Hi!
Been 3d printing for 10 months or so, everything has been working fine so far.
However, ran into some problems the other day and need to consult this forum to hopefully get an answer.
Got a roll of eSun White Matte PLA, printed really nice and smooth and everything looked really great.
But, when I started to assemble parts they didn’t fit well.
Took some measurements with a caliper and noticed that wall thickness was way to big, walls that were supposed to be 1.5 mm was around 1.64-1.76mm.
Created a simple box to verify the issue, was supposed to be 50x50 (inside) with 1.5 thick walls.
The result was the same, the thick walls made the inner dimension to small, approx 49.76 and the outside that should be 53 mm was approx. 53.13mm.
Still looked really great.
What is the correct way to calibrate this?
Tried x-y hole compensation and x-y contour compensation and could get better results but it doesn’t feel right, what if I printed a single wall, there’s no hole or contour to correct.
Should I calibrate extrusion?
Also doesn’t feel right since the print looks so solid and smooth.
Grateful for any help or comments.
Maybe you should take a look at the flow calibration: https://teachingtechyt.github.io/calibration.html#flow
The easiest way is switching from Bambu Studio to Orca Slicer. It is exactly the same but has some really nice additional features, e.g. generators for various calibrations.
Thanks,
Will try that but my understanding from flow calibration is that it is more related to surface appearence and my surface looks like the perfect end product of examples of before and after.
Will still try though.
Thanks, will try the flow calibration in Orca (have Orca since a number of months) eventhough I have my doubts, see my above reply to printin3d.
Flow calibration is another name for extrusion multiplier and that describes it better. It defines how much filament will be pushed trough the nozzle. If it to less, the lines will be to thin. Is it to much, the lines will be to thick. You’re right, with the right flow calibration the top and bottom surfaces looks better, but also the walls will have the right width.
Just now printed a box with 0.42mm wall width in spiral vase and wall thickness was spot on, only difference was that i printed it in Orca.
Will try the other testbox with 1.5 mm walls in Orca and se how that comes out.
(checked Flow rate in both Bambu S and Orca, both had 0.98 flow rate for Bambu lab Matte PLA)
Testbox with 1.5 wall thickness actually came out fine (1.48mm) this time (using Orca which I did not do originally)
Had one thought/question, if I have 0.42 mm as outer wall thickness and 0.45 as inner (default in Bambu S for 0.4 nozzle) and set 2 wall loops, can the slicer adjust for the difference from the added thicknesses (which do not add upp to 1.5) and get 1.5mm or do you need to create inner and outer walls with infill instead of wall loops?
If you want more precise walls, select “Arachne” as Wall generator, because “…the Arachne engine produces walls with variable extrusion width”. Normally Arachne can produce more precise results, but not anytime.
Thanks, didn’t know that.
Going forward with my original project I will run it in Orca, perhaps there’s some other setting than the flow rate that made the difference, I see that both has Classic wall generator. Don’t remember how many wall loops I used from the beginning in bambustudio if that can be a factor.