How many times have you been about to hit your 3D printer door, or has it happened to you before? This warning signal is both simple and effective, preventing damage to your 3D printer glass door and even to yourself and your family. Accidents are most often caused by inattention and so I found helpful to create this warning signal. My hope is that this simple project I created will be useful to you.

Open glass door warning sign

Display case wall for small items

Pillar Snape

Dobby keychain

Nativity scene pillar

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