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    Enclosed printer water cooled motors

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    • roiki11undefined
      roiki11 @mrehorstdmd
      last edited by

      @mrehorstdmd

      They prevent the loss of magnetism that happens in ferromagnets when temperature rises above their max working temperature point, until it reaches its curie temperature and completely demagnetizes.

      Most motor magnets have the working temperature limit somewhere in the 80-160 range. Its never really stated properly and I wouldn't trust Chinese motors to use the proper materials.

      1 Reply Last reply Reply Quote 1
      • A Former User?
        A Former User @deckingman
        last edited by

        @deckingman said in Enclosed printer water cooled motors:

        That's me - I don't "do" any social media, including Facbook or even Facebook 🙂 .

        The spelling was intentional....

        1 Reply Last reply Reply Quote 0
        • aprzundefined
          aprz @Veti
          last edited by

          @Veti I've looked at the dyze cooling blocks but they only cover a small surface area of the motor. I saw this https://www.researchgate.net/figure/a-Stepper-motor-cooling-shroud-installed-on-a-NEMA-17-stepper-motor-b-Computational_fig7_311666362 and i thought instead of running air through that heat shroud, run water and cool it further with a peltier. I think it looks promising as a better method of keeping the motors evenly cool.

          roiki11undefined 1 Reply Last reply Reply Quote 0
          • aprzundefined
            aprz @Rushmere3D
            last edited by

            @Rushmere3D I've seen that video of his when i was searching for watercooling. His method of cooling is similar to dyze he really did a great job.

            jens55undefined 1 Reply Last reply Reply Quote 0
            • roiki11undefined
              roiki11 @aprz
              last edited by

              @1997alex said in Enclosed printer water cooled motors:

              @Veti I've looked at the dyze cooling blocks but they only cover a small surface area of the motor.

              Cincinnati uses them in their SAAM HT and they seem to work fine.

              1 Reply Last reply Reply Quote 0
              • aprzundefined
                aprz @Veti
                last edited by

                @Veti I ended getting 0.9 degree moons stepper motors and i'm hoping they can withstand the heat. A member on prusa forum did multiple test with moons motors and LDO motors and the moons out performed the LDO motors.

                https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles-.../stepper-motor-upgrades-to-eliminate-vfa-s-vertical-fine-artifacts/

                Vetiundefined 1 Reply Last reply Reply Quote 0
                • jens55undefined
                  jens55 @aprz
                  last edited by

                  @1997alex said in Enclosed printer water cooled motors:

                  @Rushmere3D I've seen that video of his when i was searching for watercooling. His method of cooling is similar to dyze he really did a great job.

                  I think his advise is dangerous and irresponsible but maybe that's just me .......

                  aprzundefined 1 Reply Last reply Reply Quote 0
                  • aprzundefined
                    aprz @jens55
                    last edited by

                    @jens55 hahaha, i suppose.

                    1 Reply Last reply Reply Quote 0
                    • Vetiundefined
                      Veti @aprz
                      last edited by

                      @1997alex said in Enclosed printer water cooled motors:

                      I ended getting 0.9 degree moons stepper motors and i'm hoping they can withstand the heat. A member on prusa forum did multiple test with moons motors and LDO motors and the moons out performed the LDO motors.

                      yes i have read that article. heated chamber was not one criteria there though 🙂

                      1 Reply Last reply Reply Quote 0
                      • mrehorstdmdundefined
                        mrehorstdmd
                        last edited by

                        Does the rotor generate its own heat or does it get all its heat from the stators?
                        Does applying a heatsink or water jacket to the motor's stators cool the rotor which is separated from the stators by an air gap?

                        https://drmrehorst.blogspot.com/

                        theruttmeisterundefined 1 Reply Last reply Reply Quote 0
                        • theruttmeisterundefined
                          theruttmeister @mrehorstdmd
                          last edited by

                          @mrehorstdmd
                          Yes.
                          Resistive losses will convert some of the magnetic flux into heat.

                          But generally things like the insulation and the lubricant in the bearings are the limiting factors (the solder if there is any now I think about it).
                          Most steppers are soft iron for both rotor and stators, iirc, which has a curie temp waaaaay above anything you are going to see.

                          Water cooling is going to protect at least 1 of the bearings and probably the wiring. Its not the most efficient way of doing things, but it works.

                          The next issue, if you are trying to get really hot is belt life. Gates only rate them to 80c iirc.

                          Isolate, substitute, verify.

                          JamesMundefined 1 Reply Last reply Reply Quote 0
                          • JamesMundefined
                            JamesM @theruttmeister
                            last edited by

                            @theruttmeister Gates offers high temperature belts rated to 135C

                            https://www.filastruder.com/products/gates-2gt-belts-high-temperature-epdm

                            theruttmeisterundefined 1 Reply Last reply Reply Quote 0
                            • whosrdaddyundefined
                              whosrdaddy
                              last edited by

                              No need for a peltier to cool the hotend and steppers, A single rad with 120mm fan will exceed all needed cooling capabilities.
                              When I am done with my project, 5 steppers and 4 hotends will be cooled by a single cooling loop, (aiming for 80° chamber temps).
                              I use these on the steppers and do their job.

                              1 Reply Last reply Reply Quote 0
                              • theruttmeisterundefined
                                theruttmeister @JamesM
                                last edited by

                                @JamesM said in Enclosed printer water cooled motors:

                                @theruttmeister Gates offers high temperature belts rated to 135C

                                https://www.filastruder.com/products/gates-2gt-belts-high-temperature-epdm

                                And going to 150c (for PEEK) means you need to look at silicone belts 😉

                                Isolate, substitute, verify.

                                Vetiundefined 1 Reply Last reply Reply Quote 1
                                • Vetiundefined
                                  Veti @theruttmeister
                                  last edited by Veti

                                  @theruttmeister said in Enclosed printer water cooled motors:

                                  And going to 150c (for PEEK) means you need to look at silicone belts

                                  might was well go for a ball screw based system then.

                                  A Former User? 1 Reply Last reply Reply Quote 0
                                  • Nuramoriundefined
                                    Nuramori
                                    last edited by

                                    I am simply adding a water cooling loop and blocks at the motors.

                                    1 Reply Last reply Reply Quote 0
                                    • A Former User?
                                      A Former User @Veti
                                      last edited by A Former User

                                      @Veti said in Enclosed printer water cooled motors:

                                      @theruttmeister said in Enclosed printer water cooled motors:

                                      And going to 150c (for PEEK) means you need to look at silicone belts

                                      might was well go for a ball screw based system then.

                                      how would you run ball screws on a Core-XY ?

                                      And as i already said i am going for the simplest method of all, placing the motors outside the chamber (no active cooling required) and using high temp belts, i wont be printing peek

                                      Vetiundefined 1 Reply Last reply Reply Quote 0
                                      • Vetiundefined
                                        Veti @A Former User
                                        last edited by

                                        @CaLviNx said in Enclosed printer water cooled motors:

                                        how would you run ball screws on a Core-XY ?

                                        you cant, it would be a Cartesian printer.
                                        see this as an example
                                        https://www.thingiverse.com/thing:2929869

                                        1 Reply Last reply Reply Quote 1
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