does anyone know how to convert corel to dxf autocad file?

[Graeme Harrold]

Just use the "Export" selection in the "File" menu.

In the box marked "save as type" select DXF Autocad in the drop down menu.

[Alan Drury]

Same reply as to Dave regarding Artcam, goto http://www.aidsoftware.co.uk and check out Bezarc.
Alan D

[David Rowland]

I spoke to Bezarc people today, took me ages to get through as Alan was chatting to him! 😉

In a nut shell their software can convert from a postscript related file to DXF format which includes good quality curves and so forth. To get good curves the tool seems to help quite well. I shall be learning more about it soon.

[Alan Drury]

Sorry Dave, good bloke is Jim and can give you chapter and verse regarding DXF.
Alan D

[Vijay Wadhwa]

Thank you guys :lol1:

[Alan Drury]

Spoke to Jim at aidsoftware regading dxf etc. and his oppinion is that some of the other programmes mentioned do not produce correct 3 point arcs suitable for routing, some may retain the arcs if they are already there but they will not convert beziers to arcs. As I understand it arcs will produce a continuous and smooth cut on the router where as lots of straight lines produce more of a laboured cut. I’m hoping Jim will come on and and give a difinitive answer to this. It seems it is not so easy to get a clean dxf with correct arcs for routing out of drawing programmes. For those interested in the Bezarc solution it can be found at http://www.aidsoftware.co.uk
Alan D

[Stephen Morriss]

The reason you have to convert the baziers into arcs or lines is that Gcode can only handle lines or arc moves.
In Gcode you can only create a constant radius arc, G02/G03 moves or a straight line G01 moves.
Baziers and splines can have an arc that is altering so this has to be converted into lots of tiny line or close fit arc moves, the arcs give a smother motion than steight lines but both are a compromise on the original spline and you usualy have an accuracy option to set the amount that the curves can deviate from the original spline or bazier.

That what I’ve always been told any way 🙂

Steve

[Alan Drury]

Hi Stephen, obviously there is more ‘behind the scenes’ stuff going on when we click cut. I’m a simple sign bloke when I click cut I have no idea what is actually going on, only that the plotter plots (hopefully)
Alan D