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    • X and Y motors and pulleys are all identical components, but the X pulley needs to be installed differently than the Y pulley.

    • Insert wisdom here.

    • Take out two set screws out of the pulley using a hex key.

  1. Put a single small drop of thread lock onto the set screw thread.
    • Put a single small drop of thread lock onto the set screw thread.

    • Spread the thread lock into the thread.

    • Wipe excess if necessary.

    • Do not use too much thread lock. Little is enough.

  2. Re-insert the set screws into the pulley.
    • Re-insert the set screws into the pulley.

    • Do this for both set screws :-)

    • Slide the Y pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces away from the motor - towards the top of the motor shaft.

    • Align the top of the shaft with the top of the pulley.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

    • Same as putting the thread lock onto the Y Pulley set screws.

    • Take out two set screws out of the pulley, put thread lock into their threads, and put them back into the pulley.

    • Slide the X pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces the motor this time (the opposite from Y pulley on Y motor.)

    • This X motor pulley alignment is very different from Y motor pulley. Follow the instructions closely.

    • Slide the pulley as far away from the motor as you the set screws still can fully grip the motor shaft .

    • The X pulley will be extending about 3mm (0.12'') beyond the top of the X motor shaft.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

    • X and Y motors and pulleys are all identical components, but the X pulley needs to be installed differently than the Y pulley.

    • Take out two set screws out of the pulley using a hex key.

    • Put a single small drop of thread lock onto the set screw thread.

    • Spread the thread lock into the thread.

    • Wipe excess if necessary.

    • Do not use too much thread lock. Little is enough.

    • Re-insert the set screws into the pulley.

    • Do this for both set screws :-)

    • Slide the Y pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces away from the motor - towards the top of the motor shaft.

    • Align the top of the shaft with the top of the pulley.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

    • Same as putting the thread lock onto the Y Pulley set screws.

    • Take out two set screws out of the pulley, put thread lock into their threads, and put them back into the pulley.

    • Slide the X pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces the motor this time (the opposite from Y pulley on Y motor.)

    • This X motor pulley alignment is very different from Y motor pulley. Follow the instructions closely.

    • Slide the pulley as far away from the motor as you the set screws still can fully grip the motor shaft .

    • The X pulley will be extending about 3mm (0.12'') beyond the top of the X motor shaft.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

    • Take out two set screws out of the pulley using a hex key.

    • Put a single small drop of thread lock onto the set screw thread.

    • Spread the thread lock into the thread.

    • Wipe excess if necessary.

    • Do not use too much thread lock. Little is enough.

    • Re-insert the set screws into the pulley.

    • Do this for both set screws :-)

  3. Slide the Y pulley onto the Y motor shaft.
    • Slide the Y pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces away from the motor - towards the top of the motor shaft.

    • X and Y motors and pulleys are all identical components, but the X pulley needs to be installed differently than the Y pulley.

    • Take out two set screws out of the pulley using a hex key.

    • Put a single small drop of thread lock onto the set screw thread.

    • Spread the thread lock into the thread.

    • Wipe excess if necessary.

    • Do not use too much thread lock. Little is enough.

    • Tip: Keep the set screw on the hex key for easy manipulation.

    • Re-insert the set screws into the pulley.

    • Do this for both set screws :-)

    • Slide the Y pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces away from the motor - towards the top of the motor shaft.

    • Align the top of the shaft with the top of the pulley.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

    • Same as putting the thread lock onto the Y Pulley set screws.

    • Take out two set screws out of the pulley, put thread lock into their threads, and put them back into the pulley.

    • Slide the X pulley onto the Y motor shaft.

    • The thin flange side of the pulley faces the motor this time (the opposite from Y pulley on Y motor.)

    • This X motor pulley alignment is very different from Y motor pulley. Follow the instructions closely.

    • Slide the pulley as far away from the motor as you the set screws still can fully grip the motor shaft .

    • The X pulley will be extending about 3mm (0.12'') beyond the top of the X motor shaft.

    • Tighten the set screws well.

    • Tighten as much as you can without damaging the thread (so called 'stripping').

    • Make sure one of the set screws is against the flat side of the motor shaft. This prevents the pulley from spinning around.

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Filip Goc

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