Hello again. Now I am on Z axis design and I am thinking for which pulleys to go. As I found in a lot of threads that htd pulleys of 15mm wide and 5mm pitch are the most common, how many teeth should be? On RM1610 ballscrews it will be mounted with grub screws yes? Thinking how to mount the motor for z axis, we want z axis plates as short as possible. Yes? Here is what i have for the moment..
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Click image for larger version.  Name: z height.jpg  Views: 1528  Size: 184.3 KB  ID: 18013
I am going for a bit smaller size than said in the beggining. Now I am using 1400mm length rail (x axis) and get 1190mm of travel from it leaving 5mm each end unused, in Y axis using 1150mm lenght rail and get 940mm of travel, the same using 5mm each end. Should I leave more in the ends?

All the plates seen in screenshots are 20mm thickness except motor mounting brackets and y axis ballnut housing attachment to z axis.

Thank you for any input!