Mini Drill Motor
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Parts
18V 555 motor - [1]- Chuck only, $10 on Amazon - [2]
- Coupler for motor - [3]
- 1 mm mill bits - 1/8" shank - [4]
- https://www.amazon.com/gp/product/B073TXGGKX/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
- $15 with chuck - [5]
- 1/8" is 3.175 or 3.2 mm
- Mini drill press, 3D printed, using above motor - [6]
- Hand-pump drill - [7]
- 2.3 mm shaft version, 5V 1A, $11 - [8]
- 2.3 mm drill bits are available
- 555 motor - $24 - 12-36v - [9]
Examples
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555 spindle-less (not additional support bearings) motor can be used as a mill for education, though not production. Not only that - he makes a working Arduino.
<html><iframe width="560" height="315" src="https://www.youtube.com/embed/YkMgsRTXpyg" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
Application with Spindle
- See John Log for spindle made with a small motor.