14. Hybrid+Idex Y Belts

Written By: Miguel Cruz (and 2 other contributors)
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    • This guide is meant to be followed along with the commissioning guide,

    • Do not install your Y belts before reading the commissioning guide.

    • Tuning all belts from the ground up is a nearly impossible job, so Rat Rig recommends that you first tune your CoreXY belts and only then proceed to add and tune the Y belts.

    Edit

    • Both belts must be pre-cut to your machine size:

    • 1110 mm - V-Core 4 300x300

    • 1310 mm - V-Core 4 400x400

    • 1510 mm - V-Core 4 500x500

    • Both belts must have the same length so they can be easily tensioned later.

    Edit

  3. 2x vc4_y_belt_body assembly

    • 2x vc4_y_belt_body assembly

    • 2x vc4_y_belt_clamp

    • 4x M3x12 Cap Head Screws

    • 6x M3x8 Cap Head Screws

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  4. Install the vc4_y_belt_body on top of the joiner assembly Ensure the belt grooves face the inside of the machine

    • Install the vc4_y_belt_body on top of the joiner assembly

    • Ensure the belt grooves face the inside of the machine

    • 2x M3x12 Cap Head Screws

    • Feed the M3x12 cap head screws through the vc4_y_belt_body assembly and tighten them into the threads on the joint plate.

    • Repeat the previous step and install the parts on the other Y Joiner assembly.

    Edit

  5. Ensure the belt teeth are facing the stepper motor pulleys.

    • Ensure the belt teeth are facing the stepper motor pulleys.

    • Take one end of the top Y belt, and feed it as shown:

    • Insert one end in the printed part slot.

    • Feed the belt through the tensioner idler making sure the theeth are facing the idler.

    • Take the other end of the top Y belt, and feed it as shown:

    • Feed the belt through the top stepper motor bearing stacks. Ensuring the belt teeth face the stepper pulley.

    • Insert one end in the printed part slot.

    • Repeat the previous Steps and install the second Y belt.

    Edit

  6. vc4_y_belt_clamp 3x M3x8 Cap Head Screw Install the vc4_y_belt_clamp on top of the vc4_y_belt_body. Insert the screws through the clamp and tighten them into the heat insets on the vc4_y_belt_body.

    • vc4_y_belt_clamp

    • 3x M3x8 Cap Head Screw

    • Install the vc4_y_belt_clamp on top of the vc4_y_belt_body. Insert the screws through the clamp and tighten them into the heat insets on the vc4_y_belt_body.

    • Repeat the previous step and install the parts on the other Y belt assembly.

    Edit

  7. Please move the gantry back and forth a couple of times to allow the belts to assume their natural positions. Tighten the two set screws on the stepper motor pulleys.

    • Please move the gantry back and forth a couple of times to allow the belts to assume their natural positions.

    • Tighten the two set screws on the stepper motor pulleys.

    Edit

    • Adjust both belts tension in a progressive and equal way.

    • Do not overtighten your belts! it will result in poor machine performance

    Edit

    • Continue with the next guide:15. IDEX Accessories

    • Ignore this if you are just Upgrading your CoreXY to Hybrid

    Edit
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7 other people completed this guide.

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Miguel Cruz

Member since: 02/06/2023

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35 Guides authored

One Comment

Please adapt these for to include building a printer with the idex upgrade to start with. There is no y-control without the hybrid motors. So the printer commissioning does not work without them.

Nick Dietrich - Reply

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