X Axis belt not tensioning

I have tried a few times now to tension my X axis belt and cannot get it to be taught without having excess hanging out of one or both ends of the X Carriage. I measured the belt and it is 855mm long. Is the belt too long or am I doing something wrong?

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Hi Steve,

X axis belt should have length 850 mm. If the printer's back is turned towards you, there should be no excess of the belt on the left side and about 4-6 tooth on the right.

Something similar to this image from assembly manual:


Final tension will be introduced by rotating the X axis motor back to its position.

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Steve will be eternally grateful.
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