[Lab] Laser

[bentfork at gmail.com]

This is a sample of testing a laser at different cutting speeds and power
levels, and grey scales while in 'raster' mode.

http://suprdelux.com/laser/scan-card0002.jpg

It will show you the example pattern that I tend to use when experimenting
with a new material.

The wood cards are 3-1/2" x 2" single-ply maple (very thin) veneer from here
:

http://www.leevalley.com/en/wood/page.aspx?p=32820&cat=1,250,43217


On 2 September 2011 02:44, Darcy Whyte <darcy at siteware.com> wrote:

>
> I was able to pass a file from Sketchup to Inkscape:
>
> http://mambohead.com/2011/09/cad-and-laser-cutting/
>
> So this means that you can use Sketchup with it's easy learning curve. Then
> you can go through MeshCAM or Phlatboyz for 3D, 2.5D CNC milling.
>
> Or prepare it for printing (through Inkscape) which should work on the
> Epilog (or Pokono) and stuff...
>
> Darcy
>
>
>
>
>
>
>
>
>
> On Fri, Sep 2, 2011 at 12:37 AM, Trevyn Watson <trevyn at dybydx.ca> wrote:
>
>> I've found that trying to use Inkscape for drafting only ends in tears.
>> You might like DraftSight, a free AutoCAD workalike.
>> http://www.3ds.com/products/**draftsight/free-cad-software/<http://www.3ds.com/products/draftsight/free-cad-software/>
>>
>> It has a steeper learning curve than Inkscape because its interface is
>> identical to AutoCAD, but there are lots of tutorials and help pages and
>> it's worth learning if you want to do precise drafting for mechanical parts
>> rather than drawing.
>>
>> On 02/09/2011 00|15, Darcy Whyte wrote:
>>
>>>
>>> I wish it had the little measuring tape like Sketchup. Or that feature
>>> where you make a line then punch in a number for the length of the
>>> line.... And the snap to objects behavior....
>>>
>>> I'm going to try both Inkscape and the Sketchup to Inkscape conversion
>>> and see which one gels first.
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Fri, Sep 2, 2011 at 12:12 AM, Andrew O'Malley <aomalley at gmail.com
>>> <mailto:aomalley at gmail.com>> wrote:
>>>
>>>    +1 for Inkscape, a nice, free vector program. Bit of a learning curve,
>>>    but it's what I've been using for all my laser'ing.
>>>
>>>    ao.
>>>
>>>
>>>     > Message: 2
>>>     > Date: Thu, 1 Sep 2011 23:48:55 -0400
>>>     > From: Darcy Whyte <darcy at siteware.com <mailto:darcy at siteware.com>>
>>>
>>>     > Subject: Re: [Lab] Laser
>>>     > To: Jonathan Edwards <zigwhentheyzag at ymail.com
>>>    <mailto:zigwhentheyzag at ymail.**com <zigwhentheyzag at ymail.com>>>
>>>     > Cc: lab <lab at artengine.ca <mailto:lab at artengine.ca>>
>>>
>>>     > Message-ID:
>>>     >
>>>    <CAGTEw4yTcgysq+vC93QkxwzFo=**0mc1=Nmm1v+PiR7QV++=+C5Q at mail.**
>>> gmail.com <C5Q at mail.gmail.com>
>>>    <mailto:C5Q at mail.gmail.com>>
>>>
>>>     > Content-Type: text/plain; charset="iso-8859-1"
>>>     >
>>>     > I don't think the machine minds but if you are using a system such
>>> as
>>>     > Photoshop the problem will be more at your end.
>>>     >
>>>     > For instance if you made a circle that was 1" and the .001" line
>>>    width and
>>>     > then changed it to a 3" circle by stretching it you'd have a
>>>    couple of
>>>     > issues. One is that you'd be scaling the line width. The second
>>>    is that the
>>>     > raster would scale up into a lower res circle.
>>>     >
>>>     > With a vector based system you can change the size of the circle
>>>    and the
>>>     > line thickness more independently. .
>>>     >
>>>     >
>>>
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>>>
>>>
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>>
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