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    issyvarsano
    @issyvarsano
    @propcoder:matrix.org yes , only 4 cables are needed , the stmbl does not support battery for the abs encoder
    abd be aware that with abs. encoder in case of long cables you can have interference and packet loss
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    They where working with other servo drives
    Docs show (while I am not sure) that these are data and clock pairs
    Maybe this pic explains that I need to connect those pairs in parallel. I think battery is connected to yet another wire, not available at the drive connector
    issyvarsano
    @issyvarsano
    yes
    you need sd+ , SD- +5V and gnd
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    So, leave clock unconnected?
    issyvarsano
    @issyvarsano
    there is no clock on the tamagawa protocol
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    Ok, I will try
    issyvarsano
    @issyvarsano
    the speed is fixed to 2,5 mb/s
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    Thank you, @issyvarsano it works!

    I noticed a difference in two docs:
    Nm/A
    psi = (Nm/A) / 3.0 * 2.0 / #POLE_PAIRS

    Nm/A
    psi = (Nm/A) / 2.0 * 3.0 / #POLE_PAIRS

    And it would be better to use brackets

    Getting started and motor parameters
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    Wrong scales?
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    com_test with 23bit smartabs encoder
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    I modified smartabs.c and now it looks ok. It seems that it was coded for 17bit abs. encoders
    issyvarsano
    @issyvarsano
    @propcoder:matrix.org yes , it is coded for 17 bit
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    Do you know which formula is correct?
    issyvarsano
    @issyvarsano
    psi = (Nm/A) / 3.0 * 2.0 / #POLE_PAIRS
    Marius Alksnys
    @propcoder:matrix.org
    [m]
    How to find a Qt based UI tool for stmbl?
    issyvarsano
    @issyvarsano
    bobkermann
    @bobkermann
    Hello, I would like to make these controllers for a simulator project with servomotors. I have already made my own PCBs so I already know the basics of kicad and soldering but do you have updated Bom or PCBs already populated?
    boerderpatrol
    @boerderpatrol
    I would recommend using cheap Chinese servos for a completely new design. Right now many of these parts are difficult to find and the complexity of the stmbl is really only warranted in retrofit projects, with a preexisting machine you want to get running.
    I have the 750 watt version of these. They are plug and play. Rs-485 and step direction. $650 a piece sounds like a lot for a diy project but you will spend a lot more time sourcing stmbl parts, finding a suitable motor, waiting on assembly or performing the extremely difficult task of assembling on your own.
    bobkermann
    @bobkermann
    interesting, but in fact my project starts from an existing simulator from "ECA FAROS" so I already have all the mechanics and servomotors perfectly adapted. I just need the drivers. so it's a retrofit in some way. I haven't started yet but I'm exploring all the possibilities.
    boerderpatrol
    @boerderpatrol
    Cooooooool
    Then maybe suitable.
    Is it a slight simulator or driving?
    Flight*
    bobkermann
    @bobkermann
    It's a truck drinving simulator. but the mobile platform is so huge that I'm thinking of redesigning things on it.
    I was thinking of buying the pcb's from pcbway or other Chinese manufacturer with the stencils. the IRAM256 are still available from rochester. i wanted to know if anyone has ever made an updated BOM. there is BOM on this thread from 2017.
    Seppo Pietarinen
    @spietari
    @bobkermann how does the simulator connect to the servo drives?
    bobkermann
    @bobkermann
    Originally the simulators was composed of the mobile platform and a a separate electrical cabinet containing the computers and motors drivers. I don't have the cabinet so I have to reconnect to the original motors (NX 430 from PARVEX) for the software there are some software to extract the data from public games and to control in step-dir motors.
    Seppo Pietarinen
    @spietari
    Very similar to what I've been doing but with flight sims
    boerderpatrol
    @boerderpatrol
    I have 12 drives I would like to sell, I’m gonna swap the motors on my robot, it’s a more straightforward approach. So I have 12 drives, 10 or so blank boards, 6 irams with right pins and 6 with straight pins and a grab bag of smt parts, I also have a Mesa 7i80 db and a 7i74. Asking $3500 for all of it.
    I’ll be posting it on eBay for that price in the next day or two.
    boerderpatrol
    @boerderpatrol
    I’ll post it on eBay in the next day or two.
    roguish
    @roguish:matrix.org
    [m]
    @boerderpatrol: are they STMBL drives? if so, how old? who made them? what version? etc, etc, all the details possible.
    @boerderpatrol: also, there is a 'user exchange' section in the Linuxcnc forum. you could post it all there.
    boerderpatrol
    @boerderpatrol
    Yes they’re version 4.4 6 of the drives were made in China and assembled by Andy I think? 6 were made in China and have not been fully assembled just populated boards ready for the irams and capacitors
    So actually subtract 6 irams they’re for the drives that haven’t been fully assembled.
    I think 6 of the drives were made in 2016 and the others were made 2020
    bobkermann
    @bobkermann
    very interested too. even by the pcb populated without irams.
    boerderpatrol
    @boerderpatrol
    Well yeah they’re ready to go just solder in the irams and the capacitors, I have it all in the lot.
    You could call it the SuperStmblValuePack
    One of the assembled drives is bad but I have a fully populated board to replace it not part of the 12 pack