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C-Beam cnc

Discussion in 'CNC Mills/Routers' started by Kyo, Jun 24, 2016.

C-beam Sphinx

C-beam Sphinx

Discussion in 'CNC Mills/Routers' started by Kyo, Jun 24, 2016.

A strong desktop cnc router that will enable you to make larger aluminium plates without taking up to much room. Simple, strong and opensource ! Build one today..

Openbuilds Opensource diy cnc diycnc router grbl sketchup fusion360 cad cbeam vslot dq542ma g540
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  1. Tom C

    Tom C New
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    There are a total of 16 of the M5x27 screws used, eight on each side of the Y-axis. They are used for the wheels that ride in the inside of the C-channel. They are created by grinding 30 mm screws to length.

    See:
    https://openbuilds.com/attachments/043-jpg.17839/
    https://openbuilds.com/attachments/044-jpg.17840/
    https://openbuilds.com/attachments/045-jpg.17841/
     
    #571 Tom C, Dec 19, 2020
  2. Marcjwebb

    Marcjwebb New
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    #572 Marcjwebb, Dec 19, 2020
  3. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    This may have been built prior to the 27mm screws being added to the store.
     
    #573 Rick 2.0, Dec 19, 2020
  4. Tom C

    Tom C New
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    The BOM lists 20 M5x30, so I think you still need 4 of them at 30 mm.
     
    #574 Tom C, Dec 19, 2020
  5. Tom C

    Tom C New
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    I think you are correct. The 27mm screws were not available when I built mine.
     
    #575 Tom C, Dec 19, 2020
    Marcjwebb likes this.
  6. Marcjwebb

    Marcjwebb New
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    Got ya. Yeah they have them on there now
     
    #576 Marcjwebb, Dec 19, 2020
  7. Marcjwebb

    Marcjwebb New
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    ok so the last bit i am having issues finding is the 40t pulley, any ideas?
     
    #577 Marcjwebb, Dec 27, 2020
  8. JustinTime

    JustinTime Veteran
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    Really??? Did you try to google it? I tried the term '40t pulley' and got hundreds of options, many of them in Canada where I am.
     
    #578 JustinTime, Dec 27, 2020
  9. Marcjwebb

    Marcjwebb New
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    Hi all hope everyone is doing well.

    I am at the finish line but have one last (hopefully) hurdle to overcome.

    I have a 20t gt3 and a 40t gt3 pulley, however I have just tried to put the belt on and the belt is way too small, even with the motor backed as far as it can go (towards the lead screw side) its too tight to even get around both pulleys.

    am I missing something ?
     
    #579 Marcjwebb, Apr 23, 2021
  10. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Both should be 20T pulleys. Its an offset kit, not a reduction
     
    #580 Peter Van Der Walt, Apr 23, 2021
  11. Marcjwebb

    Marcjwebb New
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    Ah got ya. That makes sense.
    Although the guide at the start of this post does use a 40t.
    I’ll switch it for a 20t and see how I go
     
    #581 Marcjwebb, Apr 23, 2021
  12. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Best to follow the Official Build: which matches the Parts bundles: OpenBuilds Sphinx 55 (20" x 20") - this here, was the original build by Kyo. Later refined into the bundle of parts available from the store: OpenBuilds Sphinx 55 (20" x 20")
     
    #582 Peter Van Der Walt, Apr 23, 2021
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