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My first build

Discussion in 'Concepts and Ideas' started by CapnFailBoat, Oct 10, 2015.

  1. CapnFailBoat


    Jul 27, 2015
    Likes Received:
    Earlier this summer I made a post asking about controllers and drivers, and now after some research and sketching I think I have an idea on what i'm going to be doing for the mechanicals.

    I plan on keeping it mostly by the book with a roughly 500mm x 1000mm work area with the major axi's moving along c-beam lead screw actuators. I'm fairly confident about most of the design so far but there was one area I was hoping to get some feedback on.

    For the y-axis I was going to use 2 c-beam actuators connected to a "bridge" for the x and z actuators. But I was concerned about having to slave 2 steppers and the associated costs. So I came up with the idea of using a closed loop gt2 belt being connected to a single nema 23 stepper, the two y actuators, and a scissor type of tensioner that would keep the belt around at least half of the driving pulley. Pretty similar to how a serpentine belt on a car would work.

    I assumed that since the tensioner is acting on both sides of the driving pulley, that quick direction reversals wouldn't be a problem.

    I would love any feedback on this idea, constructive or otherwise.

    Fusion360 has been a bit rough on the assembly process for me so I don't have anything besides a few hand sketches at the moment but that's my next step to get final dimensions and part counts.
    #1 CapnFailBoat, Oct 10, 2015
    Last edited: Oct 10, 2015

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