This is a follow up from a previous post about a possible Z issue

This is a follow up from a previous post about a possible Z issue causing what looks like layer separation. Now disregard the support issue with the one piece, i forgot to turn it on but even with that it does not effect the issue at hand. These parts are the same of course. The Smooth walled part was sliced in Cura and the issue part was sliced with Slic3r inside Repetier. If i would have not printed the one sliced in Cura i would still be looking for some mechanical problem when there is not one for the bad looking layers. I had tried to blame this on the infamous Solidoodle banding previously, that was unfounded. This is a great example of the difference in slicers.

Is your nozzle size setting correct? Slic3r isn’t set to a .35 nozzle while you are using .4 is it? It seems less like a Z issue and more like inconsistent extrusion.

Nozzle size is set to.4. I have tested this with half a dozen parts before this one and this type of part with a lot of vertical wall typically comes out better with Cura for me. If i have a part that has finger like uprights Slic3r will make a better part than Cura for me. I will continue to watch this and report back if i have more relevant findings.

Looks to me like a temperature or extruder problem. Also possible your hot end is slightly blocked. Have you tried raising the temp by 10 degrees?

Could be extruder problem but it makes me wonder why it prints great using Cura and then like this with Slic3r. I am printing at 205 which they say is 30 less than actual for a Solidoodle. I can’t confirm that, no laser thermometer at the moment.

Ah, I didn’t realise it was only slic3r. If so, try increasing the extrusion multiplier by 10% and see if that improves things.

Alright

My guess would be that the code produced by Cura is causing at least one of your axes to run slower, which avoids a problem that the slic3r settings don’t. Comparing different slicers is kinda apples-to-oranges because the configurations aren’t compatible, so it’s hard to be sure that there’s not something different there that’s making the difference.

How best to diagnose this in Slic3r ?

Here is some .1 prints using Cura

https://www.facebook.com/media/set/?set=a.645089878874771.1073741847.595124113871348&type=1

With my solidoodle, im printing at 185-190 and prints are coming out pretty nice. Have you tried lowering your temps?

When printing with ABS if i go down to 185 my extruder starts stripping on the filament. I have tighten the pressure tension and have it optimized now.

Or that slic3r is reversing the direction of some layers’ perimeters and what you’re seeing is your printers’ backlash