1 Topic by atuor

  • atuor
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Topic: slic3r Profile ?

Did anyone manage to get a good slic3r profile for Solidoodle 2 that generates good GCode to print with Pronterface ?

Basically Pronterface with skeinforge give very good results out of the box (Solidoodle 4.2 'package'), except for 'raftless' printing of flat parts, where I'm still struggling, (altitude/heat?).

In fact the Repetier/slic3r pair I downloaded (0.82b linux version installed on Ubuntu 12.04 LTS) would be perfect, placing parts, scaling viewing, and especially generate GCode with support material which I'd really need, except that although it connects to my Solidoodle 2 (received in december so probably the latest firmware), but can't control, it says Machine Type : unknown in printer information and goes no further although I followed steps solidoodletips


So I'd like to use it to prepare parts and the print with Pronterface as it works fine, but the slic3r profiles found on blog and forum but it doesn't work fine, tried to tweak things but no sccess, it seems to 'over extrude' plastic and it looks ugly, holes are filled and it's all but smooth, if anyone was able to get nice smooth results (see pics 1 perfect with base skeinforge, others where aborted attempts with slic3r), I would appreciate, or good hints how I could tweak it well. I know I'm quite a newbie and still need to read a lot on forums, but some input would be appreciated :-)

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2 Reply by devilman2075

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Re: slic3r Profile ?

Your going to have to calibrate your extruder and your printer in general for each slicer.  Those stock settings only take you so far. each printer will act a little different. Using slicer with default extrusion multiplier was around 30 percent more than what I ended with after calibration.

3 Reply by atuor

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Re: slic3r Profile ?

So still wondering, I downloaded the .1 mm Profile , installed Repetier/slic3r and configured according to this profiles published by Solidoodle (which should work with the standard calibration Solidoodle 2 has  or at least I believe).

I downloaded item 33804 from Thingiverse, uploaded to Netfab for cleaning (don't know if this was necessary), and scaled it to 0.25 to get a 2.5 cm high knight.

With default Solidoodle Package (Pronterface+skeinforge) I printed it normally, .3mm (on Linux), and with Repetier/slic3r I used the .1mm profile and configuration options they published (on Windows, as for Linux,  Repetier won't work unless recompiling firmware).

Attached is a picture with the results, on the left, the Pronterface/skeinforge .3mm and on the right the Repetier/slic3r.
The results of the .1mm are very bad, although I used the published config. Can someone with experience and a sharp eye make a quick diagnostic ? What coul be wrong there ? Are the printers all so different that the results are unpredictable ? I also made anther test with a gear at .3mm and I also get bad results,  Feed? Temperature ? Speed ? If anyone has a good idea ;-)

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4 Reply by DePartedPrinter

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Re: slic3r Profile ?

atuor wrote:

So still wondering, I downloaded the .1 mm Profile , installed Repetier/slic3r and configured according to this profiles published by Solidoodle (which should work with the standard calibration Solidoodle 2 has  or at least I believe).

I downloaded item 33804 from Thingiverse, uploaded to Netfab for cleaning (don't know if this was necessary), and scaled it to 0.25 to get a 2.5 cm high knight.

With default Solidoodle Package (Pronterface+skeinforge) I printed it normally, .3mm (on Linux), and with Repetier/slic3r I used the .1mm profile and configuration options they published (on Windows, as for Linux,  Repetier won't work unless recompiling firmware).

Attached is a picture with the results, on the left, the Pronterface/skeinforge .3mm and on the right the Repetier/slic3r.
The results of the .1mm are very bad, although I used the published config. Can someone with experience and a sharp eye make a quick diagnostic ? What coul be wrong there ? Are the printers all so different that the results are unpredictable ? I also made anther test with a gear at .3mm and I also get bad results,  Feed? Temperature ? Speed ? If anyone has a good idea ;-)


Have you done the extruder and flow rate calibrations?  can be found here: http://wiki.solidoodle.com/solidoodle-1

also, with a small part printed at .1mm it will help to have a fan blowing on the print.  Look into fan mods.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

5 Reply by IanJohnson

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Re: slic3r Profile ?

Have you changed your Extrusion Multiplier since the print in the first post?  If not, you are still extruding too much plastic.  See this post for how to test your flow rate -

http://solidoodletips.wordpress.com/201 … flow-rate/

Also for that model you will need to make sure that cooling is turned on.  It will slow down the small layers so they have time to firm up before the next layer goes on top of it.

6 Reply by atuor

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Re: slic3r Profile ?

Thanks for these inputs, I've played around a bit with flow rates and will try these few advices and try to optimize a profile that works fine. I just didn't want to touch too much on printer calibration as it works quite well with Pronterface/skeinforge right now and don't want to mess up things. I'll post results when done ;-)

7 Reply by nickythegreek

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Re: slic3r Profile ?

If you just change the Flow Rate Multiplier in slic3r and do not do the firmware stuff, then your pronterface/skeinforge will remain exactly the same.

8 Reply by devilman2075

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Re: slic3r Profile ?

Keep in mind most printers over extrude from factory.  My extruder was pulling 127mm when prompted to pull 100. Even after that calibration,  extrusion multiplier ended up around .8

The calibrations will help tremendously.

9 Reply by atuor

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Re: slic3r Profile ?

noticed that not all settings were taken correctly, tried again and got much better results, but as it is a very small part, there wouls still be some tweaking, anyway, will compare the .3  profiles for Repetier with default software to get a better idea.

Considering the time it takes to print .1 mm I'll keep that for exceptional cases, and migrate to Repetier once I get an as good .3 profile as with Pronterface/skeinforge.

The .1 mm profile is a really good thing fot proof of concept though and it's a great job that has been done there ! And thanks a lot to all who gave that very valuable input.