Odd printing artifact? (Page 2 of 2)

Dave forgive as it is hard to remember what printer everyone has if they don't add it to their signature but i thought you had a Makerbot? So why are you using slicer software that was hacked and butchered by monoprice for use with their printers? The IIP Cura is not for general use and is really considered proprietry to monoprice.

You should use and get used to using the real Cure software. Older versions like the 2 series are a little easier to work with. The 15 series they are at now assumes knowledge with slicers as far as I can tell.

For calibrating your machine as described by Heartless which is NECESSARY you will need to use a different slicer/host suite like RH. Cura only allows you to specify walls in mm of thickness, as opposed to other slicers that you specify number of shells which is what you need to confirm calibration. A shell, not a wall should be .48mm if your machine calibrated right.

As heartless stated it is rely better to use get ued to mm for 3 d printing. Not really that difficult.

I did  similar 20 mm cube test on my ultimate maker. the wll came out a bit thick  but tuneable no slicer errors  that is with the cura that comes with rh,

I looked at at the IIIP Cura and for the most part it is the Same as Cura just stripped/Dumbed down for ease of use I guess. Being Cura based it does not allow for a single shell but instead a wall of a desired width in mm. RH, S3D, Slicer and others allow for a single shell and that shell width is controlled by your filament thickness and your multiplier and should come out to be .48mm based on a .40 nozzle when calibrated correctly. So you will need to use one of the other slicers for proper calibration purposes.

You might can make Cura work by specifying the wall thickness as .48 and then tuning your flowrate to get that .48 versus your .58 thickness.

I use Cura and nozzle size is set by the user in the main machine setting. The filament diameter also needs to be set as well and is not 1.75 ever. Yes that tiny little bit makes a major difference in the prints and how the slicer sets flow volume.

Ok, I wasn't clear, the nozzle is the 0.4mm one that came with he printer.  The setting in IIIP Cura is [and always has been] set to 0.4mm.

That is the information i was looking for.

and carl - never say never.. it does not happen very often, but it does happen that the average does work out to 1.75 - I have a couple spools (out of roughly 50) that are set to 1.75 average diameter.

Then that would be the number you would use for filament diameter in your slicer and this will need to be confirmed and changed when needed on every spool you load.

Now the outer edges are kind of blobby.  Looks like over extruding a bit, I think.

That PDF is good.  Thank you.

I set up as shown in the picture, and measured how far the filament moved after extruding 100mm.

99.23mm
so if anything it's a little short.

In Machine settings in the IIIP Cura, the E steps is set to 415

In the start code, I have E steps at 417, from the previous time I checked this.

M501 returned this -
> M501
< echo:Stored settings retrieved
< echo:Steps per unit:
< echo:  M92 X80.04 Y80.04 Z400.48 E94.30
< echo:Maximum feedrates (mm/s):
< echo:  M203 X300.00 Y300.00 Z5.00 E25.00
< echo:Maximum Acceleration (mm/s2):
< echo:  M201 X3000 Y3000 Z100 E500
< echo:Acceleration: S=acceleration, T=retract acceleration
< echo:  M204 S800.00 T800.00
< echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)
< echo:  M205 S0.00 T0.00 B20000 X10.00 Z0.40 E1.00
< echo:Home offset (mm):
< echo:  M206 X0.00 Y0.00 Z-1.90
< echo:PID settings:
< echo:   M301 P9.12 I0.41 D50.98

So I send M92 E417 in the command window.
Re run the test...

I get 100.45mm

I set M92 E416

And measure 99mm.

Go back to 417, measure 100.37mm

oh, I was thinking it was integer only.  D'oh!

yes, you can, and should be using decimal places

and Carl, the formula is in that document i shared, as is the formula for calibrating the extrusion rate.