Cordless Drill: Difference between revisions
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=Intro= | |||
*Brushless motor has electronics tronic commutation istead of brushes. It is more efficient and longer life than brushed. | |||
*It is also simpler to build per see, as the complexity goes into the controller | |||
*Lithium ion + brushless motor are state of art - [https://www.google.com/amp/s/lifehacker.com/are-brushless-cordless-tools-worth-the-cost-1652673079/amp] | *Lithium ion + brushless motor are state of art - [https://www.google.com/amp/s/lifehacker.com/are-brushless-cordless-tools-worth-the-cost-1652673079/amp] | ||
=BLDC Motor Controller= | |||
*65x40 mm size, 300W, 24V, $20 - [https://www.amazon.com/Brushless-Controller-DROK-Three-phrase-Sensorless/dp/B07D9B6J78/ref=mp_s_a_1_fkmr1_1?ie=UTF8&qid=1546805217&sr=8-1-fkmr1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=bldc+controller+100W] | |||
=Batteries= | =Batteries= | ||
| Line 5: | Line 11: | ||
*But Lithium is a scarce resource | *But Lithium is a scarce resource | ||
*Comparisons n of bats - [https://www.electronicdesign.com/energy/batteries-101-nickel-lithium-and-beyond] | *Comparisons n of bats - [https://www.electronicdesign.com/energy/batteries-101-nickel-lithium-and-beyond] | ||
=Geared Motor, not BLDC= | |||
*300 rpm - [https://www.amazon.com/uxcell-Reduction-Electric-Eccentric-Diameter/dp/B01N56QLMM/ref=mp_s_a_1_12?ie=UTF8&qid=1546804493&sr=8-12&pi=AC_SX236_SY340_FMwebp_QL65&keywords=dc+brushless+motor+24v] | |||
=Brushless (BLDC)= | |||
*12/24 - 3000 RPM - [https://www.amazon.com/Homyl-Torque-Noise-Brushless-Controller/dp/B07F8B4B9Y/ref=mp_s_a_1_13?ie=UTF8&qid=1546804493&sr=8-13&pi=AC_SX236_SY340_FMwebp_QL65&keywords=dc+brushless+motor+24v] | |||
=Links= | |||
*[[Cordless Drill Construction Set]] | |||
Latest revision as of 15:38, 28 February 2019
Intro
- Brushless motor has electronics tronic commutation istead of brushes. It is more efficient and longer life than brushed.
- It is also simpler to build per see, as the complexity goes into the controller
- Lithium ion + brushless motor are state of art - [1]
BLDC Motor Controller
- 65x40 mm size, 300W, 24V, $20 - [2]
Batteries
- NiCd batteries are less environmentally friendly chemistry
- But Lithium is a scarce resource
- Comparisons n of bats - [3]
Geared Motor, not BLDC
- 300 rpm - [4]
Brushless (BLDC)
- 12/24 - 3000 RPM - [5]