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Build the Idler assembly onto the gantry panel as shown.
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M4 x 30mm
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M4 Penny Washer
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M4 Washer
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624zz Bearing
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M4 Nyloc Nut
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On the other side of the gantry beam build the remaining top side Idler assembly.
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M4 x 18mm Button
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M4 Penny Washer
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M4 Washer
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624zz Bearing
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M4 Nyloc
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Install the two bottom side idler assemblies as shown.
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M4 x 18mm Button
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M4 Penny Washer
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M4 Washer
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624zz Bearing
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M4 Nyloc Nut
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Remove the final rail from its packaging and move the red carriage stoppers inwards one hole space.
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Secure the rail to the gantry as shown with five M3 x 10mm cap head bolts and M3 nyloc nuts.
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Secure the gantry to the top panel as shown. Note the orientation of the gantry assembly.
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M3 x 6mm Cap
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Secure the four 2040 aluminium extrusions to the base.
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M5 x 6mm Button
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Secure the top panel assembly onto the 2040 extrusions.
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M5 x 6mm Button
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Feed one side of each of the two lengths into the back of the tool carriage as shown.
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Secure in place with one of the belt clamps.
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M3 x 6mm Cap
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Leave approximately a CM of extra length. Make sure that the belts are clamped down straight and horizontal.
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Use the remaining belt clamp to hold the belt in place.
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M3 x 6mm Cap
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Do not tighten this clamp down fully, but just enough to hold the belt in place. You should still be able to pull and push the belt through the slot.
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Leave about a few inches free.
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Take the upper belt loop and swing it over the front of the gantry.
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Remove these two bolts and spacers on the motors as shown.
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Take the upper belt and begin by wrapping the smooth side around the left idler on the gantry.
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Whilst keeping some tension on the belt to prevent it from falling off the idlers, pull it forward and wrap it around the front idlers like shown.
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Finally, wrap it around the final idler on the gantry.
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Pull the belt tight to hold it in place, but do not tighten the clamp down just yet.
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Take the left side of the belt and wrap it around the lower left idler on the gantry as shown.
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As before, wrap the belt around the motor pulley first and then around the two rear right idlers like shown.
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Finally, wrap the belt around the lower right idler on the gantry.
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And, as before, pull the belt tight on the tool carriage.
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Use a pair of needle nozzle pliers (included) to tighten the belts.
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Grip the belts with the pliers and twist against the carriage to tighten.
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Trim away excess belt leaving approx an inch dangling.
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Align the flats of the motor's shaft's to the pulley's grub screws and firmly secure the pulley's in place.
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2 Comments
The lower belt keep on jumping when the carriage is moved.
I will be replacing the besting/washers assemblies with proper flanged idlers. Any reasons mot too ? Or changes to apply ?
I have the same issue - the washers seem slightly too small to properly guide the belt. Replacing with flanged bearings seems like a good idea, although bigger washers may do the trick as well.