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GridBot Two

Discussion in '3D printers' started by SOA, Jan 26, 2020.

  1. SOA

    SOA New
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    SOA published a new build:

    Read more about this build...
     
  2. fstkmaro

    fstkmaro New
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    Nice looking build. I like all the detail put in. I have to look through the build but it seems that those are 10mm profiles, am I correct? If so, what the largest recommended size using those? I ask wondering about its firmness when printing at high speed. Thanks again and great job.
     
  3. SOA

    SOA New
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    Thanks. The extrusions are 20mm x 20mm and it's quite rigid. I print between 100mm/s and 150mm/s. Attached is a close-up of a print.
     

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  4. SOA

    SOA New
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    This is my print farm. The top two are 450x450x350 and 450x450x550. The bottom two are both 450x450x450.
     

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  5. fstkmaro

    fstkmaro New
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    Thanks for your quick reply. I really like this with no rails, just rollers. Interesting. I was just checking out the build with the 3z screws as well.
     
  6. xanderDK

    xanderDK New
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    Cant say how much I love this build, you really worked through. I'm thinking about building one myself. But looking for a slightly bigger build area than 300x300 and now you posted this picture. The 450x450 ones you built are they build one the GridBot Two principles just with longer extrusions ?
     
  7. SOA

    SOA New
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    Thanks. I was referring to the extrusion lengths used. 450x450x450 yields a build area of 300x300x350. It's easy to extend the Z lengths for taller builds. But making XY build areas larger means longer linear rails ($$$) and, most difficult, a larger heated bed.
     
  8. Uberjoe

    Uberjoe New
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    Hi, I'm highly interested in building all this, but, quite don't understand wich firmware you took for driving the SKR.
     
  9. SOA

    SOA New
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    I built Marlin 2.0.x from source so I could make modifications. The code is here: GridSpace/grid-bot
     
  10. drencken

    drencken New
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    Hi @SOA - maybe I missed it but what material are the laser cut pieces?
     
    #10 drencken, Feb 16, 2020 at 9:13 AM
    Last edited: Feb 16, 2020 at 9:25 AM
  11. SOA

    SOA New
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    it's all either 3mm or 6mm thick acrylic. of course, the pieces are printable. the 6mm pieces should be printed heavy / solid. the 3mm pieces are required to be strong. it should all be spelled out in the Onshape CAD model BOM.
     
  12. xanderDK

    xanderDK New
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    One thing I can't find in the BOM is the type of camera/webcam suitable for the modeled mount? What fits? Thanks
     
  13. SOA

    SOA New
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    I'm using the raspberry PI noir cam with a long ribbon cable.
     
    xanderDK likes this.
  14. xanderDK

    xanderDK New
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    Okay thanks. Just finished printing the parts and next week its laser time. But the more I look into this the more questions :D

    What about endstops I can't find any on the model or BOM?

    How is the Pi connected to the SKR though usb or serial?
     
  15. SOA

    SOA New
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    I'm using sensorless homing now. But endstops are easy to add, if you prefer. The SKR is connected to the PI with a USB cable.
     

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