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3D Printer X axis

Discussion in 'General Talk' started by antonyking, Jan 6, 2017.

  1. antonyking

    antonyking Journeyman
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    Sorry if this has been asked.

    I am building a Cartesian 3D printer with a Heated bed 500x500mm from Wombot. I will use the C-Beam Linear Actuator Bundle for the Z axis but after some thinking I was thinking about using the Lead Screw Bundles for the X and Y axis.

    I understand I can use a lighter belt X axis but I have read that the Lead screw setup should be more accurate? Is this correct?

    I am thinking about 700mm for X axis.

    So to my Question:

    If I use the Linear Actuator Bundle Lead Screw for the X axis... other than the weight, is there any negative reason not to?

    Antony
     
  2. antonyking

    antonyking Journeyman
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    I found My C-Beam 3D Printer which basically shows he has built something that seems to work.

    I'd still be up for any opinions about what I am asking above... especially the Openbuilds linear screw kits v Belt kits.

    Antony
     
  3. antonyking

    antonyking Journeyman
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    Due to the size of Heated Bed being 500x500 and weighs almost 3kg on it's own, plus a gantry plate and 3mm Boroglass etc. I am going for a belted Y axis on Linear Rails spread I guess at least 300mm apart.

    I will try a C-beam with lead screw for the X axis mainly out of getting it done quick but also as a comparison as I can convert the lead screw to a belt easy enough after.
     
  4. evilc66

    evilc66 Master
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    I'd go the other way around if you want to use belts somewhere. The Y-axis will be far heavier than the X, and as a result will experience more belt stretch, backlash, and ringing from moving that big lump of a build platform around. With a leadscrew setup, you will have virtually no backlash. The X-axis can be belt as it is far lighter.
     
  5. antonyking

    antonyking Journeyman
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    Yeah good points. I am waiting to get parts but from what I odered I am pretty flexible with how I do it. Setting up a lead screw might just be wise.
     

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