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Then align one of the profiles with the two nuts of one of the brackets. Always starting with the outer screw first, loosen the screw 5 full turns, then tighten it 2-3 full turns until the profile is held tightly against the bracket.
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After both nuts connected properly, add a second profile to the same bracket.
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From this point on in the assembly, it is necessary to identify the 3 towers individually. Looking at the profiles with the flat LCD cables between, the front left tower will be X, the front right tower Y and the rear tower Z. The extrusions joining them will be referred to as X-Y, Y-Z and X-Z.
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The pulley is fitted with the collar and grub screw facing towards the motor. This provides correct alignment with the idler at the top of each tower.
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Align motor with plastic bracket, with the cable socket on the left-hand side of the motor viewed from the bracket end (hidden in the picture above). Insert four M3x8 screws and tighten with the ball end of 2.5mm hex key.
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Repeat for the other 2 brackets. The completed base assembly may now be set aside while you get on with the top assembly.
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Almost done!
Finish Line