PDA

View Full Version : Create dxf file.



Tanky_Turk
09-02-2014, 01:35 PM
Hi all,

How can I create a dxf file from the image below?

I use Photoshop to design all my artwork which I then print out and etch on copper or brass.

What I want to do now is to engrave these designs onto wood or /brass/copper with the small CNC I am building.

The badge and the grenades are .jpegs which are added to the design.

I tried "live trace" in Illustrator, the text comes out as it should be but the badge and the grenades come up as "double" lines. I get the same in Inkscape.

Any help greatly appreciated.

Thanks




11541

firetrappe
09-02-2014, 10:38 PM
To avoid the double lines in Illustrator, in Tracing Options : turn off fills, turn on strokes and change 'max stroke weight' to 100px.

You will probably have to combine this output with the text you traced using the default settings.

HTH,
Si.

GEOFFREY
09-02-2014, 11:05 PM
I must admit that I would like to find some decent software (even if it is a bit expensive) that will give a fairly clean vector drawing from bitmap/jpeg to DXF. I have posted this request some time ago, but the usual "freebies" Inkscape etc. just do not seem to work too well for me. I have considered trying a diditizing tablet - does anybody use that method? Thanks in anticipation of any suggestions. G.

Tanky_Turk
10-02-2014, 05:36 PM
Thanks mate, that did the trick.

I made a new psd file and separated the "graphics" and "text" in two different layers. I then opened the psd file and traced each part indivudually as you suggested. The "graphic" trace looks (almost) perfect now, just got to play around with the other setting to see if I can get a better trace.

The only other problem I have now is that the dxf file is massive, about 38MB, takes ages to open and work on in CAMBAM.

Is there any way to make it smaller without losing quality?

Thanks for your help.

Eric


To avoid the double lines in Illustrator, in Tracing Options : turn off fills, turn on strokes and change 'max stroke weight' to 100px.

You will probably have to combine this output with the text you traced using the default settings.

HTH,
Si.

Tanky_Turk
10-02-2014, 05:43 PM
Geoffrey, wouldn't that just be great, even better if it was freeware. LOL

I met a guy on Facebook, a great artist in drawing, he uses a digitizing tablet with a program called XARA and turns out some great work with it.

My son bought me one a few years ago but I could never get the hang of the thing, mind you must be about 10-12 years ago so maybe the newer ones are a lot better.

Bazzer
10-02-2014, 08:07 PM
You can trace a bmp JPEG in vcarve pro, but not sure if you would get the result you are after.
I could always give it a go if it helps

Tanky_Turk
10-02-2014, 09:03 PM
This is where I am at the moment, a lot better than before and no double lines.
I have got the dxf file size down from 39MB to about 9MB but still need to get lower, took ages just to open it with CAMBAM.
I stopped the conversion to Pollylines after about 40mins or so and back to trying to get a smaller dxf file.

The image is only 200mmx150mm so should not be that big, should it?

11560