OK but I did not read it as you EXPLICITLY required a FREE version, I guess it could be inferred though, I missed that.I can use Freecad to import .dat airfoil files and scale, extrude, loft etc. the problem I have is if I want to cut an experimental shape on my cnc hotwire cutter, the ’free’ software that generates xyuz gcode requites a .dat file, I can generate dxf files of my shape but not .dat. Clearly there is paid software out ther that will do it but I was asking if anyone had knowledge of ‘freeware’. Because of the exchange rate, what appears to be cheap to the rest of the world is around double the cost here in OZ. A French free program Jedicut can cut dxf files If only someone could tell me how to get it to do that.
I am pretty sure I used to have something like that some time ago, but I have searched through all my directories and nothing comes up, but because I cannot remember what its name is that is probably why a search cannot find it.
I have had a bit of a search online and cannot find one either.
I did find a DAT TO DXF FREEWARE ONE in my directories, but that is not what you want.
AIR 2 DXF
Converts any .dat airfoil to .dxf
By Pere Casellas