This model allows you to create spools of various sizes including different sizes of a hexagonal pattern on the sides. you can also make the sides solid if you prefer. 

The project file contains a spool generated with the default settings.

You can easily create your own file using the Customize tool.

Core diameter can range from 20 mm to 200 mm, and spool diameter can range from 50 mm to 250 mm. The width of the spool range from 10 mm to whatever fits the size of your print bed. The center hole can range from 1 mm and up, but can of course not exceed the inner core diameter.

I have put a lot of effort into insanity checking the parameters in the Customize tool. If you input values that exceeds the limits, the nearest limit will be used.