DXF export for use with laser cutter?

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DXF export for use with laser cutter?

Christopher Granade
I'm a relative newbie to OpenSCAD, and am just starting to play around
with the 2D subsystem. In particlar, I've been trying to use the DXF
export functionality to produce files suitable for use with a laser
cutter. Unfortunately, the DXF files produced seem to not have
continuous curves, but rather many disconnected line segments, which
makes it hard to program power and other such settings on the laser
cutter. Is there some way to export primitives like circles and
squares as joined paths rather than line segments? Thanks!
Sincerely,
Chris Granade

--
[hidden email]
http://www.cgranade.com/

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Re: DXF export for use with laser cutter?

miloh
On Tue, Feb 14, 2012 at 6:08 AM, Christopher Granade
<[hidden email]> wrote:

> I'm a relative newbie to OpenSCAD, and am just starting to play around
> with the 2D subsystem. In particlar, I've been trying to use the DXF
> export functionality to produce files suitable for use with a laser
> cutter. Unfortunately, the DXF files produced seem to not have
> continuous curves, but rather many disconnected line segments, which
> makes it hard to program power and other such settings on the laser
> cutter. Is there some way to export primitives like circles and
> squares as joined paths rather than line segments? Thanks!
> Sincerely,
> Chris Granade
>
> --


the following linked Inkscape --> openSCAD tutorial applies to
anything else that uses DXF as well, like laser cutters or vinyl, cnc,
etc.
http://repraprip.blogspot.com/2011/05/inkscape-to-openscad-dxf-tutorial.html


the second part of the recipe is getting inkscape to output multiple
path DXF files (it doesn't do this by default)  for color coding cut
directions, etc.
I enabled this by using Bob Cook multi layer dxf export plugin for inkscape

http://www.bobcookdev.com/inkscape/inkscape-dxf.html


last time I checked, these links were still leading to good content.
HTH

-rma

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Re: DXF export for use with laser cutter?

Christopher Granade
Thanks for pointing out those tutorials. Those are quite useful for
importing DXF files into OpenSCAD, but I'm looking to go the other
way: exporting projections and cuts from OpenSCAD to DXF. I can do so
successfully, except that the output is broken into small unjoined
line segments, rather than a joined path. I'm not good enough with SVG
or DXF either one to know how to fix that problem after exporting, I'm
afraid.

Anyway, thanks for the help!


On Tue, Feb 14, 2012 at 12:49, miloh <[hidden email]> wrote:

> On Tue, Feb 14, 2012 at 6:08 AM, Christopher Granade
> <[hidden email]> wrote:
>> I'm a relative newbie to OpenSCAD, and am just starting to play around
>> with the 2D subsystem. In particlar, I've been trying to use the DXF
>> export functionality to produce files suitable for use with a laser
>> cutter. Unfortunately, the DXF files produced seem to not have
>> continuous curves, but rather many disconnected line segments, which
>> makes it hard to program power and other such settings on the laser
>> cutter. Is there some way to export primitives like circles and
>> squares as joined paths rather than line segments? Thanks!
>> Sincerely,
>> Chris Granade
>>
>> --
>
>
> the following linked Inkscape --> openSCAD tutorial applies to
> anything else that uses DXF as well, like laser cutters or vinyl, cnc,
> etc.
> http://repraprip.blogspot.com/2011/05/inkscape-to-openscad-dxf-tutorial.html
>
>
> the second part of the recipe is getting inkscape to output multiple
> path DXF files (it doesn't do this by default)  for color coding cut
> directions, etc.
> I enabled this by using Bob Cook multi layer dxf export plugin for inkscape
>
> http://www.bobcookdev.com/inkscape/inkscape-dxf.html
>
>
> last time I checked, these links were still leading to good content.
> HTH
>
> -rma

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Re: DXF export for use with laser cutter?

kintel
Administrator
In reply to this post by Christopher Granade
On Feb 14, 2012, at 15:08 PM, Christopher Granade wrote:

> I'm a relative newbie to OpenSCAD, and am just starting to play around
> with the 2D subsystem. In particlar, I've been trying to use the DXF
> export functionality to produce files suitable for use with a laser
> cutter.

Could you describe in more detail what you're doing and which software you're using?

It's quite common to export line-segment-based DXF for laser cutting and the laser cutter preprocessing software should take care of that for you. I've been using OpenSCAD->DXF->CorelDraw->Epilog for this purpose.

 -Marius