Laboratory overhead stirrer for M8 thread rod
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Assembly of half moon stirrer that connects to a metric M8 thread. Fits through 29/32 glass joint.
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Model information
- Source
- Printables
- Category
- Chemistry & Biology
- License
- Creative Commons — Attribution — Noncommercial
This is a version of a classic stirrer used in chemical laboratory for stirring inside flasks with narrow opening, in this case 29/32 glass joint. The half moon is tiltable which makes it fit throu the opening and by touching the bottom of the flask, the stirrer rotates by 90°. The assembly consists of connector to a 8mm metric thread and the half moon itself. They are joined together by a diamond shaped key and hole.
It is compatible with commercially available PTFE half moon stirrers.
Print the connector with the thread facing up. The diamond shape connection will probably require a little bit of sanding to make a perfect fit.
Tested it with PETG but for mixing corrosive substances, better to choose different materials like PP.