I’m not a newby, Been printing on my CR-10S for months now and I’ve produced many great items, both from web designs and from my own designs created in SolidWorks. Now here’s my problem:
I am trying to make a simple box 161mm on a side. Using SolidWorks I lay out the box (I’ve been using SW for years, have no problem there).
Then I slice with Cura 3.4.1 as I’ve been doing. The printed box comes out about 7mm too small. So I went back to basics and printed the 20mm calibration cube </www.thingiverse.com/thing:214260> and it comes out exactly right. it seems the slicer and printer are OK. Next I laid out my own 20mm cube and it printed exactly right. So I try the box again, same problem, it is too small. So I went back to SW and using the same box I reduced it to a 161mm rod 3mm by 3mm. IT CAME OUT RIGHT, exactly 161mm.
So what is going on here? SW makes the right size test rod, made from the same box, but the box is undersize about 7mm.
Ideas are needed