# The Linear Motor

**URL:** <https://forum.cadlibrary.org/t/the-linear-motor/33>\
**Category:** Engineering\
**Created:** [September 26, 2023, 3:54pm UTC](https://forum.cadlibrary.org/t/the-linear-motor/33 "2023-09-26T15:54:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JoWatts](https://avatars.discourse-cdn.com/v4/letter/j/779978/32.png) [@JoWatts](https://forum.cadlibrary.org/u/JoWatts)\
**Post date:** [September 26, 2023, 3:54pm UTC](https://forum.cadlibrary.org/t/the-linear-motor/33/1 "2023-09-26T15:54:58Z")

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This strand is for conversations about the Linear Motor project.

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**Author:** ![jhmaloney](https://avatars.discourse-cdn.com/v4/letter/j/278dde/32.png) [@jhmaloney](https://forum.cadlibrary.org/u/jhmaloney)\
**Post date:** [September 27, 2023, 11:39am UTC](https://forum.cadlibrary.org/t/the-linear-motor/33/2 "2023-09-27T11:39:14Z")

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For those thinking about driving linear motors from a microcontroller, it may help to know that the DC coil resistance is about 50 ohms, based on measuring the resistance of the two linear motors I have with a multimeter. You’ll need to use a MOSFET switch or an H-bridge to control them, but it doesn’t need handle a huge amount of current. At 5v, a coil needs only 100 mA, which even a low-cost H-Bridge or motor controller board should handle with ease.