FPL - Fully Printable Lab - Part II: volumetric flask plugs
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Tons of flasks in your lab but not enough plugs? Here they are in NS 29/32, NS 24/29, NS 19/26, NS 14/23 .
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Volumetric flasks are essential for a lab and therefore looked after very well. But no one seems to care about the plugs and so there are often more flasks than plugs in a lab, especially a school lab.
Part II of the fully printable lab gives you the five most common plug sizes to print yourself the numbers you need. With around 0.50 € they are quite cheap to print (calculated based on PETG. TPU ist about 0.60 €).
I printed my plugs in PETG and TPU for better stability against chemicals. TPU seems to be the better choice since it seals the flasks, while PETG has some sealing issues due to the printed seams and need postprocessing.
If you need any additional plug sizes feel free to contact me. As always have fun and share and remix.
You are in need of a printable lab stand?
https://www.printables.com/de/model/789718-fpl-fully-printable-lab-part-i-lab-stand
Update 240622: Redesigned the plugs. The new ones are no longer designed with a smooth surface but with some ribs. I printed them in TPU with 0.12 layer height and they are tight without further processing. I will add additional sizes step by step with the new design.
Update 260821: Further imporvements for a better fit.