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Author Topic: New CNC Router Start up Problem  (Read 13552 times)

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Offline kolias

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Re: New CNC Router Start up Problem
« Reply #50 on: February 16, 2011, 07:51:59 AM »
I have a light knocking sound on the X axis and ONLY when she travels in the Positive Direction. If you watch my video above and turn the volume up you will hear it well.

I have checked all mechanical parts on this axis and cant find anything wrong. Anyway if I had anything wrong you would hear the knocking sound in both directions.

Is it possible the sound may come out from the motor?

Any ideas where to look?
Nicolas

Offline Hood

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Re: New CNC Router Start up Problem
« Reply #51 on: February 16, 2011, 08:14:17 AM »
Hard to say where the problem is but I would say more likely mechanical as its not constant. Could be bearing related in that it being one direction only thus the screw is moving slightly. Check the coupling and see if you can see and rubbing between the two halves.
Try and locate where the noise is coming from using a mechanics stethoscope if you can get one, if not then a long screwdriver, just make sure you keep any loose clothing away from rotating screws etc when checking..
Hood

Offline kolias

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Re: New CNC Router Start up Problem
« Reply #52 on: February 16, 2011, 09:26:48 AM »
Thanks Hood, I will give it a try
Nicolas

Offline kolias

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Re: New CNC Router Start up Problem
« Reply #53 on: February 22, 2011, 03:36:25 PM »
The knocking sound from the X axis was the backlash nut which was not aligned properly.

I'm still working to fine tune the alignment but the knock has decreased at least by half and soon it will be gone completely
Nicolas

Offline Hood

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Re: New CNC Router Start up Problem
« Reply #54 on: February 22, 2011, 03:50:27 PM »
Glad to hear it , or rather glad to hear you are not hearing it ;D
Hood

Offline Tweakie.CNC

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Re: New CNC Router Start up Problem
« Reply #55 on: February 23, 2011, 06:52:13 AM »
Just watched your video Nicolas - excellent work my friend.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.