pieterbos / printbone Goto Github PK

The project does not have a way to retrieve the dependencies. Some can be retrieved with this code:

# download dependencies
if [ ! -e scad-utils ]; then
    git clone https://github.com/openscad/scad-utils.git
fi
if [ ! -e list-comprehension-demos ]; then
    git clone https://github.com/openscad/list-comprehension-demos.git
fi
if [ ! -e Curved_Pipe_Library_for_OpenSCAD/curvedPipe.scad ]; then
    mkdir -p Curved_Pipe_Library_for_OpenSCAD
    wget -O Curved_Pipe_Library_for_OpenSCAD/curvedPipe.scad \
        http://www.thingiverse.com/download:170713
fi

That leaves vector.scad, maths.scad and moreShapes.scad missing.

Hi,

I am trying 3D print a leadpipe for a Jinbao contrabass trombone in F. The bore is approximately 0.589" in the slide, so I would imagine a venturi for the leadpipe would be 0.522" or so. I edited https://github.com/pieterbos/PrintBone/blob/master/jinbao_leadpipe.scad to the following:
line 57 leadpipe_length=199; was changed to leadpipe_length=222.25);
and
line 73 shank="small"; was changed to shank="large";
and
line 67 leadpipe_venturi_radius=(10.7-0.8)/2; was changed to leadpipe_venturi_radius=13.26;
but, changing the venturi to 13.26 (0.522") had an unexpected change in size

Here's with the original venturi (10.7-0.8)/2

Here's with a 13.26 venturi

I am guessing that this value for venturi is not a measurement in millimeters exactly, but it is used in a calculation?

Best,
Jean Elbers