Battery Weld Cleaning Tip – 18650/21700
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🔧 Dremel Spot-Weld Cleaning Nozzle for 18650 & 21700 Cells
This 3D-printed attachment is designed for fast, controlled, and precise cleaning of spot-weld areas on common cylindrical battery cells such as 18650 and 21700. Perfect for DIY battery builders, repair technicians, and anyone assembling custom lithium-ion packs.
✨ Features
- ⚙️ Optimized for Dremel-style rotary tools – snug and secure fit
- 🔍 Precision cleaning geometry – ideal for removing nickel residue and weld marks
- 🔋 Sized for battery cells – designed specifically around 18 mm and 21 mm diameters
- 🧩 Strong and printable – works great in PLA, PETG, and ABS
- 💨 Improved control – helps keep the Dremel centered on the weld area
🛠️ Recommended Use
Attach the nozzle to your rotary tool and use a fine sanding drum or abrasive bit. Gently guide the tool along the weld points for smooth, clean battery terminals ready for re-welding or inspection.
⚠️ Safety note
Always work with unpowered / unassembled cells, wear eye protection, and avoid generating excessive heat near lithium-ion batteries.
❤️ Support the Creator
If you like this model and want to see more useful workshop tools, you can support me on Patreon.
Your support helps me create larger, more complete sets like this one and speeds up new releases.
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.








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