In Week 5 we started our introduction to bioprinting by manually writing gcode to draw our intitials with a pen using a Prusa 3d printer. We then worked with Ryan Hoover’s Xylinus tools for Grasshopper (a visual scripting plug-in for Rhino) where we learned to write a script the could produce gcode directly in grasshopper, which also allows much more manual control than programs like Slic3r and Cura – something that will be useful when creating gcode for bioprinting. In the afternoon we got an overview on using a pneumatically driven syringe for bioprinting which we will be using in the coming weeks.

 

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The basic gcode commands we worked with.
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We drew on an x,y grid then translated it into gcode.
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Sarah’s handwritten gcode which she then transcribed into a text editor.

 

 

 

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Gcode drawing previewed and then sent to the Prusa printer in Pronterface.
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Finished drawing from the Prusa.

 

video of the Prusa drawing the manually written gcode.

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Ryan’s script using Xylinus tools in Grasshoppper to produce gcode from geometry directly in Rhino.

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Emma testing the air pressure on the pneumatically driven syringe on Ryan’s bioprinter.
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Testing out some water in the syringe to get started.

 

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The syringe with the fine needle tip inserted into it’s mount on the printer.

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