Hardware update os Duet 2



  • Hi,

    I am reading a lit of news about inminent reléase of Duet v3.... I am owner of Duet v2.... But for the usebi do to Duet v2, control a delta 3d printer i think i wont use 75% of new capabilities of New duet... But a new característica that can be VERY interesting its the new drivers, Trinamic 5160, that Duet v3 use
    There will be some posibility, with a bread prado, similar to Duet x2 or x5, that upgrade the Duet v2 drivers to Trinamic 5160?

    And in a close future, do you plan reléase a Duet v3 maestro or similar.... With a hardware cropped... For use it, only in printers?

    Thanks


  • administrators

    @peirof said in Hardware update os Duet 2:

    Hi,

    I am reading a lit of news about inminent reléase of Duet v3.... I am owner of Duet v2.... But for the usebi do to Duet v2, control a delta 3d printer i think i wont use 75% of new capabilities of New duet... But a new característica that can be VERY interesting its the new drivers, Trinamic 5160, that Duet v3 use
    There will be some posibility, with a bread prado, similar to Duet x2 or x5, that upgrade the Duet v2 drivers to Trinamic 5160?

    We don't plan on releasing a Duet 2 Expansion compatible board that uses the TMC 5160

    And in a close future, do you plan reléase a Duet v3 maestro or similar.... With a hardware cropped... For use it, only in printers?

    We are considering a version of the Duet 3 that uses lower current drivers such at TMC 2209.

    Thanks



  • Think i have read... Some where, in wiki or forum.... That Duet Board can use external drivers...

    This can be do it since now in Duet 2,with TMC5160?

    I can buy 4 TMC 5160 and use it with Duet v2? Out of the box? It will be necessary do some mod (hardware /software)



  • @peirof said in Hardware update os Duet 2:

    I can buy 4 TMC 5160 and use it with Duet v2? Out of the box? It will be necessary do some mod (hardware /software)

    no only 2 external steppers are supported, and you can only run them in standalone mode. (no software configuration of the steppers)



  • @Veti mmmm....

    At the very least, I would be interested in using the new drivers that Duet 3 uses, on my Duet 2 board .... Maybe through a bread board ...

    Think that drivers are the Heart of printer.. N





  • @Veti

    If I have not misunderstood the information on the Wiki .... Up to 5 drivers can be connected to the socket expansion .... E2, E3, E4, E5 and E6 .... No?



  • @peirof said in Hardware update os Duet 2:

    If I have not misunderstood the information on the Wiki .... Up to 5 drivers can be connected to the socket expansion .... E2, E3, E4, E5 and E6 .... No?

    yes you are correct. but tbh. why? TMC5160 in dumb standalone mode is not that great.


  • administrators

    @peirof it would be possible to make a custom expansion board that used the 50 way connector (similar to the Duex5, that had TMC5160s on it. If you wanted to control them over the SPI bus you would need to tweak the firmware (how much @dc42 would be able to say). My comment was that we did not intend to make this hardware.



  • @T3P3Tony said in Hardware update os Duet 2:

    (how much @dc42 would be able to say).

    he said that currently the tmc software driver is driver specific and can not handle different drivers on the same board.
    that would be some refactoring.


  • administrators

    Until something even better comes along, we're looking at standardising on TMC2209 drivers for up to 2A peak motor current, and TMC5160 for high currents. The TMC2209 has some features that the TMC5160 doesn't, and costs less. So we see TMC2209 as the best choice for small to medium 3D printers and small CNC machines, and TMC5160 for larger ones.

    The 32-bit board that Prusa has at last shown uses TMC2209, not TMC5160



  • Duet v2, what steppers include? TMC2660s? No?


  • administrators

    @peirof yes TMC2660 on the current designs dor the Duet 2 Wifi and ethernet. for new designs we are likely to use TMC5160 or TMC 2209



  • and how can know what steppers mount my Duet? Seeing board?



  • @peirof said in Hardware update os Duet 2:

    and how can know what steppers mount my Duet? Seeing board?

    only 2660 are used as of today for the duet 2.



  • @Veti said in Hardware update os Duet 2:

    @peirof said in Hardware update os Duet 2:

    I can buy 4 TMC 5160 and use it with Duet v2? Out of the box? It will be necessary do some mod (hardware /software)

    no only 2 external steppers are supported, and you can only run them in standalone mode. (no software configuration of the steppers)

    Is it possible to use a TMC driver as external stepper and program SPI from a different SPI source like a Raspberry? I mean Step/Dir/motor current from the Duet external connection, the SPI pins, which are in most cases on the top of the chip anyway, connected to the Raspberry with separate current (ground is shared), being programmed before the driver is used.


  • administrators

    @JoergS5 said in Hardware update os Duet 2:

    @Veti said in Hardware update os Duet 2:

    @peirof said in Hardware update os Duet 2:

    I can buy 4 TMC 5160 and use it with Duet v2? Out of the box? It will be necessary do some mod (hardware /software)

    no only 2 external steppers are supported, and you can only run them in standalone mode. (no software configuration of the steppers)

    Is it possible to use a TMC driver as external stepper and program SPI from a different SPI source like a Raspberry? I mean Step/Dir/motor current from the Duet external connection, the SPI pins, which are in most cases on the top of the chip anyway, connected to the Raspberry with separate current (ground is shared), being programmed before the driver is used.

    Motor current is also programmed via SPI.



  • @dc42 I meant the 4 wires to the motor.

    Is that scenario possible? I have my deficits in electronic knowledge, so I don't know whether this damages something.


  • administrators

    Yes, possible in theory. You would need to set the motor current as well as the other parameters from the Pi.



  • @dc42 Than you, I may try it and wanted to know whether it's possible in theory to connect it this way.


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