Prusa I3 first "print" - what am I doing wrong? May 23, 2015 04:10AM |
Registered: 9 years ago Posts: 82 |
Re: Prusa I3 first "print" - what am I doing wrong? May 23, 2015 07:31AM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 23, 2015 07:35AM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 23, 2015 12:27PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 23, 2015 01:50PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 23, 2015 11:20PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 24, 2015 01:31AM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 24, 2015 06:34PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 24, 2015 07:28PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 24, 2015 09:12PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 24, 2015 10:44PM |
Registered: 10 years ago Posts: 476 |
Quote
CraigMoberg
The sugar water worked! I used 10g sugar in 100ml water, dabbed it heavily with a tissue on the hot bed (100) and let it dry. I'm now the proud father of a 20mm hollow cube.
I'm not sure it worked VERY well though. At the end the cube was skewed a little relative to the perimeter, so there may have been some slippage, and the cube may have suffered some from that too. After the bed cooled, it lifted right off with no resistance.
One thing I notice is that the corners protrude a little. It's a nice effect, but not what's intended. And one corner is very jaggy, as if the width is increasing bottom to top.. It is 0.2 mm wider at the top than the bottom.
It looks like the bottom couple of layers shrunk in, and there too you can see evidence of skewing, maybe from the piece slipping on the bed. (The last picture is of the bottom.)
The sides are nice and flat and look filled in. But the top is gappy, and it forgot to finish the last corner -- or the filament pulled away when the nozzle retracted.
Does anything else jump out that could be fixed with some settings tweaks?
(Extruder temp 230, bed temp 100, layer height 0.3 at vegasloki's suggestion.)
[attachment 55268 cube01-800x600.JPG]
[attachment 55269 cube02-800x600.JPG]
[attachment 55270 cube03-800x600.JPG]
[attachment 55271 cube04-800x600.JPG]
[attachment 55273 cube06-800x600.JPG]
Re: Prusa I3 first "print" - what am I doing wrong? May 25, 2015 03:41AM |
Registered: 9 years ago Posts: 5,232 |
Re: Prusa I3 first "print" - what am I doing wrong? May 25, 2015 05:31AM |
Registered: 9 years ago Posts: 82 |
Quote
o_lampe
I´d reduce the nozzle height a bit until you see the ABS squashed down the surface a bit.
-Olaf
Re: Prusa I3 first "print" - what am I doing wrong? May 25, 2015 03:54PM |
Registered: 17 years ago Posts: 824 |
Re: Prusa I3 first "print" - what am I doing wrong? May 27, 2015 01:03AM |
Registered: 12 years ago Posts: 661 |
Quote
jcabrer
I've posted several times over the years on the topic of Printing on Glass. Here is a compilation.
It's all about temperature people. Adding anything to the glass, or sanding it, is just a crutch. The underlying problem not being addressed is one of the following.
Re: Prusa I3 first "print" - what am I doing wrong? May 27, 2015 01:28AM |
Registered: 12 years ago Posts: 661 |
Quote
CraigMoberg
So we have one vote for glue stick working well with ABS, and one vote for it not working well. It's tough being a newbie.
Re: Prusa I3 first "print" - what am I doing wrong? May 27, 2015 04:04AM |
Registered: 10 years ago Posts: 476 |
Re: Prusa I3 first "print" - what am I doing wrong? May 28, 2015 04:25PM |
Registered: 9 years ago Posts: 98 |
Re: Prusa I3 first "print" - what am I doing wrong? May 28, 2015 04:29PM |
Registered: 9 years ago Posts: 98 |
Quote
CraigMoberg
So we have one vote for glue stick working well with ABS, and one vote for it not working well. It's tough being a newbie.
Re: Prusa I3 first "print" - what am I doing wrong? May 28, 2015 06:04PM |
Registered: 9 years ago Posts: 125 |
Re: Prusa I3 first "print" - what am I doing wrong? May 28, 2015 08:25PM |
Registered: 9 years ago Posts: 82 |
Re: Prusa I3 first "print" - what am I doing wrong? May 28, 2015 09:03PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 30, 2015 09:43AM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 30, 2015 12:06PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 30, 2015 02:38PM |
Registered: 9 years ago Posts: 82 |
Quote
Laopa
The first layer cannot be 0.4
Quote
o_lampe
The 1st layer should not exceed 80% of nozzle diameter.
Quote
o_lampe
200% extrusion sounds way too much for me?
Quote
o_lampe
I have the nozzle slighty push the bed down at z-home.
Quote
Laopa
Or your speed is correct but not feed enough.
Re: Prusa I3 first "print" - what am I doing wrong? May 30, 2015 03:57PM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 30, 2015 07:03PM |
Registered: 9 years ago Posts: 82 |
Quote
o_lampe
raise z-steps or better reduce e-steps to fight against the accumulating scratch-error.
Quote
o_lampe
I don´t like the z-stop gadget, the endstop sticks out and is very exposed.
Re: Prusa I3 first "print" - what am I doing wrong? May 31, 2015 01:27AM |
Registered: 9 years ago Posts: 82 |
Re: Prusa I3 first "print" - what am I doing wrong? May 31, 2015 03:18AM |
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Re: Prusa I3 first "print" - what am I doing wrong? May 31, 2015 04:53AM |
Registered: 9 years ago Posts: 82 |
Quote
o_lampe
The z-steps are "written in stone"