Adamj12b

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  • September 30, 2016 at 12:10 pm in reply to: Tiny g maximum pulse rate #9929
    Adamj12b
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    I have found an answer to my own question after digging threw the source.

    The G1 (TinyG) firmware is capable of a maximum 50khz step output.

    The G2 firmware is capable of at least 200khz and I have seen comments in the source that looks like it could be pushed all the way to 400khz.

    -Adam

    September 28, 2016 at 7:03 am in reply to: Tiny g maximum pulse rate #9927
    Adamj12b
    Member

    Hello cmcgrath5035,

    I am not looking for closed loop control. The ac servos I am using have their own controllers that are just looking for step and direction signals. The issue is they are very high revolution and thus require a very fast pulse rate to achieve high speeds. The machine currently needs 20940 steps to move 1 inch. In order to achieve the 900ipm, the current FPGA interface has a 317khz pulse rate. I am looking to convert the machine to a tiny g in order to use some software that only interfaces to a tiny g. I’m sure it will be slower, but I am trying to figure out a rough speed it will be capable of.

    -Adam

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