Plus or minus .010 is an amazing amount. Also, you mentioned another area
on the screw you saw .001 lost motion. This leads to a screw problem.
I would do what Jon Elson says as this sounds strange but I would expect to
find screw wear. If it was nut wear the backlash in all areas of the screw
On 04/12/2021 09:48 AM, Todd Zuercher wrote:
Those here who have had to deal with a worn out ball screw.
I'd dig into the works and examine everything. It does NOT
sound like simple wear.
The rotating nut likely runs in a pair of either
angular-contact bearings or tapered roller
bearings.
It would technically still have thrust bearings, no? But on the nut instead of
on the screw. I’m not sure this changes anything.
> On Apr 12, 2021, at 3:55 PM, Gene Heskett wrote:
>
> On Monday 12 April 2021 14:55:18 Ralph Stirling wrote:
>
>> Thrust bearings at the ball screw ends perhaps?
On Mon, 12 Apr 2021 at 21:57, Gene Heskett wrote:
>
> On Monday 12 April 2021 14:55:18 Ralph Stirling wrote:
>
> > Thrust bearings at the ball screw ends perhaps?
> You may want to read it again Ralph, the screw is fixed, with a rotating
> nut.
The nut rotates in bearings, however.
Personally
On Monday 12 April 2021 14:55:18 Ralph Stirling wrote:
> Thrust bearings at the ball screw ends perhaps?
>
You may want to read it again Ralph, the screw is fixed, with a rotating
nut.
I had one like that I built once. I think Todd is correct and the screw
needs to go to a rebuilder. With the
Could this be a worn thrust bearing instead? I had a similar behavior a few
years ago and that was the cause.
Leonardo Marsaglia
El lun., 12 abr. 2021 15:25, Todd Zuercher escribió:
> Those here who have had to deal with a worn out ball screw. How is this
> normally manifested. I have a
Thrust bearings at the ball screw ends perhaps?
-- Ralph
From: Todd Zuercher [to...@pgrahamdunn.com]
Sent: Monday, April 12, 2021 7:48 AM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] Worn Ball Screw?
CAUTION: This email originated from
On 4/12/21 9:48 AM, Todd Zuercher wrote:
Those here who have had to deal with a worn out ball screw. How is this normally manifested. I have a
machine that is only showing backlash under load. Is that normally how a worn out screw shows it's age?
I was expecting it to be normal loose
Those here who have had to deal with a worn out ball screw. How is this
normally manifested. I have a machine that is only showing backlash under
load. Is that normally how a worn out screw shows it's age? I was expecting
it to be normal loose backlash that you can measure. But this is
Nicely done. Makes mine look slow at only 4500mm/min.
Are your motors direct drive to the ball screws? What torque/rpm are the
motors rated at?
John
> -Original Message-
> From: andrew beck [mailto:andrewbeck0...@gmail.com]
> Sent: April-12-21 5:36 AM
> To: Enhanced Machine
hey guys just a video showing my new cnc retrofit
cheers
https://youtu.be/B42f9uG8Jmg
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