EmGi’s attractive magnet insertion tool is a finger-operated, 3D-printable aid for placing magnets in maker projects. Hackaday’s September 1, 2024 article describes a refined design with one embedded magnet, intended to make placement easier and reduce the chance of dislodging a magnet when lifting the tool away.
What the magnet insertion tool does
The tool uses an embedded magnet to help position another magnet in a project, such as a 3D-printed build. It addresses a familiar handling problem: loose magnets can snap together unexpectedly, shift or fly out of position, and become awkward to manage while applying glue.
Hackaday links to the designer’s Printables model and a demonstration video. Their current availability is not established, so check those links before planning a build: Hackaday’s article and linked resources.
Why the design changed
| Design iteration | Documented approach | Lifting and polarity |
|---|---|---|
| Earlier version | Used two magnets. | Hackaday reports that lifting the tool imperfectly could cause a magnet to fly out of position. |
| Refined version | Uses one embedded magnet. | The article describes it as the design used for the reported placement demonstration. A second tool was printed to handle the opposite polarity. |
The source describes this design change but does not provide a controlled comparison or quantified performance results. The practical takeaway is limited to the reported issue: the earlier arrangement could dislodge a placed magnet if the tool was not lifted cleanly.
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What the reported demonstration shows
Hackaday reports that EmGi used the refined tool to place an array of 64 magnets without glue, then printed a second tool for the opposite polarity. That is the designer’s demonstration as reported by Hackaday, not an independently tested benchmark or a guarantee that the tool will work the same way with every magnet, print, or project.
What to check before making one
The article does not state the required magnet dimensions or grade, print settings, or exact material list. Do not buy magnets based on an assumed size or type; first inspect the model files and confirm that the magnet dimensions and tool design match. If the model or demonstration links are unavailable, the article alone does not provide enough specifications to reproduce the tool reliably.
Rank #2
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Because it is described as printable, making the tool also requires access to a suitable 3D printer, but Hackaday does not endorse a particular printer or specify settings. The article does not establish that a finished tool is sold commercially.
Quick Recap
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What the source does not establish
- Whether the linked model or video is still available.
- Which magnet dimensions, grade, or print material to use.
- How the tool compares quantitatively with commercial tools or other magnet-placement methods.
- Whether the reported demonstration can be reproduced under different project conditions.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
