As much as I love the idea - as someone who both cycles as a primary
vehicle and has melted 10+kg of plastic in his printer over the last year -
this will not be a robust or safe idea in any available plastic. The
deposition of layers in the X-Y plane results in weakness in the Z plane,
highly susceptible to both shear and tensile loading. Think of it as
separate laminations which have a weakness in bonding between laminas.
I would suggest perhaps that idea of tubes and connectors aimed at the CNC
community. Homebrew hobby CNC machines are built for under $1000 or about
3x the cost of a decent printer. They are driven by the same gcode so you
can prototype on your printer and then make metal parts with the same code.
I'm currently working on such a CNC conversion at the moment.
philip hahn
On Mon, Aug 21, 2017 at 11:17 AM, Jürgen Mages <jmages@xxxxxx> wrote:
I think, it is about time to reanimate an idea, made by Dirk Bonné in
2011: The 3D-printing of a python frame. I guess, the printing technology
has advanced in a way, we can seriously start to work with it.
Thus I have set up a wiki page:
http://en.openbike.org/wiki/3D-Printing
Here we can gather all useful information and hopefully one day the first
prototype will be made.
Everybody interested is invited to contribute ...
Cheers,
Jürgen.
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