M200 lost mms in Z axis

After 5 months and a lot of printed object i'm sure that my M200 lost some millimeters in Z axis: 1 mm every 100 mm, for precision.

Here the last example, the object is 92 mm, printed is 91 mm.

Any solution for that ?

The attached stl is printed in vertical (!).

What filament are you printing with?  ABS shrinks about 8% according to 

http://www.fabbaloo.com/blog/2014/5/8/shrinkage-a-problem-of-3d-measurement

Though it was more like 2-4 % on the M200.  You could always scale up the object in ZSuite by 8%.

91/92 = 1.09% difference