4mm x 2mm Magnet Setter Tool & Storage
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Accurate 4x2mm magnet placement tool. Solves polarity and positioning issues for hobbyists and functional 3D prints.
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- Printables
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- Other Ideas
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- Creative Commons — Attribution — Noncommercial — Share Alike
The Precise Solution for Small-Scale Magnets
If you frequently integrate small 4mm X 2mm magnets into your 3D prints for grid systems, modular parts, or electronics enclosures; you know the struggle:
- Magnets sticking to tools and fingers, making accurate placement impossible.
- Inconsistent depth when seating the magnets, leading to poor component fit.
- The dreaded reverse polarity mistake, requiring you to tear apart and re-glue your prints.
- Slow, messy gluing when you have dozens of magnets to place accurately.
This 4mm x 2mm Magnet Holder / Setter is the simple, three-part printed tool designed to solve all these issues, ensuring quick and accurate magnet placement every time.
Key Features & Benefits:
- Precision Placement: The slide mechanism allows you to push the magnet into a hole with perfect control, ensuring uniform depth.
- Reliable Polarity: Print two setters in contrasting colors (e.g., Red and Blue) and label them North/South. This eliminates polarity errors, saving you time and material.
- Easy Assembly: Requires only the printed parts and a single 4mm x 2mm magnet to assemble the tool itself.
Assembly Instructions:
- Prep the Slide: Glue a 4mm x 2mm magnet to the Slide component.
- Insert: Place the magnet end of the Slide into the end of the Tube.
- Secure: Glue the Top Cover onto the Tube end to secure the mechanism.

Print Settings:
- Material: PLA, PETG
- Supports: Not Required (No Supports Needed!)
- Infill: 15% - 20%
- Print Time: The parts print quickly, often in under 2 hours.
Support My Designs!
If this tool saves you time and frustration, please consider supporting my work. Your support helps me keep designing practical, high-quality tools for the 3D printing community.
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