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    Tevo Little Monster - mesh grid results

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    Tuning and tweaking
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    • denkeundefined
      denke
      last edited by

      Check the hotend height with a sheet of paper when z height is 0.
      Either you have the z height wrong caused by faulty trigger height, or you are underextruding so the extruder steps/mm should be checked too.

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      • denkeundefined
        denke
        last edited by

        Oh, and the mesh bed compensation values should be loaded by adding this to the slicer's start gcode section:
        G29 S1 ;load and apply mesh bed calibration values

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        • malkemundefined
          malkem
          last edited by malkem

          Hello guys,

          i have spent the last days to get rid of my issues with this little monster, but it seems that nothing works...

          i have installed the E3D V6 instead of the volcano. i have tried 8-factor and 9-factor with mesh grid values loaded and without.

          The extruder steps/mm are exact calibrated.

          Always i ran the auto delta calibration with 9-factor the lenght of my rods changes between 397mm and 404mm.
          The heightmap also looks always different anytime i ran the mesh compansation.

          i thought about to purchase the full kit of the smart effector + magballs rods with 360mm length, but i dont know if this going to help.

          0_1525285510418_IMG_2012.jpg

          The first layer always looks different. My settings in Simplify are with 30% ouline overlap but in the picture it seems like i have to change to 100% overlap to reach the outline in the right part.

          I am doing something heavily wrong and i dont know what it is...

          Should i get the smart effector?

          Should i get rid of the tilt in my heatbed?

          denkeundefined 1 Reply Last reply Reply Quote 0
          • dc42undefined
            dc42 administrators
            last edited by

            What type of Z probe does the TLM use? For delta printers, a nozzle contact Z probe is recommended. Any type of Z probe that is offset from the nozzle Neill be sensitive to varying effector tilt, which his hard to eliminate completely on a delta printer.

            Eliminating the bed tilt is a good idea, if you can do it easily e.g. by putting shims under the bed supports.

            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

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            • malkemundefined
              malkem
              last edited by

              hello dc42,

              the TLM uses the BLTouch as Z probe and the Y offset to the Nozzle is approximately 19mm.

              The Heatbet is glued with silicone... 😓 I am going to try in the next step to remove it carefully to get the heatbed as leveled as possible.

              I have just started the same print twice and i noticed that the second print slightly shifted in X direction.😕

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              • denkeundefined
                denke @malkem
                last edited by

                @malkem
                I originally had a microswitch based z probe sensor
                The microswitch was inaccurate mainly because it deformed the bed on contact quite a bit.

                Then I changed to an inductive sensor, which was even more inaccurate because of the effector tilt.

                Then changed to smart effector:
                The smart effector -according to my experience- is very precise, and needs a wey small tap to activate, it does not deform the bed in any meaningful way.

                BTW, I have/had the same disconnected wall problem with cura 3.2.1 Increased the flow rate to 105% and set one more wall on every second layer, which seem to solve the problem for me.

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                • malkemundefined
                  malkem
                  last edited by

                  No matter what i do, i got always the same gaps if printing from the left to the right side. left side looks perfect while printing to the right side i got gaps between the printed lines.

                  it seems like i have a mechanical issue, but i cant figure out what it is. maybe one of the stepper motor loosing steps?
                  I cant believe this is just because of the z probe.

                  My heated bed are now flat and not tilted anymore.

                  dc42undefined 1 Reply Last reply Reply Quote 0
                  • dc42undefined
                    dc42 administrators @malkem
                    last edited by

                    @malkem said in Tevo Little Monster - mesh grid results:

                    No matter what i do, i got always the same gaps if printing from the left to the right side. left side looks perfect while printing to the right side i got gaps between the printed lines.

                    it seems like i have a mechanical issue, but i cant figure out what it is. maybe one of the stepper motor loosing steps?
                    I cant believe this is just because of the z probe.

                    That's probably due to varying effector tilt. See https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer. Mounting a bulls eye spirit level on the effector is a good way to detect effector tilt.

                    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

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                    • malkemundefined
                      malkem
                      last edited by

                      I am going to place a order for the smart effector and the magball arms and just give it a try.

                      Anyone knows if 360mm arms enough for the tevo little monster? i cant find 400mm arms in the duet3d shop

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                      • dc42undefined
                        dc42 administrators
                        last edited by

                        If you need 400mm arms you can order them directly from Haydn Huntley.

                        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

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                        • malkemundefined
                          malkem
                          last edited by

                          Now its done. i have ordered the smart effector and the 400 mm arms by Haydn Huntley. i hope the delivery doesnt take too much time and hopefully its gonna improve my prints.

                          thanks so far for your help! i will keep you guys updated.

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