# Proper Grounding; How have you grounded your frame?

**URL:** https://forum.onefinitycnc.com/t/proper-grounding-how-have-you-grounded-your-frame/12331
**Category:** Spindle/VFD (Aftermarket/Unsupported)
**Created:** [April 8, 2022, 1:19pm UTC](https://forum.onefinitycnc.com/t/proper-grounding-how-have-you-grounded-your-frame/12331 "2022-04-08T13:19:13Z")
**Posts on this page:** 1
**Showing post:** 20

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### Author: ![wang3922](https://avatars.discourse-cdn.com/v4/letter/w/898d66/32.png) [@wang3922](https://forum.onefinitycnc.com/u/wang3922)
#### Post date: [October 11, 2022, 5:08pm UTC](https://forum.onefinitycnc.com/t/proper-grounding-how-have-you-grounded-your-frame/12331/20 "2022-10-11T17:08:23Z")

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Thanks Aiph5u!

I’ve since purchased a bus bar and some copper grounding strap. I mounted the bar inside the cabinet and connected it directly to the ground in my garage’s electrical panel. I then grounded the rear two Y-axis feet, controller enclosure, and the shielding going to my spindle (on the VFD side) using separate grounding straps (star). Before I mounted the bus bar/straps today, the shielding was connected to the same terminal as my spindle ground at the VFD. It’s now going straight to the bus bar.

So I guess I have three grounding unknowns:

1. Should I ground the other end of the shielding (spindle end) to one of the top bolts of the spindle or not connect it to anything like it is now?
2. Should I wrap a wire spiraling around the outside of my dust collection hose/separator and run it to ground? What about the vacuum itself (it isn’t pictured, but it’s in the same cabinet)?
3. How do I ground the VFD? The two screws visible at the bottom of the VFD pic don’t have any continuity to ground or to each other…

I haven’t fired it up yet since I installed the bus bar.

 ![IMG_3544](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/4/4702c32330836785d530de69ff19a991f7291ce9.jpeg)

 ![IMG_3550](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/5/57dda2635df2038a047eb2be4165334242896822.jpeg)

 ![IMG_3558](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/d/8/d817f6fc98faca9fa1a8deac7b948ded926c365b.jpeg)

 ![IMG_3559](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/a/8/a8d7344dbe6edb2e9f701f1e919569d0fa4dd4e4.jpeg)

 ![IMG_3560](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/2X/c/c709aba9c984bc8abe2c69d2d4041de9045b776e.jpeg)

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