20x20x20 calibration with a twist

thingiverse

This is a twist on the standard 20 mm calibration cube. The base is a 20 mm x 20 mm x 10 mm solid block. In the middle of the block is a 10 mm diameter cylindrical hole that goes straight through. That's where the two pegs come in. The cylinder with the number 3 on top is 9.7 mm in diameter. And the cylinder with the number 2 on top is 9.8 mm in diameter. Ideally, both should fit into that 10 mm diameter hole. On top of the block, there is a 4.5 mm thin wall frame. This thin wall continues up for 10 mm. The entire height of the block is 20 mm high. The idea is this tests a number of your printer's capabilities in one small print. Instructions I printed this on my Craftbot with Slic3r. 0.2mm layer height 100% first layer height 2 vertical shell perimeters 3 top/bottom shells 20% honeycomb infill rectlinear top/bottom fill pattern default extrusion widths, except first layer 100% 210C extruder for cheap Chinese gray PLA / 60C bed