[image0 - 2026-08-21T135759.300] Hello, I’ve had this cnc for about 10 months, and I am noticing rust on the bottom of the spindle and black spots on the inside of the spindle. How can I go about cleaning this and preventing this in the future? I did start to use nickel anti seize just a few month…

Talked with our engineer… The super soft OOOO steel wool is a good way to clean it. For protection I’d guess that collet care stuff is essentially in some way this: open prime modal Amazon.com: Permatex 77134 Nickel Anti-Seize Lubricant, 0.5 oz Tube | Pack of 2 : Automotive …

I’m pinging engineering for you to get an answer.

What is with the dinged up finish…is that how it came? It looks like it has been abused. I’ve replaced 20 year old wheel bearings that look cleaner than that thing.

It is very humid here in Tennessee so I wipe this stuff: ColletCare Spindle Care on every exposed piece of metal I can. If something begins to show surface rust, I’ll put a few drops on the rust and either rub it with 0000 steel wool, or use a brass brush on my Dremel. The ColletCare simultaneous…

My brand new AV40S has started to show a little surface rust also, so it got a generous wipe-down of Collet Care . .

I will note that with any spindle lubricant or anti-seize, make sure you get the lube where it’s needed (spindle, tapers, outside of collet) and NOT where it is not wanted (router bit shaft, inside bore of collets). If you lube the bit’s shaft, it is more likely to get pulled out while cutting. My…

Thanks, that would be a nasty surprise.

It was. It ruined a wedding present.

Maybe Avid needs to offer a branded “swear jar” you put a dollar in every time you say a bad word around your machine. Use the money for upgrades, tools, etc.

Rust on Spindle AV40s

General Chat

greg.obj August 27, 2026, 7:39pm 12

@FireNWater That colletcare stuff is great, even in bone-dry Colorado I was getting a little bit of rust. The owner replied here when I was asking a similar question: ER32 Collet+Nut Damage - #8 by TDA

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Rust on Spindle AV40s

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