# Spindle Router Upgrade

**URL:** <https://forum.onefinitycnc.com/t/spindle-router-upgrade/22824>\
**Category:** Spindle/VFD (Aftermarket/Unsupported)\
**Created:** [October 17, 2023, 11:25am UTC](https://forum.onefinitycnc.com/t/spindle-router-upgrade/22824 "2023-10-17T11:25:38Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [October 17, 2023, 12:30pm UTC](https://forum.onefinitycnc.com/t/spindle-router-upgrade/22824/2 "2023-10-17T12:30:06Z")

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Hey Alfie,

> [@Alf](#):
>
> so my question is how easy / fiddly is the process to complete

congratulations, then you found the right forum, your question was already answered thoroughly.

Note that since a spindle is an [induction motor](https://en.wikipedia.org/wiki/Induction_motor) that only runs on [three-phase electricity](https://en.wikipedia.org/wiki/Three-phase_electric_power), you always need a [VFD](https://en.wikipedia.org/wiki/Variable-frequency_drive), which is an [inverter](https://en.wikipedia.org/wiki/Power_inverter) that produces tree-phase electricity with a variable frequency. So if you use the search function, be sure to search for VFD also.

Welcome to the forum!

PS: [Here is a post](https://forum.onefinitycnc.com/t/a-question-on-spindles/20634/4) with a lot of links on the topic to start with

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