PLA shrinkage.
I've started learning Fusion 3D. I created a bearing holder. I then loaded the .stl to Cura as it won't work with Slic3r. Had to reduce the file to 30% to fit the bed. Fired up the Prusa and the result came out nicely. I guess I'm asking how a slicer works in regard to writing a hole of a specific diameter. Polygon stuff I don't understand? The next part I create will likely have a specific purpose. I'd like to have the holes accurate. Is there a shrinkage tolerance using PLA I should be aware of? I'm guessing from test prints roughly 5%. Is this a good gauge for more experienced printers out there? I printed a hole 5.00mm and it finally fit a 4.75 bolt. If I printed a hole to fit a 20mm bolt would the 5% rule still apply? Thanks
Re: PLA shrinkage.
See http://www.thingiverse.com/thing:2050876 - I don't think PLA shrinks that much, you may have to calibrate your steps per mm.
My parts usually come out with an error of less than 0.2mm - but this is mostly with smaller parts, the bigger parts I printed only needed to fit each other (and they do really well).
- Gab