Z resonance test print what do I check?

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rilewedge
Plasticator
Posts: 8
Joined: Tue Jan 06, 2015 4:35 pm

Z resonance test print what do I check?

Postby rilewedge » Fri Jan 23, 2015 10:10 am

I completed the assembled my MAX V2 on Monday. Trying to get it calibrated now.

Z resonance test print:
The print starts off nice and seems to sway a bit at 7 cm and again at 11 to 14 cm.
I did find my Z cheapskate had some friction and I pulled it apart and put it back together and the friction is gone but the Z resonance print is only marginally better. So whats the next place to look? X and Y towers seemed ok.

RZrun2.JPG

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Eaglezsoar
ULTIMATE 3D JEDDI
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Joined: Sun Apr 01, 2012 5:26 pm

Re: Z resonance test print what do I check?

Postby Eaglezsoar » Sat Jan 24, 2015 5:54 am

Where did you find a reference to a Z resonance test?

BenTheRighteous
Printmaster!
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Joined: Fri Nov 07, 2014 9:38 am

Re: Z resonance test print what do I check?

Postby BenTheRighteous » Sat Jan 24, 2015 11:32 am

The last person that had a problem like this had their hotend loose. When your machine is cool, see if you can make the nozzle wobble with your finger.
nitewatchman wrote:it was much cleaner and easier than killing a chicken on top of the printer.

rilewedge
Plasticator
Posts: 8
Joined: Tue Jan 06, 2015 4:35 pm

Re: Z resonance test print what do I check?

Postby rilewedge » Sat Jan 24, 2015 1:54 pm

I was not able to move the nozzle but I loosened and re-tightened it.
Trying the print again.

Any thoughts on where to look next if this does not fix the issue?

rilewedge
Plasticator
Posts: 8
Joined: Tue Jan 06, 2015 4:35 pm

Re: Z resonance test print what do I check?

Postby rilewedge » Sat Jan 24, 2015 3:07 pm

Run4b.JPG

Run4a.JPG


Looks like one side has straightened out but the other is still effected.
Z tower facing side is now close to straight but the X - Y facing sides are still effected by something.

rilewedge
Plasticator
Posts: 8
Joined: Tue Jan 06, 2015 4:35 pm

Re: Z resonance test print what do I check?

Postby rilewedge » Sat Jan 24, 2015 7:03 pm

Eaglezsoar wrote:Where did you find a reference to a Z resonance test?


How to Evaluate the 2015 Make: 3DP Test Probes
http://makezine.com/2014/11/07/how-to-e ... st-probes/

There is a link to download the test items.

https://www.youmagine.com/designs/make- ... geometries

RussD
Plasticator
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Joined: Mon Dec 22, 2014 10:24 pm

Re: Z resonance test print what do I check?

Postby RussD » Sun Feb 01, 2015 6:23 pm

I know it might take some time but I think you should watch the print and observe as it makes these deviations. Perhaps the fan shroud is catching on the model or the Bowden tube and cables are catching on something at greater z heights.
I had a similar shift when my print curled up above the extruder tip and the head slammed into the model...

Russ


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