Polylines (only lines) might be seen as reliable but not idealĪnd likewise splines are a bit hit and miss all depended on the camįor a seemingly easy conversion splines>arcs, this is one option: When I used a polyline + arc dxf format the circle was just 4 arcsĪnd the design could be tweaked a lot easier by the cam operator if When converting from splines worked in the cam import process then that circle in my test file might have beenĪbout 150+ lines vs 750+ lines from 'hi res' polyline only.
#Autocad to cambam software
Eitherway, these splines are seeminglyĪlways exploded and then joined in the cam software for the toolpath. MOI Spline based dxf export would likely work as well. Straight out of drawing packages - I used export as dxf ACAD 2000 from Coreldraw. > On INTERMAC glass cnc systems it seemed to cope with dxf spline artwork How it struggles with the spline entities. Up or "auto path" function that explodes the splines and then joins them together for a 'cut path' showed > On flow waterjet and "workstation 1" with FLOWPATH software spline dxfs could be importedīut sometimes not without issues making them unworkable.sometimes the shapes was totally messed To use offsets or increase or change anything then polylines are simply > All polyline files can work 'fine' but if the cam operator needs Some ECAD software still has really limited dxf importers Lisp functions out there that might convert both lines and splines to lines+arcsīut I'm not using autocad nor interested to go back to it (once used as a file converter). Other commands can be used in autocad to get the desired polyline result Then a simple '2d circle' created in any software might become 750+ polylines. ** Saving in r12 seems to 'explode'' all splines to polylines BUT Software let's you draw lines as lines and curves/arcs as arcs (not beziers, splines etc). NEWER than r12 and its usually splines thats unless we presume your The geometry, precision or 'angle approximation' seems to always be bad. If you save out dxf OLDER than R12 from a drawing package or acad 'you might get lucky' as Chris indicated. Splines dxf export from moi or all drawing packagesĬan also work depends on the cam software. Michaels R12 export template can also be considered. > Moi native dxf polylines export allows enough control over precision If you use ACAD then "save as" dxf format R12 is a quick legacy trick to turnĪrcs or curves into lots of lines. Moi polylines or all polylines typically 'work' on all cam systems, Then use a high precision poly-line output or accept 'squared off curves' If you want to try and use polylines and the artwork has curves with lines If you don't care about best or being best friends with the CAM bodsĪnd/or the artwork is simple and needs no modification, then polylines are fine. > General consensus from yesterday: DXF > CAM Above: Polyline test file used and the result(s).
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