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    Anybody wants a stepper motor analyzer?

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    • zapta
      zapta last edited by

      TL;DR, If you a regular here and would like to purchase a stepper motor analyzer please let me know. I can do a small at-cost run of up to 10 units.

      The Raspberry Pico made headlines a few months ago so I decided to try porting the Simple Stepper Motor analyzer to it, and am happy with the results, so decided to have a small at-cost run of up to 10 units for regulars here that are interested.

      This is a more compact design than the previous one, with a single PCB and components on one side and LCD screen on the other. Capabilities are the same but with possibly smoother display due to the larger RAM and faster CPU.

      The cost per unit is $30 + actual post office fee to ship to your location from the US (It's expensive, can be $30+ to Europe), payment via Amazon gift card (can purchased online) at the time of shipping.

      Note that I don't make any profit, give my time for free, and just hope to be reimbursed for the out of pocket expenses so please adjust your expectations regarding warranty and such 😉

      BTW, if you want do built it yourself, including commercially, this design is in the public domain and I hope to release the files and documentation in 2-3 weeks. (electronics, firmware, 3D models and user guide)

      The 3D printed enclosure is not included and you will have to print it yourself. I will try to include the M2.5 threaded inserts.

      IMG-2804.JPG

      IMG-2821.jpg

      IMG-2822.jpg

      IMG-2824.jpg

      Tinken jay_s_uk martin7404 bricor alankilian 10 Replies Last reply Reply Quote 6
      • Tinken
        Tinken @zapta last edited by

        @zapta interested

        1 Reply Last reply Reply Quote 0
        • jay_s_uk
          jay_s_uk @zapta last edited by

          @zapta me too

          Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF

          1 Reply Last reply Reply Quote 0
          • martin7404
            martin7404 @zapta last edited by

            @zapta interested

            Muldex IDEX 3d printer Duet2+Duex5+Paneldue 7i
            Custom CoreXY 600x400 Hemera , Duet3+toolboard v1.1, Paneldue 7i
            Mod Sapphire Pro with Duet2 ,Expansion Board with closed-loop motors
            voron v0.1 and cr10s both running klipper;stock MK3;FF Guider 2s

            1 Reply Last reply Reply Quote 0
            • bricor
              bricor @zapta last edited by

              @zapta interested

              1 Reply Last reply Reply Quote 1
              • fcwilt
                fcwilt last edited by

                Sign me up for 4 units, please.

                Frederick

                Printers: A FT-5 with the 713 upgrade bits. A custom MarkForged style. A small Utilmaker style and a CoreXY from kits. Various hotends. Using Duets (2 and 3) running 3.4.1

                1 Reply Last reply Reply Quote 1
                • alankilian
                  alankilian @zapta last edited by

                  @zapta I would love to have one.
                  Thank you for doing this.

                  SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                  1 Reply Last reply Reply Quote 0
                  • Nuramori
                    Nuramori @zapta last edited by

                    @zapta I’m in.

                    1 Reply Last reply Reply Quote 0
                    • paralepsis
                      paralepsis @zapta last edited by

                      @zapta Interested!

                      D-Bot w/ Duet 2 WiFi & RRF 3.2, Makerbot R2X w/ Duet 2 WiFi & RRF 3.3

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

                        @zapta I would like one also please. I inquired about 3 months ago via chat

                        1 Reply Last reply Reply Quote 1
                        • Luke'sLaboratory
                          Luke'sLaboratory last edited by

                          I'd like one too

                          Luke
                          http://lukeslab.online

                          zapta 3mm 2 Replies Last reply Reply Quote 0
                          • zapta
                            zapta @Luke'sLaboratory last edited by

                            Thanks everybody for the interest. I order parts for 10 units. Will allocate them according to the order in this thread (one per person unless they will be spares).

                            If there will be more demand, I can do one or two small runs later. This is the first time I order PCBs with SMD service so prefer to keep it small.

                            The out of pocket expense for the parts (including shipping, taxes, etc) is indeed ~$30 and the pie chart shows the breakdown. As you see the 3.5" display with capacitive touch dominates the cost and prices went up recently due to the global shortage.

                            All parts were ordered from China, including the Pico which is currently hard to find at its nominal $4 price (Digikey has only 2 left, Amazon sell for $8 and up).

                            48975932-7659-4c60-a65a-83ff49f75a23-image.png

                            alankilian 1 Reply Last reply Reply Quote 1
                            • alankilian
                              alankilian @zapta last edited by

                              @zapta If your out-of-pocket costs are $30 I'd like to send you $60 plus shipping for the unit.

                              Thank you again for designing, documenting and publishing the design of this unit.

                              SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                              zapta 1 Reply Last reply Reply Quote 1
                              • zapta
                                zapta @alankilian last edited by

                                Thanks @alankilian, I really appreciate it.

                                This falls into my hobby part of my life so my time if free and I enjoy it, not to mention giving back for all the help I have got here.

                                😉

                                BTW, here is the Kidcad render of the PCB. The non populated components are not needed and were added to assist with the software development. The most difficult to solder are the two 0.5mm pitch flex cable connectors. I did solder them on the prototype but it was a pain (they bridge easily), so in this batch they will be soldered by the PCB vendor (JLCPCB), together with other components they stock. They don't have the Pico and the current sensor so I will solder them (easy) and so are the two connectors which need to be assembled in a certain way so they don't get shorted by the LCD on the other side.

                                stepper_analyzer.png

                                1 Reply Last reply Reply Quote 1
                                • Sotidii
                                  Sotidii last edited by

                                  I'd like one too

                                  1 Reply Last reply Reply Quote 0
                                  • CCS86
                                    CCS86 last edited by

                                    It sounds like the first run might be sold out, but I am interested too.

                                    What other features does it provide, besides the steps/s shown?

                                    1 Reply Last reply Reply Quote 0
                                    • akstrfn
                                      akstrfn last edited by

                                      Count me in when you go for the second run 🙂

                                      zapta 1 Reply Last reply Reply Quote 0
                                      • zapta
                                        zapta @akstrfn last edited by

                                        JLCPCB rejected the PCB order since one of the footprints was incorrect. I fixed it and increased the order to 20 PCBs. This run will still be of only 10 units (only 10 LCDs and Picos on order) but it will be easier to make the next 10.

                                        This is the first order with this PCB layout so I don't want to commit to too many before validating it.

                                        droftarts dc42 2 Replies Last reply Reply Quote 1
                                        • rtuinila
                                          rtuinila last edited by

                                          I would like one too!

                                          1 Reply Last reply Reply Quote 0
                                          • droftarts
                                            droftarts Moderator @zapta last edited by

                                            @zapta great work, well done. I’m waiting for @T3P3Tony to put my one of the old version together! I think we’re still waiting for the screen. A more commonly-available one would be good; maybe a PanelDue with different firmware?!

                                            Ian

                                            Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

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

                                              @zapta I would like one too.

                                              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

                                              fma 1 Reply Last reply Reply Quote 0
                                              • fma
                                                fma @dc42 last edited by

                                                I think the first batch is already gone, but if you go for a second batch, I would like to order one analyser.

                                                Thanks!

                                                Frédéric

                                                zapta 1 Reply Last reply Reply Quote 0
                                                • zapta
                                                  zapta @fma last edited by

                                                  If everything will go as expected (JLCPCB assembling most of the components), it shouldn't be too difficult for me to assembled them and I should be able to make larger batches. Let's see how the first batch of 10 will go and if they will work well.

                                                  BTW, it's a bank holiday here today so I updated and released all the files https://github.com/zapta/simple_stepper_motor_analyzer . The enclosure was designed on Onshape and it makes it very easy to share an interactive 3D model with export capabilities. https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/194a8feb7fe55d4b68b92318/e/96371cb25b019416be0a198b

                                                  Egon.Net 1 Reply Last reply Reply Quote 0
                                                  • Egon.Net
                                                    Egon.Net @zapta last edited by

                                                    @zapta could it be used to tune spreadcycle parameters?

                                                    1 Reply Last reply Reply Quote 0
                                                    • Dudek23
                                                      Dudek23 last edited by

                                                      @zapta I would like one too

                                                      dc42 1 Reply Last reply Reply Quote 0
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