Hi all, hope somebody could explain me the reason… I downloaded this b/w image:

CAD & CAM Tool Chain LaserWeb/CNCWeb Suppport
1

Hi all,

hope somebody could explain me the reason…

I downloaded this b/w image:

I used Inkscape to trace it to vector and used the svg file in LW4. It took a lot of time to load and to generate Gcode. The result was a file of about 282000 lines!!!

I loaded the same svg file on LW3 and with the same parameters it generated pretty fast a Gcode file of about 23800 lines (less than a tenth).

Last test I loaded the .jpg file in LW3 and traced the vector directly in LW3. The result was a Gcode file of 9100 lines (more than 30 times less).

In LW3 the laser worked fast and very well and produced a nice result, in LW4 instead, the laser was very slow and produced a bad result.

2

I cannot explain why is faster but to increase the speed in generation read the related post and click on the issue https://plus.google.com/+ArielYahni/posts/dr7R34GUidY

3

I have already read that post but it does not make me wonder if I’m wrong or if LW3, for my configuration and for my purposes, is actually better than LW4 as it seems.

4

LW4 was developed new so there should / are big differences. The above link includes a discussion that explain how to solve slow loading / generating vectors

5

I guess it has something to do with pixel density.
What tool diameter did you set in the raster operation?

For example: 0.1mm tool diameter produces 9 times more data than 0.3mm!

6

@cprezzi seems he is tracing from a bitmap not the other way around but indeed he should be aware that a very small size ( at least lower than 0.1 ) could be a big problem in either app

7

Maybe I have to express myself better. I did not do raster operations, I just traced the edges of the figure with no fill operation. For laser cut mode no tool diameter is required.