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Bed levelling

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Bed levelling

Home › Forums › 3D Printers and 3D Printing › Bed levelling

Viewing 8 posts - 1 through 8 (of 8 total)
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  • 7 March 2015 at 10:45 #31482
    jason udall
    Participant
      @jasonudall57142

      err surface grinding….

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      7 March 2015 at 10:45 #182447
      jason udall
      Participant
        @jasonudall57142

        Bed levelling the next printer…

        7 March 2015 at 11:03 #182448
        jason udall
        Participant
          @jasonudall57142

          20150228_162758_2480.jpg20150228_162758_2480.jpg

          7 March 2015 at 11:04 #182449
          jason udall
          Participant
            @jasonudall57142

            You know..one day I might get the hang of this forum software

            7 March 2015 at 11:32 #182450
            Muzzer
            Participant
              @muzzer

              Looks as if you are using the table drive to self-machine the top surface with an angle grinder. Presumably you also find the grit tightens up the various linear bearings, ballscrews etc?

              Looks like quite a beast – what are the dimensions of the working envelope. Can you tell us a bit about it – what drives it etc?

              Murray

              7 March 2015 at 20:51 #182493
              jason udall
              Participant
                @jasonudall57142

                As to grind dust.
                Angle grinders dont “shed”..they do wear but not significantly on this duty.. ( I know since I dressed wheel..A first on an angle grinder … and checked wheel during process . Pointless if wheel wore significantly..)

                Now the ground down al..
                Well as you know the stuff burns in air..so the dust. (What could be found on machine) . was very fine.

                THE machine was degreased after..and the wipe cloths checked ( I too was concerned and interested. .)

                Well either all the swarf burnt or blew away ..and no grit found.

                The recirculating balls were blown dry.
                And re greased ( oil really).

                It is not maybe the proper technique but the clean up found no contamination. .and no trouble.

                7 March 2015 at 20:59 #182494
                jason udall
                Participant
                  @jasonudall57142

                  The drives.
                  Size 27.
                  5 amp 48 volt. Micro stepper drives from cnc4you.
                  .
                  Superb drives at around 30 quid
                  And same for the 4 Nm motors..again 30 odd quid
                  The xy lead screws are 20mm lead 20 mm dia
                  The guide rails are 20 mm
                  The x axis uses two motors each with 2 mm 20 mm leads…

                  The print envelope is 400 x 400 x400..
                  Travels currently being optimised but print speeds at 50 mm/min.
                  Depositing 25 mm cube/sec

                  8 March 2015 at 15:26 #182554
                  Neil Wyatt
                  Moderator
                    @neilwyatt

                    > the stuff burns in air

                    To form little bits of aluminium oxide…

                    Neil

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