shapes - Custom stroke caps in Illustrator?

First post here!

What I'm trying to accomplish looks fairly simple but so far I've had no luck in finding a way to accomplish it. Essentially I want to create custom stroke caps (or strke profiles if necessary) that will allow me to create strokes with a shallow rounded end or an angled end as shown below

Is this even possible? If so, how would I go about making this happen? I am working on a typeface where these two shapes will be common, and I prefer to work with pure strokes first, so if I can accomplish this it would be great. Thanks in advance for any tips!

Answer

You could create end caps by creating custom arrowheads.

Here is a link to an Adobe.TV video walking you through arrowhead creation

Or if you'd rather follow the Adobe Help Pages, here's what they say:

To define custom arrowheads, open the Arrowheads.ai file, which is located under ShowPackageContent\Required\Resources\\ (for Mac) and \Support Files\Required\Resources\\ (for Windows). Follow the instructions in the file to create custom arrowheads.

Place the updated Arrowheads.ai file at: \Plug-ins\ and avoid replacing the existing Arrowheads.ai file.

Then apply the arrowhead to the strokes via the Stroke Panel.

You could also create brushes with end caps (pattern brush) but arrowheads offer the advantage of scaling with the stroke properly and brushes can be hit or miss when it comes to scaling ends without middle pieces.

Art Brushes, with the ability to Stretch Between Guides can be a quick and easy way to create some end items....

I use what is needed and sometimes the brushes just don't work as expected, especially for non-perpendicular or curved paths. The arrowheads seem to always work as expected.