Use these boards to have a tactile feel to how much you need to oversize your holes in your design to obtain the desired “tightness”.

For example, with my printer, I need to oversize my hole by 0.4mm for a snug fit on circular parts and 0.8mm for a snug fit on square parts.

NOTE 1: The precision boards (Tolerance Board 0-1 and Tolerance Board 1-2) do not fit the A1mini, but the generalized board (Tolerance Board) does.

NOTE 2: The round peg and square peg have a diameter and width of 15mm.

NOTE 3: Tolerance Peg_Rounded Square has a 0.5mm fillet at the corners to reduce “bulging” during printing

“Tolerance Board” is for approximate fitment with tolerances of 0.0mm up to +1.2mm in intervals of 0.2mm.

“Tolerance Board 0-1” is for more precise fitment with tolerances of 0.0mm up to +1.0mm in intervals of 0.1mm.

“Tolerance  Board 1-2” is for more precise fitment with tolerances of +1.0mm up to +2.0mm in intervals of 0.1mm.