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This guide is meant to be followed along with the commissioning guide,
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Do not install your Y belts before reading the commissioning guide.
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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.
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Both belts must be pre-cut to your machine size:
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1110 mm - V-Core 4 300x300
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1310 mm - V-Core 4 400x400
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1510 mm - V-Core 4 500x500
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Both belts must have the same length so they can be easily tensioned later.
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2x vc4_y_belt_body assembly
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2x vc4_y_belt_clamp
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4x M3x12 Cap Head Screws
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6x M3x8 Cap Head Screws
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Install the vc4_y_belt_body on top of the joiner assembly
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Ensure the belt grooves face the inside of the machine
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2x M3x12 Cap Head Screws
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Feed the M3x12 cap head screws through the vc4_y_belt_body assembly and tighten them into the threads on the joint plate.
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Repeat the previous step and install the parts on the other Y Joiner assembly.
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Ensure the belt teeth are facing the stepper motor pulleys.
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Take one end of the top Y belt, and feed it as shown:
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Insert one end in the printed part slot.
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Feed the belt through the tensioner idler making sure the theeth are facing the idler.
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Take the other end of the top Y belt, and feed it as shown:
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Feed the belt through the top stepper motor bearing stacks. Ensuring the belt teeth face the stepper pulley.
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Insert one end in the printed part slot.
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Repeat the previous Steps and install the second Y belt.
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vc4_y_belt_clamp
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3x M3x8 Cap Head Screw
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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.
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Repeat the previous step and install the parts on the other Y belt assembly.
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Please move the gantry back and forth a couple of times to allow the belts to assume their natural positions.
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Tighten the two set screws on the stepper motor pulleys.
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Adjust both belts tension in a progressive and equal way.
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Do not overtighten your belts! it will result in poor machine performance
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Continue with the next guide:15. IDEX Accessories
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Ignore this if you are just Upgrading your CoreXY to Hybrid
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Almost done!
Finish Line