Vector shapes and tool pathing

This topic contains 8 replies, has 3 voices, and was last updated by  Chris 7 years, 7 months ago.

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  • #2214

    nazerine
    Participant

    Hi guys,

    I’m trying to import the pdf vectors into Vectric VCarve 5 to design tool pathing to cut the design on a cnc router table.

    First try to import, vcarve stacks all pages/vectors into one area. Used acrobat to split each page into a file. Import pdf, set work area to 16×23″, everything is to scale now.

    Now the real problem: some circles are not actual vector circles, but 16 small rectangles arranged in the shape of a circle. Also the mortise holes are 4 rectangles, not a 4 sided vector line.

    My plan was to try cutting out a few pieces using a 1/16″ end mill and dogbone/fillet the mortise and tenon joints and see how well it first together.

    PS: Found the link to here from hackaday.com

    #3071

    Taylor
    Keymaster

    Nazerine,

    When you say that a circle imports as a set of rectangles, do you mean that it actually displays 16 four-sided rectangles? Or perhaps you’re getting a 16-sided polygon. Can you post a screencap so we can help you troubleshoot?

    #3072

    nazerine
    Participant

    Good morning Taylor,

    Yes they are imported as 16 four-sided rectangles. Shapes instead of lines. I believe it is a drawing issue, as importing is very straight forward. Like I said, not all are being created this way.

    I was going to post a screen cap, but I could not see how to attach files, inline images, or any rules in regards to posting offsite links. Wasn’t sure so didn’t do it.

    Please advise.

    #3073

    Chris
    Keymaster

    nazerine, you can now post images with the img tag!

    Sorry, it is not a default option in bbPress… had to install a plugin.

    #3074

    Chris
    Keymaster

    Also, please see the downloads section for a new .zip with a DXF included. Hope that helps!

    #3075

    nazerine
    Participant

    It would seem some of the issues are corrected with the DXF; but alas there are new ones.

    Circles are now almost vector lines, they are now 4-piece open vector circles. I have to manually join/close them to apply a cutting tool path. All other vectors are joined and closed properly.

    Perhaps I’m just a DXF newb, but I can only get the ‘first page’ when loading it. Both in google sketchup, and vectric vcarve. I would imagine there should be one dxf file, for each 16×32″ sheet to be cut.

    Otherwise it loads to scale correctly and ready for me to design some tool paths to cut this on a cnc router :)

    #3076

    Chris
    Keymaster

    nazerine, the DXF is set up in layers; one for each cut sheet, just like in the instructions. I don’t know sketchup or vcarve, so I can’t troubleshoot specifics of those programs, but if there’s a layer function in either, try that.

    #3077

    nazerine
    Participant

    Interesting, VCarve imports the layer names, but only layer 1 has data. Sketchup imports all the layers properly, and can be viewed. Thanks for the tip :)

    Do you know of a decent open source cad software for working with 2d/dxf files?

    #3078

    Chris
    Keymaster

    >Do you know of a decent open source cad software for working with 2d/dxf files?

    nazerine, great question!

    I know that both Blender and Inkscape are free and can work with 2D vectors.

    Recommendations, anyone?

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