Internal and External Dimension Test

This is an ABS shrink test.

Each of the internal dimension test STLs are a 10mm tall strip with 10 holes of increasing size (1mm increase). The provided STLs go from 1 to 10mm, 11 to 20mm, 21 to 30mm, 31 to 40mm, and 41 to 50mm.

The external dimension test STL is a 10mm thick piece with dimensions from 2mm to 30mm by 2mm steps. Each step is 4mm to accommodate the width of caliper for measurement.

My conclusion from doing this is that with current slicers, the smaller than internal feature, the more shrinkage there. However, shrinkage of external features is roughly constant at an almost negligible 0.013% with my particular setup.

To negate the effects of shrinkage, the results suggest that I should scale my holes using the excel table at the CAD stage and scale my models by +0.013% at the slicing stage.

If you would like a different size or have any other questions, just let me know. If you have SolidWorks and know how to use design tables, you could generate the sizes y