Author Topic: What program to convert .jpg or .gif files to dxf format  (Read 23650 times)

Offline mofosheee

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What program to convert .jpg or .gif files to dxf format
« on: February 28, 2012, 23:13:49 pm »
Dear Cambamers

Suppose that I draw an image an save it as in a jpg format.,  what program is best for converting the image to dxf.  Thank you

Offline Orifice62

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #1 on: February 28, 2012, 23:45:30 pm »
Hi Mofosheee,
Inkscape:  http://inkscape.org/
Heres your Turbo Flange.dxf
I hope this works :P

Bret

Offline GeorgeRace

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #2 on: February 29, 2012, 00:06:16 am »
I like img2cad.  You can see it at http://www.img2cad.com

A couple of files below.
George
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Offline blowlamp

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #3 on: February 29, 2012, 12:57:45 pm »
mofosheee.

Why not just draw it in a CAD program and save it as a DXF, as it's a much more predictable way of getting what you want?


Martin.

Offline blowlamp

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #4 on: February 29, 2012, 15:55:30 pm »
mofoshee.

It's certainly a valid approach for some things, but I wouldn't recommend it for parts that have to be made to an exact size, although it's a useful tool for bringing in artwork.

You'll almost always have to mess around with areas of a drawing when brought in this way and the part you've given as an example (gasket/flange?), would be better made to some known dimensions, which is much easier to do in a proper CAD program - and some good free one are available, if that's what you want.



Martin.


Offline blowlamp

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #5 on: February 29, 2012, 16:22:10 pm »
For instance, I convert and save the attached .jpg file to dxf.  I open CamBam and and attempt to load the selected "dxf" file.   

A window pops up informing me that the original was in inches and I am attempting to change units of measure to millimeters.  I then select "no" to maintain the same units of measure (inches) then attempt to open the file. 

Results are that:

1) mm's are again displayed in the units of measure window.
2) No image is displayed.

What am I doing wrong please?

Thank you in advance. 

1/ The pop-up window is telling you that the file is in mm's and is asking if you would like to make mm's your default unit setting for CamBam. However, because the file is in mm's, that is why it is displayed as such.

2/ There don't appear to be any objects in your file for CamBam to display.

You aren't doing anything wrong, but problems like No2 are more common using the scan to cad technique.


Martin.

Offline blowlamp

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #6 on: February 29, 2012, 18:38:33 pm »
Jerry.

To get you going, here is the part drawn up in a CAD program from the dimensions shown in your picture.


Martin.

Offline Dragonfly

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #7 on: February 29, 2012, 19:49:49 pm »
All programs with bitmap tracing capabilities produce inaccurate results. Depending on image resolution, contrast, and used method for finding and tracing the edges.
I have a lot of experience in the field. Where there's no other way I prefer to trace manually and then edit the paths in a vector editor program. For example I have made a motor head gasket drawing to be laser cut from a scanned image, but it's a pain.

Offline swarfing

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #8 on: February 29, 2012, 22:09:58 pm »
Here is a simple to use 2d package that is the same as i use under linux. The link is for a free version for windows :-)
http://www.himili.com/blog/downloads/qcad-for-windows-gpl-version/


Offline Imagining

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #9 on: March 01, 2012, 00:50:04 am »
Thank you Martin for that and all others for their valued input.   Would somebody please suggest a CAD program that would compliment CamBam?

So much to learn

Jerry

It isn't so much the CAD program being compliant with Cam Bam, it is the file type.  For 2D objects it is DXF files, for 3D there are other file types.

For a easy and free start you should look at Google SketchUp.

And yes, so much to learn, but we are all happy to help as others have helped us.

Offline lloydsp

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #10 on: March 01, 2012, 01:01:26 am »
For a easy and free start you should look at Google SketchUp.

-------------
Having developed several large 3D landscape models in Sketchup of real-world venues (theme parks, for setting up fireworks displays), I can say that I'd rather pay double for some unknown commercial CAD program that might not even work, than to get Sketchup for free.

Lloyd


"Pyro for Fun and Profit for More Than Fifty Years"

Offline Imagining

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #11 on: March 01, 2012, 02:34:49 am »
Here is a 2D CAD program that is open source

http://librecad.org/cms/home.html

Offline Imagining

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #12 on: March 01, 2012, 02:53:29 am »
Lloyd:

My experience with SketchUp for designing furniture with readily identifiable parts that can easily be visualized and then assembling those readily identifiable parts with known assembly methods is completely different from  " large 3D landscape models ... of real-world venues (theme parks, for setting up fireworks displays)".

I export DXF and STL files of objects designed with SketchUp to make the furniture pieces, many which are curvilinear in two planes, and have had not a bit of difficulty.

If I do start to design and the machine " large 3D landscape models ... of real-world venues (theme parks, for setting up fireworks displays)"  I will keep your observations in mind.

Thank you ever so much for your insights and concerns.
« Last Edit: March 01, 2012, 23:02:30 pm by Imagining »

Offline Imagining

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #13 on: March 01, 2012, 02:59:29 am »
Here is an open source 2/3D parametric CAD program:  http://solvespace.com/index.pl

Offline atwooddon

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Re: What program to convert .jpg or .gif files to dxf format
« Reply #14 on: March 01, 2012, 14:58:03 pm »
Basically, for any file type CamBam can handle (ie, .dxf, .stl, etc) you just open the file using the File > Open command.  CamBam can currently handle .cb, .dxf, .stl, .3ds, .gbr file types.  Maybe more, I haven't looked recently.  I primarily work with .cb, .dxf, .stl file types.

Don