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Thread: New Stepper Motor Library

  1. #76
    Senior Member
    Join Date
    Apr 2014
    Location
    Germany
    Posts
    459
    I just released version 2 of TeensyStep on GitHub

    New features:
    • Improved rotational mode
    • Possibility to override speed and acceleration of a group of motors on the fly (rotational mode only)
    • Access to the current speed of the controllers
    • Callback when a target is reached
    • Additional examples


    I also started a small documentation page which can be found here: https://luni64.github.io/TeensyStep/

  2. #77
    Junior Member
    Join Date
    Nov 2013
    Posts
    17
    Hi Luni
    I wonder if you could give me some advice on my project?
    I have a carriage on a 6m long guide. The carriage is pulled by a 8Nm stepper power by a 48v supply. The stepper has a 1:2 reduction and the looped belt has a ratio of 1:0.6. The carriage will move about 400mm per revolution of the motor.
    The objective:
    I have to accelerate the carriage in the first 2m to 8m/s then maintain that for 2m and then decelerate for the last 2m. This is done both ways.

    I am having problems conceptualizing how to use the library to achieve this. If the acceleration could be specified for a distance or a duration, then it could be done.
    Any suggestions will help please.

  3. #78
    Senior Member
    Join Date
    Aug 2014
    Posts
    165
    @luni — just wondering if the library will work with the new Teensy 4.0

  4. #79
    Senior Member
    Join Date
    Apr 2014
    Location
    Germany
    Posts
    459
    Sorry, not yet. The timers of the T4 behave differently from those of the T3s. So, I need to rethink a few concepts to utilize the speed of the T4 which will take some time.

  5. #80
    Senior Member
    Join Date
    Aug 2014
    Posts
    165
    Thanks @luni — I guess in real terms the library doesn’t really need the power of 4.0

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