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    Delta does not home all axis when finished in extreme Position

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    • ProntoPrintundefined
      ProntoPrint
      last edited by ProntoPrint

      Hello
      I have a minor problem on my TLM Delta with duet wifi.
      If the effector stopped in a extreme position (most front D340) it homes but only on the axe with the most high position. the other two stop about 10 cm away on the first and the seccond pass .
      If I push home twice all axis are homed correctly.
      Can somebody tell me which parameters have to be modified that all axis are homed correctly during the first home
      Thanks

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      • Danalundefined
        Danal
        last edited by Danal

        Your /sys/homedelta.g will look something like this:

        ; homedelta.g
        ; called to home all towers on a delta printer
        ;
        ; generated by RepRapFirmware Configuration Tool on Fri Jan 12 2018 20:07:04 GMT-0600 (Central Standard Time)
        G91                        ; relative positioning
        G1 S1 X955 Y955 Z955 F1800 ; move all towers to the high end stopping at the endstops (first pass)
        G1 X-5 Y-5 Z-5 F1800 S2    ; go down a few mm
        G1 S1 X10 Y10 Z10 F360     ; move all towers up once more (second pass)
        G1 Z-5 F6000               ; move down a few mm so that the nozzle can be centred
        G90                        ; absolute positioning
        G1 X0 Y0 F6000           
        

        Increase the bold numbers:
        G1 S1 X955 Y955 Z955 F1800 ; move all towers to the high end stopping at the endstops (first pass)

        Note: This is from a large-ish delta, over 1.5 meters tall, so the existing numbers in bold above are very near a meter... yours will be smaller.

        Delta / Kossel printer fanatic

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        • dc42undefined
          dc42 administrators
          last edited by

          This is covered in the FAQ page in the Troubleshooting section.

          Duet WiFi hardware designer and firmware engineer
          Please do not ask me for Duet support via PM or email, use the forum
          http://www.escher3d.com, https://miscsolutions.wordpress.com

          ProntoPrintundefined 1 Reply Last reply Reply Quote 0
          • ProntoPrintundefined
            ProntoPrint
            last edited by

            superb, this did the trick!

            as you said I got aware that in extreme positions the one arm could be way more thant the maxiimum delta hight at all
            so I modified homedelta.g to

            For all TevoLittle Monster owners this worked for me:
            G1 S1 X630 Y630 Z630 F1800

            Original it was set to G1 S1 X510 Y510 Z510 F1800 for the TevoLittelMonster
            This caused the issue!

            Thanks a lot1_1558803118252_IMG_20190525_184837.jpg 0_1558803118252_IMG_20190525_184855.jpg

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            • ProntoPrintundefined
              ProntoPrint @dc42
              last edited by

              @dc42 thanks a lot but I have searched for a solution for 2 hours before I wrote the Topic
              Please if there is a FAQ Topic already "provide a link",
              still cannot find it.

              Thank you very much in advance!

              T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
              • T3P3Tonyundefined
                T3P3Tony administrators @ProntoPrint
                last edited by

                @prontoprint https://duet3d.dozuki.com/Wiki/FAQ#Section_When_I_try_to_home_my_printer_sometimes_the_carriage_or_carriages_move_only_part_of_the_way_towards_the_homing_switches_and_I_have_to_command_it_to_home_again_to_make_it_go_all_the_way

                www.duet3d.com

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