How model with measurements

As per diagram i have model. I want to make the handle of 180mm as mark in red. Its an Olympic weight plate.

I have tried so far.
weight plate.blend (819.4 KB)

Any suggestion or help how it works.

Are you sure that’s not a typo and meant to mean a 183cm (6 ft) bar?

Look at this for more of a scientific method…to early in the morning for me to get my head around but see if that works for you.

Or you can try array an object around it by that certain distance and it should give the the start and stop. Just a thought. :slight_smile:

olympic weight plate.blend (889.7 KB)

I tried this but still not confidence