Direct urls or unique urls to custom category

hello!

i am developing my theme and I have found a problem.

It is a portfolio, I have a section called Last Works, it is a custom post type.

It works fine, if I type http://www.mydomain.com/last-work it load’s perfect. (I created a custom page for this section)

Know I introduced a new category call Project Type (I created a custom taxonomy called project-type).

My problem is ¿what I have to do to allow my visitors to enter http://www.mydomain.com/last-work/print and get all works from this category????

Any ideas?????

Thanks you very much!