X, Y, Z default scaling
Hi, I have just received a Prusa Core One printer and it appears to be working quite well.
One little thing though, is that it is printing things a touch small and I wondered if there was a way of setting the default x, y, z scaling for the printer ?
Printing a 25mm x 25mmx10mm block produces one with a size of 24.86mm x 24.86mm x 9.93mm. For some of my parts they need to be a bit more accurate.
I can scale in prusa-slicer by setting the scaling to 100.7, 100.7, 100.7 (All axes seem equally out) and the part comes out almost spot on, size wise.
Is there a way I can set these scaling factors in the printer itself ?
Your basic unit of accuracy is half an extrusion width, for a 0.4mm nozzle the default is 0.45mm; you are well within this. The next factor is thermal contraction as the plastic cools; This is often filament specific and can even vary according to the direction of lay of the extrusions in the print. The Shrinkage Compensation factors in Filaments > Advanced are intended to address it but it's often better kept as a gain in the original CAD.
Cheerio,
RE: X, Y, Z default scaling
Thanks for the reply.
Well I have tried using both the supplied Prusa Galaxy Black PLA and eSUN ABS+ to make a simple box and both come out at the same size. I would have thought the shrinkage of the PLA would have been a fair bit less than the ABS ?
I note the default settings for the Compensation factors in Filaments is 0% for both of these Filaments. I will try changing these then.
I would have thought the shrinkage of the PLA would have been a fair bit less than the ABS ?
It's never that simple 🙁
Shrinkage across a parallel group of extrusions of either filament may be negligible whilst along the same group it may differ. Whenever possible the slicer will cross extrusions on alternate layers to reduce the effect but part geometry does not always permit it.
Cheerio,