Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Duet controlled micro mill

    Scheduled Pinned Locked Moved
    My Duet controlled machine
    8
    32
    4.0k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • 3DPMicroundefined
      3DPMicro @JoergS5
      last edited by

      JoergS5,
      Thanks for the info on the patent.
      How big are you going to build your mill?

      Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

      JoergS5undefined 2 Replies Last reply Reply Quote 0
      • JoergS5undefined
        JoergS5 @3DPMicro
        last edited by

        @3DPMicro It's in the idea project phase, so no detailed plans yet. But my highest priority will be precision with a small build space (maybe 50 mm in each direction).

        1 Reply Last reply Reply Quote 0
        • JoergS5undefined
          JoergS5 @3DPMicro
          last edited by

          @3DPMicro My special interest would be to mill small parts like

          • nozzles like matchless nozzles or SuperVolcano and hotends/heatbreaks for them
          • milling tools/cutters for bigger wood or metal CNC spindles
          • bigger parts like harmonic drive splines
          • producing ball bearing DIY would be nice too (just for fun)
          • parts for my Märklin Z trains (they are 1:220 train models)

          My general tought is to combine addititive with subtractive manufacturing and make a quality iteration: e.g. 3D print/metal casting/injection molding, then finish by routing/honing/sandblasting. Control product by comparing with the original model and iterate until the goal is reached.

          3DPMicroundefined 1 Reply Last reply Reply Quote 0
          • 3DPMicroundefined
            3DPMicro @JoergS5
            last edited by

            @JoergS5 it's ,for sure, a good thing we have the Duet along with the work of David and Tony (and whoever else contributes). Now our imaginations aren't so much constrained by money. With the 2 and now the Duet 3 the sky is the limit on functions. Sounds like many of your projects will require turning as well as 4th axis milling. I'm in the process of retrofitting a pretty good-sized manual lathe to CNC using a Duet 2.

            Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

            JoergS5undefined 1 Reply Last reply Reply Quote 0
            • JoergS5undefined
              JoergS5 @3DPMicro
              last edited by JoergS5

              @3DPMicro Would be nice if you create threads about your lathe rebuild here also, as I am sure you have a lot of experience with precision production.

              I agree that the Duets are great. I bought them primarily not because of the properties of the board, but because of the good support of firmware and nice, friendly, helpful forum.

              3DPMicroundefined 1 Reply Last reply Reply Quote 0
              • 3DPMicroundefined
                3DPMicro @JoergS5
                last edited by

                @JoergS5 said in Duet controlled micro mill:

                @3DPMicro Would be nice if you create threads about your lathe rebuild here also, as I am sure you have a lot of experience with precision production.

                I agree that the Duets are great. I bought them primarily not because of the properties of the board, but because of the good support of firmware and nice, friendly, helpful forum.

                I will probably do something similar with the lathe as I have done here with the mill. There doesn't appear to be much in the way of Duet controlled lathes so maybe I will be a bit more thorough with the steps involved. Should be relatively simple since it's only 2 axis but live tooling and/or tool changes will be something I want to incorporate

                Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                1 Reply Last reply Reply Quote 0
                • kzamaniundefined
                  kzamani
                  last edited by

                  @3DPMicro This build looks really great! Is there any chance I could take a peak at a BOM or exploded view? I've been wanting to build something like this for machining watch cases / main plates but I haven't found the time.

                  Thanks!
                  -k

                  3DPMicroundefined 1 Reply Last reply Reply Quote 0
                  • 3DPMicroundefined
                    3DPMicro @kzamani
                    last edited by 3DPMicro

                    @kzamani said in Duet controlled micro mill:

                    @3DPMicro This build looks really great! Is there any chance I could take a peak at a BOM or exploded view? I've been wanting to build something like this for machining watch cases / main plates but I haven't found the time.

                    Thanks!
                    -k

                    I didnt create a BOM because it was fairly simple. Each axis is a self contained Misumi linear actuator. They are designed to stack to create a cartesian motion system. Mine are LX2001-100 (38mm travel) for the Y axis and LX2001-150 (88mm travel) for X, Z axis'. All are 1mm lead ball screws "P" precision grade for no backlash. The LX2005 would still provide high resolution (5mm lead ball screws) with .9 nema 17 steppers and afford faster rapids. Mine are 1.8 nema 14's on the X and Y and a .9 nema 17 on the Z. LX25's or 30's would also be a good choice as well as THK/NSK equivalents. The frame is made from 3" square steel bar machined to 75mm square. There is a decent amount of machine work to get them in a suitable state for a square and accurate CNC machine. I surface ground the critical surfaces but that isnt totally necessary. I also designed in some versatility to allow longer Y travel and separate linear rails and ball screw for the Z axis. End stops are OMRON E2EC-CR5C1 proximity switches which are deadly accurate.
                    If you want to duplicate exactly what I did I will put the CAD model up.
                    MM CAD SNIP.jpg
                    This temporary solution for keeping the machine clean has worked well so I doubt I'll change it
                    20191107_211106.jpg

                    Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                    1 Reply Last reply Reply Quote 1
                    • mark92undefined
                      mark92 @3DPMicro
                      last edited by

                      @3dpmicro Sorry to reply to this old thread but I find this build to be awesome, so simple yet super high precision, I wonder if is posible to see a video of it in action? I am a watchmaker student doing research for building a cnc mill and this one has to be the best approach I have ever seen, thanks in advance!

                      1 Reply Last reply Reply Quote 1
                      • 3DPMicroundefined
                        3DPMicro
                        last edited by 3DPMicro

                        The Duet 2, with regularily updated FW has been flawless through many projects over the last few years guiding this little mill. I have the same confidence in it as any of the professional grade machines I run at work.
                        I thought if it could be tripped up the g code for 3d maching the .5mm radii on this part would do it. Resolving moves as small as 100nm for the inside corners there was no indication of lost steps or rounding errors (the floating point goes that low?) over the 8 parts that were made. Pretty cool
                        https://youtu.be/27_E8RawCyQ
                        There were 0 hiccups and 0 errors but underruns showed 0,0,4. What does that mean?

                        Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                        JoergS5undefined 1 Reply Last reply Reply Quote 3
                        • JoergS5undefined
                          JoergS5 @3DPMicro
                          last edited by JoergS5

                          @3DPMicro said in Duet controlled micro mill:

                          rounding errors (the floating point goes that low?

                          float is built by three parts: the sign, then the digits with 7 to 8 digits precision (the 7 to 8 digits of the 10 base decimal system) and an exponent with high range (1e-38 to 1e38), so it doesn't make a difference between mm or nm. Most values will be rounded.

                          For your 0,0,4 underrun message, I searched the code. in DDARing.cpp Diagnostics() is the code, the three variables are
                          numLookaheadUnderruns, numPrepareUnderruns, numNoMoveUnderruns

                          In DDARing.h are some explanations about the meaning:
                          unsigned int numNoMoveUnderruns; // How many times we wanted a new move but there were none

                          so this seems to be not a serious error. I am not sure about the reason, but I can think of rounding errors or queue not being filled fast enough.

                          3DPMicroundefined 1 Reply Last reply Reply Quote 0
                          • 3DPMicroundefined
                            3DPMicro @JoergS5
                            last edited by

                            @JoergS5 thanks for the explanation and feedback. I wont concern myself with it but will monitor it for the sake of better understanding what might effect it

                            Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                            1 Reply Last reply Reply Quote 0
                            • 3DPMicroundefined
                              3DPMicro
                              last edited by

                              ![20230205_220659.jpg](/assets/uploads/files/1701318298445-20230205_22020230108_134220.jpg 659-resized.jpg) !20230205_220941.jpg

                              Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                              1 Reply Last reply Reply Quote 0
                              • 3DPMicroundefined
                                3DPMicro
                                last edited by

                                20230317_170108.jpg 20230205_220659.jpg

                                Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                                1 Reply Last reply Reply Quote 3
                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by

                                  very nice! ...what is it?

                                  Z-Bot CoreXY Build | Thingiverse Profile

                                  3DPMicroundefined 1 Reply Last reply Reply Quote 0
                                  • 3DPMicroundefined
                                    3DPMicro @Phaedrux
                                    last edited by 3DPMicro

                                    @Phaedrux Its a retractable ID badge holder that goes on your belt with places to attach a zip drive and random number generator dongle. Grade 5 Titanium, Delrin and spring steel
                                    Made on a wire EDM, Duet 2 controlled Lathe and my Duet 2 controlled micro mill

                                    Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

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

                                      I was going to guess fishing reel. 🤣

                                      Z-Bot CoreXY Build | Thingiverse Profile

                                      1 Reply Last reply Reply Quote 0
                                      • JoergS5undefined
                                        JoergS5
                                        last edited by JoergS5

                                        @3DPMicro said in Duet controlled micro mill:

                                        Its a retractable ID badge holder that goes on your belt with places to attach a zip drive and random number generator dongle. Grade 5 Titanium, Delrin and spring steel
                                        Made on a wire EDM, Duet 2 controlled Lathe and my Duet 2 controlled micro mill

                                        I thought that it is an accurate scale, with compliant parts left and right, the big wheel being the indicator.

                                        Nice quality!!

                                        1 Reply Last reply Reply Quote 0
                                        • 3DPMicroundefined
                                          3DPMicro
                                          last edited by 3DPMicro

                                          I can see it being a real hard guess 😁
                                          The dies to form the springs were finish machined on the mill with a .5mm ball endmill, too.
                                          https://youtu.be/27zb8gcqGPA?si=suV_zfw9h41iTjDT
                                          I posted this above already but this is what the part was for https://youtu.be/27_E8RawCyQ?si=GDXWU7Ujmx36qK8a

                                          Duet controlled Lathe, micro mill, 3d printer and 1992 Haas VF2 VMC

                                          1 Reply Last reply Reply Quote 0
                                          • 3DPMicroundefined 3DPMicro referenced this topic
                                          • First post
                                            Last post
                                          Unless otherwise noted, all forum content is licensed under CC-BY-SA