/32797367574.html?spm=a2g0s.12269583.0.0.23ca74d74jPZDB 26.42 USD for 20]. Much more for USA source - $3 each - so $24/motor. [https://appliedmagnets.com/neodymium-magnets-3-4-in-x-3-8-in-rare-earth-disc-p-689.html] | * 8 Disc magnets per rotor (8 mm thickness, 20mm diameter) [https://www.aliexpress.com/item/32797367574.html?spm=a2g0s.12269583.0.0.23ca74d74jPZDB 26.42 USD for 20]. Much more for USA source - $3 each - so $24/motor. [https://appliedmagnets.com/neodymium-magnets-3-4-in-x-3-8-in-rare-earth-disc-p-689.html] | ||
**Ebay - around $2 equivalent - [https://www.ebay.com/itm/Lot-50-100-Pcs-Round-Disc-Block-Magnets-Cylinder-Rare-Earth-Neodymium-N52-N48/192608399976?hash=item2cd85af268:g:yV8AAOSwXclbV-yu&var=492744901667] | |||
* Copper wire (0,2 mm diameter max. definitely not more because you will get eddy current issues) [https://www.koper-draad.nl/product/koperlakdraad-02-mm-awg-32-lengte-1730-meter/] (Enameled copper wire ie [[Magnet Wire]] ) | * Copper wire (0,2 mm diameter max. definitely not more because you will get eddy current issues) [https://www.koper-draad.nl/product/koperlakdraad-02-mm-awg-32-lengte-1730-meter/] (Enameled copper wire ie [[Magnet Wire]] ) | ||
**Cost of $1-2 per motor using the $7 spools. | **Cost of $1-2 per motor using the $7 spools. | ||
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* 3d printing filament (kg estimate, also infill needed) | * 3d printing filament (kg estimate, also infill needed) | ||
* a little bit of epoxy to glue the magnets in place [https://www.reichelt.de/epoxykleber-epo-05-klar-farblos-5-minuten-25-ml-wiko-epo5-s25-p98449.html?PROVID=2788&gclid=EAIaIQobChMIppvr5Zj_6gIVSeJ3Ch2vIAwoEAQYBCABEgL2z_D_BwE&&r=1] | * a little bit of epoxy to glue the magnets in place [https://www.reichelt.de/epoxykleber-epo-05-klar-farblos-5-minuten-25-ml-wiko-epo5-s25-p98449.html?PROVID=2788&gclid=EAIaIQobChMIppvr5Zj_6gIVSeJ3Ch2vIAwoEAQYBCABEgL2z_D_BwE&&r=1] | ||
=Links= | =Links= | ||
*[[Dirk's Electric Motor]] | *[[Dirk's Electric Motor]] | ||
Revision as of 16:01, 23 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) 26.42 USD for 20. Much more for USA source - $3 each - so $24/motor. [2]
- Ebay - around $2 equivalent - [3]
- Copper wire (0,2 mm diameter max. definitely not more because you will get eddy current issues) [4] (Enameled copper wire ie Magnet Wire )
- Cost of $1-2 per motor using the $7 spools.
- Bit of brass tubing (4 mm outer diameter) to connect the coil endings in. [5]
- 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 [6]