How to Make a Dremel Tool with Flexible Shaft at Home

（Materials required）配件表
Flexible Shaft for Grinder Tool 电磨软轴https://goo.gl/uk3JhC
775 motor 775马达https://goo.gl/qeypgW
775 motor bracket 775马达支架https://goo.gl/CtWiCa
3.17mm-5mm Aluminum Alloy Coupling 联轴器 https://goo.gl/hKUNH1
PWM 10A PWM DC Motor Speed Controller 调速器https://goo.gl/u7gF86
5.5 DC female jack 5.5DC插座
24V5A Power Adapter 调压电源https://goo.gl/Ez59q7

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