Printed objects are too large in all three axes
Hi everyone,
I have done a very fine tune to X, Y, Z and Extruder so that a 25mm command moves no more than 25.02mm and no less than 24.98mm. I am trying to get an object drawn in Sketchup printed, but the dimensions of the base - the critical part - come out at 101.7% of the size in the design, and will not fit into my project
I am using Slic3r to slice it and the object is recognized as the correct dimensions. Specifically, the base is a simple rectangle of 54mm X 129.3mm.
When I print it, the result is 54.96mm X 131.59mm. I tried scaling it to 98.22%, but forgot that the parts on top of the base would scale as well - so that won't solve the problem.
I have tried print speed changes, extrusion multiplier and other things that looked promising. Always the same result.
Next I downloaded the xyzCalibrationCube and printed it. the result:
X: 20.74
Y: 20.63
Z: 20.62
Which is right arount 103% of the expected dimensions
Would someone please provide some suggestions of what to look at, and/or some things to try?
Thanks!
- a -
RE: Printed objects are too large in all three axes
Hello, there are different way to explore, the easier is the coefficient extrusion of your filament that could need to be reduced if it occurs only for this one.
Or if the problem always exists for any print any filament and is always the same and proportional to the size, adjust printer steppers motor parameter (number of steps for 1 mm for example) with M92+M500 gcode.
If I read you well you already have done this fine tuning, so try to reduce the coef extrusion.
MK3S & Fusion 360
RE: Printed objects are too large in all three axes
Thanks, Flo
Yeah, I've done the motor step adjustment to precision; used a dial indicator and made three or four passes on each axis. My Prusa has a screw drive upgrade and moves very well.
I've done two objects with this filament with same distortion. I will try one different object and a different filament before I change stuff to make sure.
BTW, I'm using Slic3r and wonder if the Coefficient extrusion is called Extrusion Multiplier there. If not, I could use some direction on how to play with this setting.
Thanks, again for your time and help!