Fan Setting Torture Test

This is a simple pair of objects with 45-degree overhangs. Conventional wisdom tells us that it should be easy to print cleanly. However, because the overhangs are very narrow and layer printing time is moderately short, layer cooling problems can surface quickly. As a result, this will help you fine-tune your active cooling strategies.

Because the parts interlock, your first test is whether the pieces slide apart easily. There's a 0.5mm tolerance, so a well-tuned printer should do fine. More importantly, the interlocking pieces test whether your fan provides cooling for partially obscured print sections. If the inner overhangs look worse than the outer, consider finding a better omnidirectional fan shroud.

As a bonus, the finished print can be surprisingly fun to play with, as the interlocking parts can be rotated into multiple stylish orientations.

For best results, use a line width of 0.5 so that the 1mm-width overhangs will print without gaps.

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