Machsupport Forum

Tangent Corner => Tangent Corner => Topic started by: Tweakie.CNC on July 06, 2009, 09:15:21 AM

Title: CNC fire hazzard.
Post by: Tweakie.CNC on July 06, 2009, 09:15:21 AM

Just look and see what happened when this Z axis failed and plunged the plastic bodied spindle into the work and stalled the spindle.
Perhaps the lesson is to make sure the correctly rated fuse or circuit trip is always used for the spindle when machines are left operating unattended.

http://www.flickr.com/photos/29506322@N08/sets/72157620853267251/

Tweakie.

Title: Re: CNC fire hazzard.
Post by: Dan13 on July 06, 2009, 09:59:51 AM

Hi Tweakie,

It's said looking at these pictures... :( Your machine has been seriously damaged and the spindle is scrapped :( :(

Was it a Mach fault?

Hope you get it fixed soon...

Daniel

Title: Re: CNC fire hazzard.
Post by: Tweakie.CNC on July 07, 2009, 01:38:41 AM

Hi Daniel,

It wasn't my machine, fortunately.
It appears that it was a mechanical fault when the leadscrew nut broke free from it's mounting and allowed the Z axis to drop.

Tweakie.

Title: Re: CNC fire hazzard.
Post by: BluePinnacle on August 29, 2009, 02:17:54 PM

Oh, misery :(

I've got my bases covered, my mill came with an overload cutout on the spindle contactor. Triggering this estops the whole thing and it slams to a stop with no power to spindle or drives. Shame this one didn't have such an arrangement.

Title: Re: CNC fire hazzard.
Post by: Chaoticone on August 29, 2009, 02:28:01 PM

 :(

Brett