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H-Bot CoreXY Cube with Fixed Build Plate-

Discussion in '3D printers' started by TomH, Apr 3, 2015.

H-Bot CoreXY Cube with Fixed Build Plate

H-Bot CoreXY Cube with Fixed Build Plate

Discussion in '3D printers' started by TomH, Apr 3, 2015.

Use of V-Slot for frame and rails with option to use identical 500mm uncut lengths: 8 * 20x60 x 500mm 8 * 20x40 x 500mm 7 * 20x20 x 500mm (2 cut into four identical 125mm pieces for filament holders) Use of uncut 500mm rails obtained through use of 12 joining plates for use as spacers. Alternate approach is to trim two 20x40 and 1 20x20 rail by 6-8mm each. Build volume ~400mm cubed (with dual extruders). Use of only openbuilds components! Currently in design phase...

H-bot Core XY Fixed Build Plate Cube 3D Printer v-slot
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  1. TomH

    TomH Well-Known
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    No, they are from robotdigg. They are slightly smaller which was exactly what I needed with my idler arrangement and they are a lot cheaper - they look nice too in gold!
     
    #91 TomH, Oct 26, 2015
  2. TomH

    TomH Well-Known
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    Oh, I forgot to note that I hit my build size target! Tested mechanical movement limits were X:450mm, Y:402mm, and Z:400mm - not too shabby using all 500mm length rails! Please note that the 450mm X travel was intended to allow for a full 400mm build size while using a quad extruder (in my case it was planned for dual e3D chimera or cyclops though I am currently just using a single e3D chimera for dual color printing). Hope to print soon - just haven't had much time to spend working on it and got sidetracked by trying to get a piezo sensor auto level sensor circuit working....
     
    #92 TomH, Oct 26, 2015
  3. Adam Filipowicz

    Adam Filipowicz Journeyman
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    Cant wait to see how this ends up. I want to do the same thing
     
    #93 Adam Filipowicz, Oct 26, 2015
  4. JohnH

    JohnH New
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    Hey Tom,

    Been following this build since the start and love it. I am currently building the Vulcanus CoreXY simply because it is cheap and loved the idea that a 16 year old designed it. However, I am about to complete it and will want a bigger and more rigid design, much like yours or I should say the way you would have done it if you were to start again (4 ball screws and what not.) I wanted to design my own, but why reinvent the wheel on this, the way you are building it is exactly the way I have been envisioning building my own... So what I was wondering is if you have a BOM or plan to put one together? I, more or less, am interested in the mechanical parts, all the electronics I already have figured out and already purchased.
     
    #94 JohnH, Dec 4, 2015
  5. TomH

    TomH Well-Known
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    Today is the first time I have worked on it in over a month...Hopefully will be trying a calibration cube tonight...

    Anyway, I'm not sure this BOM is accurate but it is what I started with (see attached). If I were to do it again, as noted, I would go the 4 ball screw route (may change my lead screws eventually). I would also probably change my gantry attachment and screw belts as implemented here (CoreXY W/ Fixed Build Plate & Enclosure | OpenBuilds) - this arrangement looks like it would be much easier to align than mine - he borrowed from my build and improved upon it in some ways - his screw belt arrangement is worth a look as well...
     

    Attached Files:

    #95 TomH, Dec 4, 2015
  6. Adam Filipowicz

    Adam Filipowicz Journeyman
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    So hows the print quality been. any issues?
     
    #96 Adam Filipowicz, Dec 24, 2015
  7. TomH

    TomH Well-Known
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    I actually haven't worked on it since the last post - a combination of issues has help me up: most of my time was spent with a High School robotics team in preparation for a qualifier event :nailbite:, then a firmware bug in my control board (now supposedly fixed) stopped it just short of printing :banghead:, and then an emergency trip to an eye surgeon for a retinal tear caused by an airbag deployment from hitting a deer :blackeye:... Anyway, hope to finally get there this weekend!

    Merry Christmas!
     
    #97 TomH, Dec 24, 2015
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