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    Alternative Carriage Adapters

    Smart effector for delta printers
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    • tjb1
      tjb1 last edited by

      Are PCB carriage adapters available for 20mm wide x 15mm tall bolt patterns? Looking at putting this on my Kossel Mini and would like to avoid printing an adapter.

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      • T3P3Tony
        T3P3Tony administrators last edited by

        Unfortunately not, you would need to change to 2020. Are you sure your mini Kossel has 2015, from memory mine had 20*20 as those are standard for mounting on rails.

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        • Dougal1957
          Dougal1957 last edited by

          I suspect he may have IGUS Rails tony which are 20x15 you could print a jig and then drill 2 extra holes in the Carriage PCB's I believe they are totally passive so you won't hurt anything

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          • T3P3Tony
            T3P3Tony administrators last edited by

            Yes that's an option although the holes at 15 would be very close to the originals at 20. (centers 5mm apart hole radius 1.5mm, only 2mm of PCB between holes).

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            • Cata
              Cata last edited by

              mgn12c are 20*15

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              • dc42
                dc42 administrators last edited by

                Sadly Igus doesn't offer the standard "long body" carriages that other manufacturers do.

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                • c310
                  c310 last edited by

                  Igus doesn't offer the standard "long body" carriages

                  dc42, what do you think on hiwin QHH15CA carriage?
                  https://motioncontrolsystems.hiwin.com/configurator/qh-series–-interchangeable-type---block

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                  • dc42
                    dc42 administrators last edited by

                    I haven't used them so I can't comment.

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                    • tjb1
                      tjb1 last edited by

                      I was able to modify the file in KiCAD and they look to be about $20 from OSHPark but the cost of the carbon arms has kind of put me off this upgrade for now. I got my rails during the Misumi 3D Printing promotion so I'm not sure what brand they are anymore but they are 20x15.

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                      • dc42
                        dc42 administrators last edited by

                        @tjb1:

                        I got my rails during the Misumi 3D Printing promotion so I'm not sure what brand they are anymore but they are 20x15.

                        You could buy long-body carriages to fit the same rails, but you need to be careful when fitting them.

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                        • srs5694
                          srs5694 last edited by

                          Before I got my Delta Smart Effector, I was using a modified version of this Thing:

                          https://www.thingiverse.com/thing:932959

                          As delivered, it has 20x20 screw spacing; but I had to modify it for 20x16 spacing to attach to the sliders I'm using, which I accomplished by editing the "for (y = [-10, 10])" line to "for (y = [-3, 13])". I made a few other tweaks, too.

                          When I got my Smart Effector, I needed to change the ball stud spacing to 55mm, which is done via the rodSeparation and ballStudDistance variables (they're semi-redundant). I'm now using my modified version of this Thing with my Smart Effector, without the carriage pieces provided with the Smart Effector. This seems to work fine – or at least, as well as can be expected. (There's a bit too much play in my carriage, and printing parts like these, rather than using manufactured parts, might be a contributing factor.)

                          In any event, you should be able to make similar changes, just with a tiny change for 20x15 spacing. If you're not comfortable with OpenSCAD, I could do this for you and send you the files; PM me if you want this. Note that I can't promise how whatever I produce would mate with your slider; it might be awkwardly high or low. If you do it yourself, you can adjust the y range in that "for" statement to get it to fit the way you want.

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