3D Prints Collection

3D Prints Collection

Monday, 27 October 2014

Biro-pipette

I am in the process of manufacturing a fully functional, accurate, pipette which uses the mechanism from a biro pen. I have been working with Open Source designs created by Tom Baden, Centre for Integrative Neuroscience (CIN) University of Tübingen, Germany, which are part of a "Free and Open Source Software and Hardware (FOSS/FOSH) for capacity building in education and research" project.

The most difficult component so far has been the main body of the pipette where the adhesion with the bed has failed and print fell over. 


Three failed prints (LH) and the success (Far RH Horizontal))

I solved this issue by increasing the print temperature, to then instantly fall foul to another problem. My G-code (the CNC commands) generator software (Cura) was offsetting some of the layers, ruining the print. I have been to date unable to fix this software issue, but got around the problem by printing the design on its side. Although this required support structures, and I am not happy with the print quality, It was successful and with a little machining up the component will function perfectly.

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