Mailbox Notification Flag
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Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Public Domain
This model raises a flag when the mailbox door is opened. After you retrieve your mail from the mailbox, simply flip the flag down to reset it. It requires a length of 1.8 mm stainless rod. I used bicycle spokes because that's what I had on hand. There are 3 parts: the spring/flag base (medium sized part with 2 bumps), the flag (largest , square piece), and the door arm (Skinny piece with 1 bump). Print with PETG, install on your mailbox with 3M automotive trim tape. It helps to put some CA on the PETG print before the tape. You will also need 2 small eyescrews to go into the underside of the mailbox post. Installation video is at yourube: DIY: Mailbox notification flag!