🧲 Magnetic Stirrer – Manual & Drill-Driven | 3D Printable Lab Mixer

This is a 3D-printed magnetic stirrer designed for chemical lab use, combining simplicity, versatility, and functionality. It features two modes of operation:

🧩 Required Parts:

Printed parts (STL files included): Base Housing1  Housing2  Big bevel gear Small bevel gear Spur gear Magnet gear Shaft for big bevel gear Drill adapter Crank Pins (x6) Logo badge (optional decorative part)
Non-printed components:    13. Round neodymium magnets (x2) –Ø20mm T:3mm	You can source them from a local store, or find compatible ones here: 👉 Bambu Lab EU Store – Round Magnet

Note: This magnetic stirrer requires a separate stir bar, similar to those used in commercial magnetic stirrers. The stir bar is placed inside the container with the liquid and rotates to mix the solution when the device is operating.

🧰 Assembly

The design is easy to assemble . You only need glue to attach the logo to Housing1 and doesn’t require glue or screws – just slide and pin the parts together. It’s a great functional print for makers, educators, or chemistry hobbyists.

🎥 A complete assembly tutorial video is included for reference:

🧪 Material Recommendations

Since this is a chemical lab tool, it's important to select a printing material based on the type of liquids you plan to stir:

• 🟢 PLA – Suitable for non-corrosive or neutral liquids. Easy to print, but limited chemical resistance.
• 🟡 ABS – A better choice for mildly acidic environments, offering improved durability and resistance.
• 🟠 PP (Polypropylene) – Highly recommended if you're working with stronger acids or harsh chemicals, thanks to its excellent chemical resistance.

📌 Always verify chemical compatibility with your specific use case to ensure safety and durability.