XY dimensions issue
Hello, I have recently started printing mechanical components and am having minor issues with the accuracy of the prints. Extraction parameters are correctly calibrated. Despite that the outer and inner dimensions in XY axes are on average 0.2mm too small. What can I do with this? Is the only solution to set XY compensation in PrusaSlicer?
Regards
Your errors are around half the diameter of the standard nozzle, you can't expect much better but:
If this is proportional to the dimension then you may just be seeing thermal contraction: is your printer laying down hot plastic accurately - which then contracts as it cools?
Address this with calibration of your original design.
There are other minor distortions, most often of curves, caused by triangulation and rational approximation when translating ideal dimensions to practical printer movements. Trial and error will usually find an optimal value in a couple of iterations.
And the usual advice applies when making dimensionally critical blanks, build slightly oversize and machine to fit.
Cheerio,
RE: XY dimensions issue
I agree with diem. In your top picture, it looks like you're about 0.5% off, which doesn't feel unreasonable. Here's an interesting article on this topic https://www.hubs.com/knowledge-base/dimensional-accuracy-3d-printed-parts/#fdm
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...