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    GET3D free give away free extruder.

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    • jens55undefined
      jens55
      last edited by

      Good point about vertical vs horizontal space requirements but the bit about a prototype (which it likely is since it was just released) seems a bit harsh.

      fcwiltundefined 1 Reply Last reply Reply Quote 1
      • fcwiltundefined
        fcwilt @jens55
        last edited by

        @jens55 said in GET3D free give away free extruder.:

        Good point about vertical vs horizontal space requirements but the bit about a prototype (which it likely is since it was just released) seems a bit harsh.

        It's a "production unit" since it was shipped to a customer unless the customer knew he was getting a prototype, which he doesn't say in his post.

        Frederick

        Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

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

          Since it was a freebee, I don't think the strict thinking you are applying is entirely fair. I still think that other than the fan mounting plate, it is a very nice looking unit be it production or prototype. My only concern would be being locked into one supplier for spares which tends to get expensive quickly.

          fcwiltundefined 1 Reply Last reply Reply Quote 0
          • fcwiltundefined
            fcwilt @jens55
            last edited by

            @jens55 said in GET3D free give away free extruder.:

            Since it was a freebee, I don't think the strict thinking you are applying is entirely fair. I still think that other than the fan mounting plate, it is a very nice looking unit be it production or prototype. My only concern would be being locked into one supplier for spares which tends to get expensive quickly.

            You may be right but if I was trying to gain customers the first units I shipped for free would be the best I could produce.

            The issue about suppliers is a important one. I recently decided to try a Mosquito based on some research. It was pricey to be sure and who knows about the viability of the supplier. But it certainly is a first rate design and I am very pleased.

            Frederick

            Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

            1 Reply Last reply Reply Quote 0
            • nhofundefined
              nhof
              last edited by

              This is not a new design, it's a micron which have been around for a few years.

              I have one at work but with a more powerful hotend. The machining work is excellent and it performs well overall. I do prefer a dual drive like bondtech so I don't use it much.

              My only complaints are that wire management was obviously an afterthought and that the motor gets excessively hot during use unless I derate the amps quite a bit.

              fcwiltundefined 1 Reply Last reply Reply Quote 0
              • fcwiltundefined
                fcwilt @nhof
                last edited by

                @nhof said in GET3D free give away free extruder.:

                This is not a new design, it's a micron which have been around for a few years.

                So the one being offered for free is a copy of another companies work?

                Frederick

                Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                nhofundefined 1 Reply Last reply Reply Quote 0
                • 3mmundefined
                  3mm @jay_s_uk
                  last edited by 3mm

                  This post is deleted!
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                  • 3mmundefined
                    3mm @jay_s_uk
                    last edited by 3mm

                    @jay_s_uk said in GET3D free give away free extruder.:

                    Today I received a parcel in the post containing a Get3D extruder.
                    I've had a quick look over it but I don't want to pass judgement on it too soon.
                    In the meantime, I wanted to share some more detailed photos. I was sent the high temperature direct version, which is fitted with a 100w 24v heater cartridge and a 'K' type thermocouple.
                    IMG_20191205_180403.jpg
                    IMG_20191205_180415.jpg

                    @jay_s_uk

                    Hot damn! It is a sexy looking gadget. Let us know how it works?! As for power, we got lots power! Braided wires, built-in extruder, hi-temp hot-end...and small too..and some mass...

                    It is sexy.

                    3mm

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                    • nhofundefined
                      nhof @fcwilt
                      last edited by

                      @fcwilt More likely they're just distributing it under a different name. The original is made in Israel.

                      1 Reply Last reply Reply Quote 0
                      • Get3Dundefined
                        Get3D
                        last edited by

                        Hi everyone,

                        I have new 13:1 gear motor for 65.00 each They are great for z belt drive.20191217_164901.jpg 20191217_164852.jpg 20191217_164847.jpg

                        mrehorstdmdundefined 1 Reply Last reply Reply Quote 0
                        • mrehorstdmdundefined
                          mrehorstdmd @Get3D
                          last edited by

                          @Get3D Planetary gearboxes are usually not whole number ratios. What's the actual ratio?

                          What sort of full steps/mm will you end up with in a Z axis application?

                          https://drmrehorst.blogspot.com/

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

                            Seems to me that 13:1 is way too high a ratio to be useful for anything 3D printer related <shrug>

                            mrehorstdmdundefined 1 Reply Last reply Reply Quote 0
                            • mrehorstdmdundefined
                              mrehorstdmd @jens55
                              last edited by

                              @jens55 In the Z axis it's fine. I have 30:1 in the belt lifted Z axis of my printer, using a worm gear so the bed won't drop when the Z motor loses power.

                              13:1 may or may not be a high enough ratio to prevent bed drop. It will depend on the weight of the bed, friction, and the motor detent torque.

                              Planetary gear boxes don't usually have whole number ratios. That means that you probably won't be able to get nice, round whole-step movement values from the Z axis. You'll end up with a weird value like 158 um/whole step. It doesn't really matter - it will print fine, but the weird number can make it a little troublesome to calculate the number of layers in a given thickness of plastic. It's just a number, but that sort of stuff bothers me.

                              https://drmrehorst.blogspot.com/

                              1 Reply Last reply Reply Quote 0
                              • botundefined
                                bot
                                last edited by

                                I run 50:1 on my extruder, and for a short while I was considering going up to 100:1.

                                😊

                                *not actually a robot

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

                                  I don't get it ... my z runs at 1:1 and 400 steps (nominal) per mm. Even that exceeds the limits of the mechanics. So you don't like microstepping so I can see a 4:1 reduction gear which is fine for printing but likely limits your travel speed for moving the gantry up and down. I can see no reason to go to a higher gear ratio.

                                  Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                  • Phaedruxundefined
                                    Phaedrux Moderator @jens55
                                    last edited by

                                    @jens55 said in GET3D free give away free extruder.:

                                    I can see no reason to go to a higher gear ratio.

                                    @mrehorstdmd said in GET3D free give away free extruder.:

                                    so the bed won't drop when the Z motor loses power.

                                    Z-Bot CoreXY Build | Thingiverse Profile

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

                                      @Phaedrux , a 4:1 gear reduction would probably do the same thing for you but you could always introduce a small amount of friction, either constantly (easily overcome by the stepper motor) or when power to the z motors is shut off.

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                                      • DocTruckerundefined
                                        DocTrucker
                                        last edited by DocTrucker

                                        Constant reaistance to movement due to detent torque and gearing down is far easier to conrrol than constant friction. I've done belt z with no gear reduction and 4:1 and both drop with no power. Belt and worm is the next major mod for my P3Steels following on from 1mm pitch trapezoidal screw.

                                        Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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                                        • Get3Dundefined
                                          Get3D
                                          last edited by

                                          They are 5:1 same as the ones on the lulzbot. I only have very low stock right now but I can get more very soon.20191223_093847.jpg

                                          DocTruckerundefined 1 Reply Last reply Reply Quote 0
                                          • DocTruckerundefined
                                            DocTrucker @Get3D
                                            last edited by

                                            @Get3D said in GET3D free give away free extruder.:

                                            They are 5:1 same as the ones on the lulzbot.

                                            (5+2/11):1 According to your data sheet.

                                            Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                                            zaptaundefined 1 Reply Last reply Reply Quote 0
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