Brand new TinyG Yaxis broken already???

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  • October 27, 2019 at 3:19 pm #11632
    MonkeyManGuy
    Member

    When configuring my TinyG setup I was able to get both of the 2 stepper motors I am using to work properly. X and Y axis. I set maximum speeds, set the amperage draw, micro stepping, etc all according to the directions. Everything worked as it should with both motors responding propely to everything.

    Now about 2 days later the motor on my Y-axis would not turn. I tried readjusting the amps and tried turning it with G0 and G1 commands. It just makes a buzzing noise as if it had an amperage issue.

    I decided to plug it into the Z axis and it began working properly. Indicating that the Yaxis port is broken. Is this sort of thing common on TinyG’s that have yet to run in a machine?

    • This topic was modified 5 years ago by MonkeyManGuy. Reason: Added email response notifications :)
    October 27, 2019 at 3:44 pm #11634
    cmcgrath5035
    Moderator

    I would be suspicious of wiring, specifically the fine wire connections between stepper motor and whatever connector system you are using (“I decided to plug it into the Z axis…..”).

    Driver devices do fail, but not frequently and usually due to overheating.
    Does not sound like that should be an issue.

    October 27, 2019 at 4:45 pm #11636
    MonkeyManGuy
    Member

    cmcgrath5035,

    I am using the screw terminals with the standard 4 wire connectors that come with stepper motors. If the connectors were the issue then I believe it would have had the same issue when operating on the Zaxis, would it not?

    I will try plugging (screwing) the Xaxis motor into the Yaxis to test this.

    October 28, 2019 at 9:26 am #11637
    cmcgrath5035
    Moderator

    I am using the screw terminals with the standard 4 wire connectors that come with stepper motors. If the connectors were the issue then I believe it would have had the same issue when operating on the Zaxis, would it not?

    Generally speaking, I would agree with your statement. It s rather easy to fracture the very fine wires connecting most steppers. It is also easy to clamp down on the insulation , rather than the wire, when inserting using the screw terminals.

    I converted to using ferrules for steppers a long while back

    November 3, 2019 at 8:48 am #11639
    ril3y
    Keymaster

    Also, if you are adjusting the current trim pot these are easily broken. If you over torque them then you can get them into a state that is either stuck really high or really low. You can test this by getting a small screw driver and SUPER gently turn the current pot until you feel the resistance to stop. If you never feel this resistance then you have over torqued this current pot and it is broken.

    Hope that helps.

    November 3, 2019 at 12:50 pm #11641
    MonkeyManGuy
    Member

    Generally speaking, I would agree with your statement. It s rather easy to fracture the very fine wires connecting most steppers. It is also easy to clamp down on the insulation , rather than the wire, when inserting using the screw terminals.

    Its getting direct contact with the wires. Ive tripped checked. The terminal itself is already broken. Very dissapointing.

    Also, if you are adjusting the current trim pot these are easily broken. If you over torque them then you can get them into a state that is either stuck really high or really low. You can test this by getting a small screw driver and SUPER gently turn the current pot until you feel the resistance to stop. If you never feel this resistance then you have over torqued this current pot and it is broken.

    I read the directions and was very careful with the pots. Its quite easy to feel their travel limits. All 4 are still intact and have not been damaged.

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