FAST, EASY HORIZONTAL EXPANSION CALIBRATION

thingiverse

This is a small print intended to quickly and easily calibrate your "horizontal expansion" / "xy size compensation" value so that close fitting, or print-in-place objects, such as the favorite gear bearing: https://www.thingiverse.com/thing:53451 will print reliably. Target case: The pin should easily fit in to the hole such that its top is flush, or just slightly recessed. The two parts have matching "straight" and "tapered" sections. The "tapered" section slopes 0.10 mm inward (0.20 mm difference in diameter) over a length of 5 mm. So, theoretically, for every 1 mm that the top edge of the pin sits below the top edge of the hole, the horizontal expansion must be adjusted by 0.01 mm outward. If the top edge of the pin sits noticeably above the top edge of the top edge of the hole, then the horizontal expansion needs to be brought inward until the pin fits in easily. The print takes less than 15 minutes, even at a relatively slow speed so iterations can be accomplished quickly. The model orientations are such that mating surfaces of the tapered portions are both "non-overhanging", and so won't have overhang effects.