# All your 80mm Spindle questions in THIS thread

**URL:** <https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590>\
**Category:** Uncategorized\
**Created:** [January 5, 2021, 9:08pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590 "2021-01-05T21:08:59Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\
**Post date:** [January 5, 2021, 9:08pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/1 "2021-01-05T21:08:59Z")

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6/4/25 update

All our machines are available with 80mm mounts from the factory. These match perfectly with our Spindle kit by redline: [https://www.onefinitycnc.com/shop/category/spindles?srsltid=AfmBOop5Fx-WZ-p66HaOjAEs9-j7DU\_JoFLskSdpMpk3d-SAQbOjmNiu](https://www.onefinitycnc.com/shop/category/spindles?srsltid=AfmBOop5Fx-WZ-p66HaOjAEs9-j7DU_JoFLskSdpMpk3d-SAQbOjmNiu)

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**Author:** ![gad5264](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/gad5264/32/701_2.png) [@gad5264](https://forum.onefinitycnc.com/u/gad5264)\
**Post date:** [January 5, 2021, 9:56pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/2 "2021-01-05T21:56:46Z")

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Thanks for the update Onefinity

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**Author:** ![ben](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/ben/32/1298_2.png) [@ben](https://forum.onefinitycnc.com/u/ben)\
**Post date:** [January 5, 2021, 11:02pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/3 "2021-01-05T23:02:13Z")

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Personally I’d be most interested in using a Mafell FM800. They label is a “milling motor.”  
It’s only marginally more expensive than the Makita but I have a host of Mafell tools and have always found them reliable (although, I’ve never had problems with Makita either).  
It’s still air cooled so noise is probably as high as the Makita, and it cannot be started by the controller. It’s just greater familiarity with Mafell than with Makita.

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**Author:** ![Dragon29](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/dragon29/32/1436_2.png) [@Dragon29](https://forum.onefinitycnc.com/u/Dragon29)\
**Post date:** [January 12, 2021, 8:12pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/4 "2021-01-12T20:12:21Z")

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I’m glad to see this is high on the priority list. This can’t come out soon enough. Thank you!!

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**Author:** ![Rubicon14](https://avatars.discourse-cdn.com/v4/letter/r/9fc348/32.png) [@Rubicon14](https://forum.onefinitycnc.com/u/Rubicon14)\
**Post date:** [January 28, 2021, 3:21pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/5 "2021-01-28T15:21:38Z")

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So lets say I AM really good at milling metal. Would I be able to buy an additional 65mm spindle mount to modify and if so how much?

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 18, 2021, 7:15am UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/6 "2021-02-18T07:15:06Z")

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Onefinity,

Will your 80mm mount be available as a field upgrade for existing machines? With it in Beta testing, I’m wondering if it would be advisable to wait to order a machine.

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**Author:** ![BeerMedic522](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/beermedic522/32/1094_2.png) [@BeerMedic522](https://forum.onefinitycnc.com/u/BeerMedic522)\
**Post date:** [February 19, 2021, 3:39am UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/7 "2021-02-19T03:39:08Z")

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I emailed them this week asking about the mount. The reply I got stated that they were close to finalizing a design but still a couple of months out as far as going into production, and then whatever the production lag would be.

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 19, 2021, 5:46am UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/8 "2021-02-19T05:46:44Z")

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I emailed them this question and got a response that it would be either a complete Z axis switch out or a replacement of the mount which requires a lot of work for the user. (Their words)

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**Author:** ![jgruppuso](https://avatars.discourse-cdn.com/v4/letter/j/45deac/32.png) [@jgruppuso](https://forum.onefinitycnc.com/u/jgruppuso)\
**Post date:** [February 22, 2021, 6:39pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/9 "2021-02-22T18:39:56Z")

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Hopefully when it comes out, it won’t be too pricey

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 22, 2021, 7:51pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/10 "2021-02-22T19:51:15Z")

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Given the time lag from Beta testing to product on this larger motor mount, I’m wondering if they have encountered any issues with size of the stepper motors or the motor drivers. Hopefully, their frame is rigid enough for the added weight.

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**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\
**Post date:** [February 22, 2021, 8:12pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/11 "2021-02-22T20:12:53Z")

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There is a forum member who has made and installed his own 3D printed mount - planning to have it machined in aluminum - and is using it successfully with his 80mm spindle. So far he is pleased with the way it is working.

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 22, 2021, 8:34pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/12 "2021-02-22T20:34:20Z")

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Did he upgrade motors? Motor drivers? Controller board entirely? Did he beef-up the chassis? Glides?

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 22, 2021, 8:35pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/13 "2021-02-22T20:35:18Z")

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Also, does he need to slow the machine to compensate for the added weight?

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**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\
**Post date:** [February 22, 2021, 11:10pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/14 "2021-02-22T23:10:52Z")

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No changes to hardware other than the printed prototype has more material that fully extends to the full size of the linear bearings. As far as how he uses it, he is still experimenting with how much he can ‘push it’, and has not cut aluminum yet. He has experimented with wood, plastic, and brass up to this point but he has only been using it - and the newer version - for a week or so. Looks promising though, but we will need to be comfortable taking the z axis system apart to install it.

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**Author:** ![jgruppuso](https://avatars.discourse-cdn.com/v4/letter/j/45deac/32.png) [@jgruppuso](https://forum.onefinitycnc.com/u/jgruppuso)\
**Post date:** [February 23, 2021, 3:07pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/15 "2021-02-23T15:07:46Z")

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Who is it? where can we see their rig?

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**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\
**Post date:** [February 23, 2021, 3:26pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/16 "2021-02-23T15:26:38Z")

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@Hrubeskyr - follow “80mm spindle mount”

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**Author:** ![Hrubeskyr](https://avatars.discourse-cdn.com/v4/letter/h/eb9ed0/32.png) [@Hrubeskyr](https://forum.onefinitycnc.com/u/Hrubeskyr)\
**Post date:** [February 23, 2021, 9:01pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/17 "2021-02-23T21:01:32Z")

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I am currently down with a bad controller, lost hdmi output from  
The raspberry pii3 1f has been great with support on it just waiting for it in the mail. So far I havnt seen any issues arising with the heavier spindle, but I havnt been able to push the machine to my liking yet. Havnt pulled trigger on alum mount from machine shop yet as I would like to try the 3D printed one out a bit more. But everything seems promising. It is a decent chore to get the z axis tore apart but anyone with medium level of mechanical experience should be able to with a few common hand tools. More importantly is pressing the linear bearings in straight with an arbor press. I purchased new ones so I left the originals in the 65mm mount. Working on acquiring a ball screw and lead screw to be able to swap out if failures occur on the spindle/vfd or mount. Fallow my post on 80mm spindle mount for further updates.

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**Author:** ![Jbass](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Jbass](https://forum.onefinitycnc.com/u/Jbass)\
**Post date:** [February 23, 2021, 10:39pm UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/18 "2021-02-23T22:39:05Z")

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I’m curious. Instead of tearing the Z-axis part, did you consider just replacing it? Seems it would have been much easier to mount it on the flat X-axis plate, and you could have used flat linear rails to help reduce moment of inertia by keeping the spindle closer to the X-axis. Or am I missing something here?

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**Author:** ![Hrubeskyr](https://avatars.discourse-cdn.com/v4/letter/h/eb9ed0/32.png) [@Hrubeskyr](https://forum.onefinitycnc.com/u/Hrubeskyr)\
**Post date:** [February 25, 2021, 3:18am UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/19 "2021-02-25T03:18:57Z")

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I looked into many different ways to accomplish what I wanted to. I felt this took the least amount of investment. And I could readily produce a 3D printed prototype with everything I had there. The mount that comes with the spindle is huge.

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**Author:** ![Hrubeskyr](https://avatars.discourse-cdn.com/v4/letter/h/eb9ed0/32.png) [@Hrubeskyr](https://forum.onefinitycnc.com/u/Hrubeskyr)\
**Post date:** [February 25, 2021, 3:24am UTC](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590/20 "2021-02-25T03:24:13Z")

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You can’t get the spindle any  
Closer than what I mounted as it almost  
Hits the stepper motor for z axis, the way 1f designed with the makita height of router it doesn’t interfere. But height of spindle is almost twice of router

[Next page](https://forum.onefinitycnc.com/t/all-your-80mm-spindle-questions-in-this-thread/2590.md?page=2)
