First layer quality? May 07, 2014 08:29AM |
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Re: First layer quality? May 07, 2014 09:16AM |
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Re: First layer quality? May 07, 2014 10:04AM |
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Re: First layer quality? May 07, 2014 10:18AM |
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Re: First layer quality? May 07, 2014 10:40AM |
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Zonzo
it's better if you can write the axis direction on the picture
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dmould
Does it occur at more or less the same place on every print? It looks to me like a couple of irregularities on the bed - perhaps air bubbles, creases or overlaps in the Kapton tape? Setting the Z zero point a tiny bit higher (0.05mm) might improve it, but also consider using the wet method of applying tape without any bubbles or overlaps, or using one of the other bed preparation methods that do not use tape.
A less likely possibility is a bit of water contamination caused by not storing the filament in a sealed bag with silica gel - there will be similar defects in different places on other layers if that is the cause.
Dave
(#106)
Re: First layer quality? May 07, 2014 04:38PM |
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Re: First layer quality? May 08, 2014 02:58AM |
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Re: First layer quality? May 08, 2014 03:48AM |
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3D-ES
Some things I could try:
- Rub with some other cloth.
- Clean the bed with acetone.
- Support the PTE tube / wires.
- Using a different PLA brand.
- Printing ABS (don't want to...)
- Add silica gel to my storage.
- Play with the nozzle airflow.
Re: First layer quality? May 09, 2014 03:13AM |
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Re: First layer quality? May 09, 2014 04:03AM |
Registered: 10 years ago Posts: 327 |
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onno
I had similar issues as well, where prints got blisters without any hint as to why. Once I mounted the aluminium Xrib (thanks Davek0974!), and changed to 5mm thick glass, they were gone. As I did both changes in one go I can't tell which one made these blisters go, but I can for sure recommend the aluminium Xrib, it's one of the best upgrades to my Ormerod. Together with firmware and sensor upgrades my printer reached a fire-and-forget point in printing, where before I had to stay around for the first layer to finish.
Looking at the picture supplied, it looks like your nozzle is to high at the bottom left side, and to low at the top right/center of the print, as filament seems to build up in the nozzle and come out in small blobs
Re: First layer quality? May 09, 2014 04:53AM |
Registered: 10 years ago Posts: 1,230 |
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Pointy
.. it seems the vertical profile is not at 90 degrees to the bed.. It will be interesting to see if it makes a difference once I square it all up...
Re: First layer quality? May 09, 2014 04:14PM |
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Re: First layer quality? May 09, 2014 04:35PM |
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Re: First layer quality? May 10, 2014 03:57AM |
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Re: First layer quality? May 11, 2014 12:12PM |
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Re: First layer quality? May 12, 2014 04:19AM |
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Re: First layer quality? May 13, 2014 10:00PM |
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Re: First layer quality? May 14, 2014 04:21AM |
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