Hi all, 

Drawing a long pipe network, currently in 3D sketch. 

For my last straight line I have a length of 37000mm, if i try to add an additional line or simply increase the length up to 40000mm, i get an error. 

This makes no sense to me why the increase of length should cause an error. Any ideas? Note that the complete model is going to be a 60" pipe approx 1 kilometers long, however it should not