Tttugeman
Posts: 7
Joined: Sun Jul 26, 2015 5:41 am

End/ start of layer

Hi,
i am experiencing problems with print quality at the end/start of layers. I have tried numerous ooze control setting and cant figure it out, attatched is a photo of this problem
Attachments
image.png
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KiLLiN-TiMe
Posts: 19
Joined: Thu Sep 24, 2015 4:19 pm

Re: End/ start of layer

Someone correct me if I am wrong, but I believe you want to go to the "layer" tab and choose "Use random start points".
That should spread the start points around so they are not all lined up and wont stand out so much.

HTH
KT
Tttugeman
Posts: 7
Joined: Sun Jul 26, 2015 5:41 am

Re: End/ start of layer

Hi, i do not want to spread the marks out i want to get rid of them.
My settings are
Retraction distance 4.2
Extra restart -0.2
Coast at end .08
Extrusion multiplier 0.97
PLA

i have tried editting the settings but it doesnt make a difference
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dkightley
Posts: 2405
Joined: Tue Mar 10, 2015 4:09 pm

Re: End/ start of layer

Not sure if you've seen this....but take a look at the section in the quality troubleshooting guide on blobs and zits. It should help you to understand what's going on...and give you clues on how to get rid of them!

https://www.simplify3d.com/support/prin ... s-and-zits
Doug Kightley
Volunteer at the National Tramway Museum http://www.tramway.co.uk
Railway modeller and webmaster at http://www.talkingtgauge.net
Tttugeman
Posts: 7
Joined: Sun Jul 26, 2015 5:41 am

Re: End/ start of layer

I have looked at that already, i have even tried my coasting at end to 8mm and blobs are still occurring?
horst.w
Posts: 861
Joined: Fri Oct 17, 2014 5:00 pm

Re: End/ start of layer

Multiplier for PLA best +/- 0.90 when the real filament thickness is exactly given in OTHERS
Layer thickness? Nozzle width? Extrusion width? Retraction speed? Retraction lift? Nozzle temperature? Print speed?
Coast at end 0.08 are not 8 mm (8.00 mm)

The viscosity of molten PLA is very low (in contrast to ABS) and the fault may also be caused by the filament and / or mechanical problems.

It will be very helpfull when you attache the factory-file.

H.
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dkightley
Posts: 2405
Joined: Tue Mar 10, 2015 4:09 pm

Re: End/ start of layer

I have looked at that already, i have even tried my coasting at end to 8mm and blobs are still occurring?
A second suggestion to allow you to get to the bottom of your blobs. Have a read of jimc 's first reply in this thread: viewtopic.php?f=9&t=3629 Particularly the bit about the difference between blobs at the end of a layer and blobs at the beginning of a layer....and the different means of addressing. Are your blobs from the start or the end of the layer?? Identify that first....then work on the cure.

Details of your factory file would also be useful for anyone trying to remotely resolve your issue for you.
Doug Kightley
Volunteer at the National Tramway Museum http://www.tramway.co.uk
Railway modeller and webmaster at http://www.talkingtgauge.net

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