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Thread: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

  1. #21
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    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    Quote Originally Posted by jwatte View Post
    www.saleae.com

    The cheapest one (Logic 4, $109) will probably be just barely enough. I've upgraded my way through their offerings (started at the bottom many years ago) and am now on the 16 Pro.
    You can probably live with the second-cheapest (Logic 8, $219) for a very long time, especially these days when it also comes with analog input. (Used to be digital-only.)
    Up vote!

  2. #22

    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    Quote Originally Posted by m3atsauc3 View Post
    https://www.sparkfun.com/products/13929
    Anyone used one of these?
    Nope, Looked somewhat interesting. I Have not advanced as far as jwatte

    I started off with one of their first ones that I later gave away, I upgraded to the 16 channel one when it came out. I then supported their sort-of kickstarter for the new ones and purchased the Logic-8. Later when I wanted to debug some higher speed interfaces, I purchased the Pro8... So right now I have all three of them on my Desk as I am debugging some new implementations of the SPI library for the Teensy boards and so I am testing things out on T3.6, 3.5, 3.2, T-LC and a little with T2... And it is nice to be able to switch between the different boards ana have some of them already setup to LA...

    If I were to choose one for beginner/Intermediate usage, I would probably suggest the Logic 8, unless you are only doing simple things.
    For example with the SPI stuff, I am doing some testing using things like an SSD1306 display and it is nice to hook up the Logic analyzer to see (MOSI, MISO, SCK, CS, DataCommand) which you can not do all of them on the Logic 4... It is only rare times when I need more than 8, but used it last week again testing with the Async SPI code where I was testing on T3.5 or 3.6 with three of these displays, one on each SPI buss and I wanted to see how well all of the SPI signals were being done concurrently... Sorry for the regression...

    (Now in process of debugging Async 16 bit writes using DMA on T3.6...

    P.S - I also have a custom Analyzer that R3n33 started for the AX messages which is nice to use.

  3. #23

    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    That one looks new! No, I have not used it.
    If you try it out, let us know how it works!

  4. #24

    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    It's been a while, but the project is still ongoing! Here's a bit of progress news:
    I have sourced most of the metal and plastic brackets and motors. I did not have enough of the standard plastic brackets, and they seemed to be out of stock online, so I decided to get them some printed by Shapeways.
    For now I should be able to put together 2 front legs and spine, using some temporary brackets for the body. Later on there will be various 3D printed parts, both structural and decorative.
    I've decided to go with an all-blue colour scheme, so the 3d Printed parts were done in the Shapeways standard blue. I tried spray-painting the metal brackets as well as the small plastic washers/bushings, and they haven't come out too bad. I guess the spray paint will chip/come off over time, but I'm not too concerned, if anything it will give it a seasoned look!
    On the software side, some of the kinematics code has been ported to the Arbotix, while I'm also working on some fixed walking gait patterns which will let the quad make its first steps.

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  5. #25

    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    Two legs built and old test rig scaffold repurposed. Videos to follow soon hopefully.

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  6. #26

    Re: Quadbot 17 - Quadruped robot designed in Autodesk Fusion 360

    Looks neat!

    I'll be super interested in seeing how it turns without a yaw servo but instead having two roll servos. While you're moving dynamically, that might enable some cool gaits.

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