1. Screw drive Y axis with harmonic damper


    from Mark Rehorst / Added

    66 Plays / / 0 Comments

    MegaMax Y axis printing a part without the harmonic damper on the Y axis.

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    • MegaMax screw drive Y axis without harmonic damper


      from Mark Rehorst / Added

      74 Plays / / 0 Comments

      MegaMax printing a part with printed harmonic damper on screw drive Y axis.

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      • MegaMax printing with new X-axis, BullDog XL extruder and E3D V6 hot-end


        from Mark Rehorst / Added

        71 Plays / / 0 Comments

        I just installed the new X axis in MegaMax- it now uses a linear guide and GT2 belt drive instead of the 1/2 round guide rails and 5mm pitch belt. It is also being driven by a DSP based stepper driver, as is the Y-axis. The connection to the extruder carriage is via a flex ribbon cable. The machine is being controlled by a SmoothieBoard. This cube was printed with 0.3mm layers and everything was set to 50mm/sec in slic3r. The only complaint I have about the E3D V6 hot-end is that the fan is very delicate and the screws used to hold it on the duct require a lot of force to drive. I had to superglue two of the three fan motor supports. I'll be ordering another fan ASAP.

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        • MegaMax with screw drive Y axis printing at 30 mm/sec


          from Mark Rehorst / Added

          25 Plays / / 5 Comments

          A little noisy because acceleration was 3k mm/sec^2 and junction deviation was 0.05 mm. Other than the infill being a little light on the top surface, the part is beautiful.

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          • MegaMax with screw drive Y axis printing at 100 mm/sec


            from Mark Rehorst / Added

            22 Plays / / 0 Comments

            Smoothieboard problems finally solved- all it needed was a different uSD card! Here's some fuzzy video of MegaMax pushed to 100 mm/sec, acceleration at 2k mm/sec^2, junction deviation at 0.02 mm. At this speed, I start to see some of the wavy artifacts in the print surface that the screw conversion was intended to eliminate.

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            • MegaMax screw drive Y-axis print test


              from Mark Rehorst / Added

              34 Plays / / 0 Comments

              Screw drive installed and operational (sort of). Print ultimately failed when Y axis shifted an hour or two into the print. I've turned down the jerk, acceleration, and maximum speeds and it still has problems. Conclusion: motor is too small!

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              • MegaMax Y axis screw drive test


                from Mark Rehorst / Added

                26 Plays / / 0 Comments

                MegaMax thinks he is printing something with the new screw drive Y-axis. It definitely won't be any quieter than the old belt drive system, but it is a lot more musical!

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                • Test of filament spooler idea


                  from Mark Rehorst / Added

                  17 Plays / / 0 Comments

                  Filament is wound on large, oscillating cylinder in a figure 8 pattern, then covered with saran wrap, then the small cylinder is removed, and the filament is unwound by pulling the starting end through the overlapping holes in the figure 8. No twists, no kinks, no knots!

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                  • Milwaukee Makerfest 2013


                    from Squidia / Added

                    Hosted by Milwaukee Makerspace. http://milwaukeemakerspace.org/ Video by Tyler Strasser 'Squid"

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                    • Super Maker Hacker Geekend, Aug 4-5


                      from Bucketworks / Added

                      150 Plays / / 0 Comments

                      Join us to celebrate making, hacking, geekery and space exploration August 4-5 at Bucketworks and the Evanston Mini Makerfaire! Learn more at http://bucketworks.org/

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