1 Topic by cujo3131

  • cujo3131
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  • Registered: 2013-08-31
  • Posts: 97

Topic: Rough prints... Help Please

Good evening folks....

Just wanted to stop in and ask for some info on rough prints...

I recently got my SD3 back up and running correctly... but am having some
issues with rough prints and wanted to share a couple pics and some
info and see if you guys could help me diagnose the issue...

First... I have included 2 images.  First, shows the outside walls of the project
I am printing... and you can see the rough corners of the walls.  Not nearly as smooth
a surface as I would expect.  Second, is a pic of my infill which looks kinda sloppy to me
as they are not nice and neat layers....

What I have done today....

1. Adjusted tension of belts (which now seem to be correct)
2. used lithium grease and lubed all rods and bearings... (had a intermittent squeak that was bothering me)
3. Flow rate adjustment  (did this, and my first box wall measured .52 and after adjust and another box print, I got .43 wall thickness)

Like wise I currently have these settings in Slic3r:

Speed:
perimeters: 75
small perimeters: 55
External perimeters: 60

and layer heights at: .2

so... what could be the issue here????  any suggestions????

Thanks for the help!

Matt

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2 Reply by grob

  • grob
  • grob
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  • From: Sydney, Australia
  • Registered: 2014-01-02
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Re: Rough prints... Help Please

I see slight underextrusion there, particularly between perimeters in picture 2. Have a read of this:
http://hydraraptor.blogspot.com/2011_03_01_archive.html

It is possible that your nozzle is 0.40mm diameter, not 0.35mm as the 0.42mm wall-thickness calibration procedure assumes (see here: http://www.soliforum.com/topic/4813). Check what you have, as if you do have a 0.40mm diameter nozzle you may be better off aiming for a higher wall thickness (0.48mm or more, again refer to nophead's blog above).

SD3. Mk2b + glass, heated enclosure, GT2 belts, direct drive y shaft, linear bearings, bowden-feed E3D v5 w/ 0.9° stepper
Smoothieboard via Octoprint on RPi