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    is that possible to make the mini version of duet wifi

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    duet wifi duet mini
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    • Danalundefined
      Danal
      last edited by

      If you are trying to save COST, take the proven (open source) design for the board, have it fabricated, and populate only the things you are going to use. Just leave the other stuff empty. That MIGHT be cheaper than just ordering a board. Depends very heavily on the import/tax costs of having a board fabbed and getting the actual parts.

      If you are trying to achieve PHYSICAL MINIATURIZATION count on going through multiple design cycles. It is do-able, but it will ultimately cost much more than just buying a board (even with taxes, etc).

      What is your goal?

      Delta / Kossel printer fanatic

      felix_ardyansyahundefined 1 Reply Last reply Reply Quote 0
      • felix_ardyansyahundefined
        felix_ardyansyah @Danal
        last edited by felix_ardyansyah

        @danal yeah i want to make smaller and mybe cheaper one if i can, you forget that i say remove the ext opt full sd card not the micro sd card that already solder in the board about tax and shiping umm i live in asia the tax and shiping is very expensive for big board (i can buy cloned, but for fun i made this project and they dont have gerber file soo i cannot make the pcb i must remake the schematic)

        and about programing i dont change any pin just the hadware my mod is not to made zero change in firmware (becouse i dont understand how to coding)

        +about his project is that mybe i will use my design but if i quit somebody can copy that and improve it
        and mybe someone love full sd card but i not

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

          In my opinion, the Duet schematic designs are very versatile and allow even making DIY boards, bellow is my prototype based on SAM4E:

          0_1552027878313_board1.jpg

          I also consider making a mini board that can fit in the base of a small Delta printer:

          0_1552027912207_board_mini.jpg

          felix_ardyansyahundefined 1 Reply Last reply Reply Quote 0
          • felix_ardyansyahundefined
            felix_ardyansyah @A Former User
            last edited by

            @mitko hey umm what buck regulator that you use i see you regulator quiet small im is fuck up in finding the best regulator

            this the best that i can found
            https://lcsc.com/product-detail/DC-DC-Converters_Texas-Instruments_LMR16030PDDAR_Texas-Instruments-TI-LMR16030PDDAR_C90665.html
            from ti

            but the problem is that there is en pin soo it need high in that pin mybe i just drive vcc to that pin the schematic (datashet is lacking)

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

              @felix_ardyansyah, It uses TPS5430DDA, but in general, I am not happy with Texas Instruments products. There is a question if in a minimal system buck converter is need it at all or just some LDO should not be used. Those are design preferences that make the identity of a product, also it is a question about relation with semiconductor manufacturer, whether they provide warranty to their products, proper handling of problems etc.
              I do noticed also another complain about the price of Duet boards. Not so sure about Indonesia, but in Europe the products sell on the market suppose to have warranty. This warranty must be covered by the manufacturer. So, in general those ideas that many Asians and Americans have that can just make some boards and take the customers money without proper support and warranty – do not work well on the European market.
              One suggestion, read you are 15 year old – go to proper school if you think that you can make a good product without proper education, just by discussing some matters on the forum – very unlikely.

              felix_ardyansyahundefined 1 Reply Last reply Reply Quote 0
              • felix_ardyansyahundefined
                felix_ardyansyah @A Former User
                last edited by

                @mitko yeah i know and in indonesia is hard to find that school (becouse in my area is i would say lacking there exis but for electricty instalation and yeah you probabily right

                +i found buck that not perfect but noot to bad xl semi

                +i dont make decent product it just proof of concept beside that if someday that i learn in universty atlesh i know something from get go

                +you board is soo small umm soo somebody is already make mini version (facepalm)

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                • felix_ardyansyahundefined
                  felix_ardyansyah
                  last edited by

                  0_1552068106820_Schematic_duwi-mini_XY-STEPPER-DRIVER_20190309004942.png

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

                    The main problem with designing a buck regulator is to keep the EMI low so that the printer can meet CE regulations. For a home built board that's not for resale that's not essential, so it's easier just to buy a 5V regulator module on eBay.

                    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

                    A Former User? 1 Reply Last reply Reply Quote 0
                    • Danalundefined
                      Danal @felix_ardyansyah
                      last edited by Danal

                      @felix_ardyansyah said in is that possible to make the mini version of duet wifi:

                      @danal yeah i want to make smaller and mybe cheaper one if i can, you forget that i say remove the ext opt full sd card

                      Ahh. Your are talking about eliminating the CONNECTOR, and the board real estate, for the external SD. Got it.

                      .

                      Still recommend you decide if your PRIMARY goal is "smaller" or "cheaper". I say this because those goals are in direct conflict:

                      • The very cheapest will be to fab a board exactly from the published Eagle .brd files/gerbers (or hand wire, like Mitko shows) and populate a subset. Pretty much guaranteed to work the first time.

                      • The very smallest will be to redraw everything in a circuit board cad package, savagely eliminating anything you don't think is needed for the mini. Getting this to work will take time and repeated experiments that will not be cheap. Not at all.

                      And, as an aside, for circuit board cad, you might try either "Design Spark PCB" (free download). I find it much easier to use than Eagle. Or "EasyEDA" (free online). I haven't decided if I like EasyEDA yet.

                      Delta / Kossel printer fanatic

                      1 Reply Last reply Reply Quote 0
                      • A Former User?
                        A Former User @dc42
                        last edited by

                        @dc42, You raised an interesting topic. In Europe we have to comply with different engineering regulations, while those Asians flood the market via eBay, Aliexpress etc. with garbage, unapproved by local regulatory organizations products.

                        I have RAMPS 1.4 board with melted connectors etc. Also there are issues with different step motor drivers. It is not matter just about the DC-DC regulators etc.

                        Perhaps I would have to remain all of you that those electronics drive heaters, motors etc. Those things can cause damages, without proper education it is not recommendable at all to deal with those matters. In some locations in the Commonwealth realm, it is even prohibited by law to do engineering activities unless a member of the engineering regulatory organization.

                        felix_ardyansyahundefined 1 Reply Last reply Reply Quote 0
                        • felix_ardyansyahundefined
                          felix_ardyansyah @A Former User
                          last edited by

                          @mitko about that im not make from scratch thoo im just copying from the original schematic remove that is not importad like ext conector if im remake from scrach im just kill myself

                          dc42 yeah i know i can use the original but it very pretigius ic (2$ and 6 pcs ava) and if somebody want beter one just change what they like and even beter

                          danal im try the design spark but (i dont like it) easy eda have dekstop version you can download it (i dont use the web version if my internet goes bad i cannot do anything)

                          about i want the smallast and cheapest
                          i want the smallest but i encounter some ic that no exspensive and bad performance for their price like mosfet that i want to change to the beter one

                          this mosfet that duet use
                          https://lcsc.com/product-detail/MOSFET_Infineon-Technologies__Infineon-Technologies-IPD036N04L-G_C152354.html
                          in nutshell
                          MOSFET N Trench 40V 90A(Tc) 2V @ 45uA 3.6 mΩ @ 90A,10V TO-252-2(DPAK) RoHS
                          price
                          1 x $1.3809
                          10 x 1.3443

                          the chip that i want to use
                          https://lcsc.com/product-detail/MOSFET_TOSHIBA_TPHR9003NL-L1Q_TOSHIBA-TPHR9003NL-L1Q_C129784.html
                          in nutshell
                          MOSFET N Trench 30V 60A 2.3V @ 1mA 0.9 mΩ @ 30A,10V SOP-Advance-8 RoHS
                          price
                          1 x $0.902
                          10 x $0.6714

                          reduce some penny but with beter componen

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                          • felix_ardyansyahundefined
                            felix_ardyansyah
                            last edited by

                            mybe i cancel the project becouse they will release the duet 3 with a nice set of feature but still in demo umm can we have spoiler dc42 please(joke) and they make board smaller and compact not to compact but hey

                            mybe they have usb c i hope
                            mybe flasdisk support in duet 4

                            mybe i will remove the topic when they release theduet or 2 or 3 day after my coment

                            +mitko about ramp they use same schematic as everyone but they use lower componen quality if you search in shenzen market there a lot of electronic component spart, the chinese manufacture is cheap many componen in may level like thickness of pcb (the copper 2oz to 1oz) the terminal screw in the lower side 20 to 10 a, in europe you need proper education but really im not design a commercial product it just for hooby and im just share with you with the warning but really dude like hobbyis like me cannot design boost buck regulator becouse safety something will explode and radiation in the forum we stuck with arduino board and ne555 timer(but everyone have brain you dont need electric education to tell that componen is good or bad)(and did you reliase how many people in my age love electronic i tell you rare)

                            many people forget this is just hooby project not production level i mean people like me this a big deal if all knowledge behind paywall and you not sure you will get it or not, im know im need proper education when your favovite education is behind paywall and age, im not super cheap guy but i pay will pay for something that worth it and i fully understand why they charge for it, after all all you need is piece of paper

                            im know that is rant but you can take it as grain of salt ot not

                            but still thank you for your help everybody i learn lot today how to design and what safety regulation

                            +safety regulation sometime save life or grab your money but mostly safe your life

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                            • felix_ardyansyahundefined
                              felix_ardyansyah
                              last edited by felix_ardyansyah

                              and thank you who read this topic 400 people i hope you learn from this topic

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