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CNC router table, what next? Scanner query.

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  • CNC router table, what next? Scanner query.

    I spent my COVID-19 lock down period working on the final stages of my 8'x4' (more or less) CNC router table and got it working We have made a couple of roadside signs for our museum and some trivial projects what what about the next stage?

    What sort of scanner would be used to transfer a design from paper (for example) to g-code? Simple designs I can plot manually and write in Notepad, bigger designs I can draw full size on the machine table and manually copy to g-code. But what I am really looking for is how these jobs might be done in a conventional shop?


  • #2
    https://www.creaform3d.com/en#gref

    Cost is very likely far more then you would like.

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    • #3
      Originally posted by Bented View Post
      https://www.creaform3d.com/en#gref

      Cost is very likely far more then you would like.
      Yes, quite possibly more than I might like to pay!

      Comment


      • #4
        What would be really fun is to add scanning to your router table. The hard mechanical parts are done - just make an adapter to hold a handheld document scanner like this:
        https://www.amazon.com/dp/B07GVCTZ63/
        and use the router software to run it over the document and get a bazillion pixels. Then it's just SMOP (Small Matter Of Programming)

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        • #5
          I don't know about G code generation capabilities of Inkscape software but it can "vectorize" a bitmap drawing and I can use it to cut with my laser.
           
          Helder Ferreira
          Setubal, Portugal

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          • #6
            Originally posted by Bob Engelhardt View Post
            What would be really fun is to add scanning to your router table. The hard mechanical parts are done - just make an adapter to hold a handheld document scanner like this:
            https://www.amazon.com/dp/B07GVCTZ63/
            and use the router software to run it over the document and get a bazillion pixels. Then it's just SMOP (Small Matter Of Programming)
            A perfectly reasonable idea!

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            • #7
              Originally posted by Noitoen View Post
              I don't know about G code generation capabilities of Inkscape software but it can "vectorize" a bitmap drawing and I can use it to cut with my laser.
              I have played a little with this but it seemed there were just too many stray 'spots' to be manually removed, not to say the idea is without merits though!.

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              • #8
                If the Inkscape extension Noitienposted does not work for you there are plenty more
                https://inkscape.org/gallery/=extension/
                --
                Tom C
                ... nice weather eh?

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                • #9
                  Originally posted by Astronowanabe View Post
                  If the Inkscape extension Noitienposted does not work for you there are plenty more
                  https://inkscape.org/gallery/=extension/
                  There are a few things I need to look at.

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                  • #10
                    What type of designs are you thinking about doing? That will make a difference on what software you will need. What controller are you using? Not all G-code is the same. Some controllers use non standard G-code but I am sure you know all that. You have Fusion 360 for instance and then there is Vectric V carve that works well also for router work. You have lots of options. Sheetcam is a good option and won't break the bank for producing G-code for routers or plasma. You will want to scan, vectorize, scale, convert to DXF or SVG then go into a CAM program to produce the G-code. Most of it sounds more difficult than ti actually ends up being.
                    Location: The Black Forest in Germany

                    How to become a millionaire: Start out with 10 million and take up machining as a hobby!

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                    • #11
                      Hi, this is the most ambitious project so far!
                      Click image for larger version

Name:	AirportMuseumSign.jpg
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ID:	1884771

                      John

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                      • #12
                        I have made a router attachment for cutting sheet material, a needler for cutting foam sheet etc, a drag knife for cutting vinyl etc, attachments for handling paint pens and brushes and of course there is scope for a few more techniques!

                        There are any number of somewhat naff designs available online but what I would really like is to copy aircraft parts to be reproduced in plywood etc which fortunately are often available in full size which we can manually copy.

                        John

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                        • #13
                          It is nearly two weeks since my little accident but I am still not safe anywhere except sitting in my chair or sleeping in bed, plenty of time for thinking though!

                          The next stage of this project is to mount a DSLR camera on my CNC machine and experiment with macro photography. It will be interesting to see if I can handle the data volumes that might be involved.

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