Honeycomb infill: first layer displacement
December 24, 2013 01:39PM
Hi All,

I use Slic3r most times with honeycomb infill, after first 3 solid layers.

However, recently I start slicing without the first solid layers. (Zero bottom) And my observation is that the first layer is offset from all next layers.
So the first layer honeycomb is nice, than the secons is somewhere 1/3 displaced and all others fit nicely on the second.

I did not notice this before as I uerd solid bottom layers before.

Is this actual as it should be ? Or is there a parameter that I misuse or forget ?

Thomas


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Re: Honeycomb infill: first layer displacement
December 24, 2013 03:41PM
i just started to do the same thing, my idea is for some fan guards and maybe a air filter holder. would be nice not to have to pick it clean after.


[mike-mack.blogspot.com]
Re: Honeycomb infill: first layer displacement
December 24, 2013 04:23PM
So,
you experience the same issue ?
Did you solve it ?

Thomas


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Re: Honeycomb infill: first layer displacement
December 24, 2013 04:49PM
No not yet. Im in the same bucket like you


[mike-mack.blogspot.com]
Re: Honeycomb infill: first layer displacement
December 24, 2013 11:23PM
Is your object straight? (like a tube or box?) The infill will follow the contour of a shape so if your object moves X,Y from layer to layer the infill will follow. You could also just make the shape in your 3D software but I know that's not as simple a solution.
Re: Honeycomb infill: first layer displacement
December 24, 2013 11:27PM
on mine, when i print with no top or bottom layers, the first layer of the hex pattern is both not the same infil percent and its also not lined up.

you can see it in this file. takes a little thinking to get them to fit in the file size limits.

Edited 1 time(s). Last edit at 12/24/2013 11:39PM by dissidence.


[mike-mack.blogspot.com]
Attachments:
open | download - 40x40x5box7.gcode (305.7 KB)
Re: Honeycomb infill: first layer displacement
December 25, 2013 01:52AM
Quote
tmorris9
Is your object straight? (like a tube or box?) The infill will follow the contour of a shape so if your object moves X,Y from layer to layer the infill will follow. You could also just make the shape in your 3D software but I know that's not as simple a solution.

I think I don't understand, or you're wrong :-)

any object that I give honeycomb infill with at least one (1) solid layer on the bottom, will align the honeycombs up to the top, whatever outline the object has.
However with zero solid on bottom layers, only the first layer will difference. Also when first layers are even circles.

Thomas


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Re: Honeycomb infill: first layer displacement
December 25, 2013 06:04PM
Well I just created a simple cylinder and the honeycomb looks to me to be aligned top to bottom.
Attachments:
open | download - Screen shot 2013-12-25 at 2.54.19 PM.jpg (106 KB)
open | download - Screen shot 2013-12-25 at 2.54.07 PM.jpg (110.9 KB)
Re: Honeycomb infill: first layer displacement
December 25, 2013 06:10PM
Here is a much closer look at just the first few layers of the cylinder object.
Attachments:
open | download - Screen shot 2013-12-25 at 3.06.00 PM.jpg (91 KB)
Re: Honeycomb infill: first layer displacement
December 25, 2013 06:17PM
Maybe if you upload your object and an image of your results it might make determining the cause easier.
Re: Honeycomb infill: first layer displacement
December 25, 2013 06:17PM
Quote
tmorris9
Here is a much closer look at just the first few layers of the cylinder object.

looks good, however....... did you print it ?

give it a go for 3 layers and take the picture again ?


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Re: Honeycomb infill: first layer displacement
December 25, 2013 06:28PM
On the gcode I posted you can see it if you put it in a gcode viewer.

in the picture you can see more than one hex pattern that is printed.

Edited 1 time(s). Last edit at 12/25/2013 07:00PM by dissidence.


[mike-mack.blogspot.com]
Attachments:
open | download - gcode.JPG (189 KB)
Re: Honeycomb infill: first layer displacement
December 25, 2013 09:54PM
I would take a guess and say you are using a different layer height and extrusion width for the first layer(s) (maybe the default settings) which results in requiring a different spacing to achieve the same density. Or in other words if the extrusions are larger for the first layer it will space them apart further to equal the requested infill density.


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Re: Honeycomb infill: first layer displacement
December 26, 2013 11:11PM
OK I printed 7 layers (.35mmm nozzle).

Looks aligned to me. The first layer is of course a tiny bit larger due to being squished flat but that's all.

This is the cylinder I showed above.

Edited 1 time(s). Last edit at 12/26/2013 11:15PM by tmorris9.
Attachments:
open | download - Hex.jpg (173.4 KB)
Re: Honeycomb infill: first layer displacement
December 26, 2013 11:27PM
i will have to print and check it out, but i think sublime might be onto something there,

what are your first layer settings set at tmorris9.?


[mike-mack.blogspot.com]
Re: Honeycomb infill: first layer displacement
December 26, 2013 11:44PM
I just took my everyday setting (normally solid fill) and set top & bottom "solid layers" to 0 then I set infill to 10% and honeycomb.

I don't even know how to set a different layer height for bottom layer. Now under advance (layer width) I am using all -0- (default).
Re: Honeycomb infill: first layer displacement
December 26, 2013 11:52PM
in layers and perimeters, its the second option.

i remembered reading sometime that its good to make your first layer a little taller, i wonder if that is still true.?

i never adjusted layer width, that should be default still.


[mike-mack.blogspot.com]
Re: Honeycomb infill: first layer displacement
January 01, 2014 03:51PM
This is my displacement photo.
i have no special instructions for the first layer exempt that is should not be solid...


This happens at every object that I print with zero solid bottom layers
Thomas

Edited 1 time(s). Last edit at 01/01/2014 03:51PM by Replace.


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Attachments:
open | download - foto-2.JPG (96.8 KB)
Re: Honeycomb infill: first layer displacement
January 01, 2014 04:25PM
That infill is also smaller than the rest. There must be something different. How about uploading your .ini file for slic3r (the saved prefs) also which version of slic3r are you using?
Re: Honeycomb infill: first layer displacement
January 03, 2014 04:53AM
Ok,
I need some help here.

I run Slic3r from a Macbook, where I installed it on the desktop.
I found some ini files as attached....

Thomas

Edited 1 time(s). Last edit at 01/03/2014 09:41AM by Replace.


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Attachments:
open | download - _materials.ini (548 bytes)
open | download - _printers.ini (1.6 KB)
open | download - _styles.ini (314 bytes)
open | download - _supports.ini (217 bytes)
Re: Honeycomb infill: first layer displacement
January 03, 2014 10:44AM
@Replace, as Sublime said the different spacing on first layer depends on first layer extrusion width, which is different (fatter) for first layer by default. You can just set it in the "Advanced" section in "Print Settings". If you set it to 0 (auto) it will be equal to the one used for the other layers.
Re: Honeycomb infill: first layer displacement
January 04, 2014 12:00AM
@Sound:

Ok, I will try that,
but my first layer sais: 100% isn't that the same as zero ?


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Re: Honeycomb infill: first layer displacement
January 05, 2014 11:22AM
Hi Guys,

thanks for the advice, it was really the 100% first layer width

I did a test with the original parameter (top) and with that one to zero (bottom) . Now infill aligned :-)

Thomas

Edited 1 time(s). Last edit at 01/05/2014 11:22AM by Replace.


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
Attachments:
open | download - infilfirstL.JPG (116.2 KB)
Re: Honeycomb infill: first layer displacement
January 05, 2014 11:35AM
100% in first layer width means layerwidth=layerheight which probably was not what you wanted.
Hold mouseover to see helpfunction of input fields.
Re: Honeycomb infill: first layer displacement
January 05, 2014 11:39AM
On a similar thought thou. I wonder what the best way to add a honey come part to a part of a print is. So that I could make a part more complex and in 1 piece not 2 or more.


[mike-mack.blogspot.com]
Re: Honeycomb infill: first layer displacement
January 05, 2014 05:59PM
My first layers, when solid, also are smoother now.
They somehow often clogged a bit, probably due to to much etrusion.

Thomas


www.3daybreaker.blogspot.com

Orca V4.4 rebuild to Ramps with Mk8 and E3D, as well as a Rostock Delta Mini and an OLO in backorder :-)
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