I haven't used openscax, but have had mixed results with PyCAM.

For CAD I've been using SolveSpace with nice results.  It's a little limited 
(no helical sweeps and can't import geometry) but I is the only stable open 
source parametric tool I've found.  It can also export G-code, but you still 
need to put a rapper around it.

N. Christopher Perry

On Feb 21, 2013, at 13:45, Sebastian Kuzminsky <[email protected]> wrote:

> On 02/21/2013 11:41 AM, Sebastian Kuzminsky wrote:
>> I've used FreeCAD to make drawings for machining before.  Export as SVG,
>> import the SVG into PyCAM, and get gcode out of PyCAM to feed to
>> LinuxCNC on my mill.  That toolchain is not without its wrinkles and
>> warts, but it can make good parts.
> 
> I should have said: SVG for 2d stuff, STL for 3d stuff.  FreeCAD and 
> PyCAM handle both.
> 
> 
> -- 
> Sebastian Kuzminsky
> 
> 
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