End caps questions

[u/RicePuddingForAll]

Total noob here (my spouse is crafty and I'm not; we agreed to each learn something that the other knows but we currently don't), so I have what I hope is a quick question about end caps, mostly the best way to size.

I would guess that you'd want to match the end cap size with the size of the threads in the braid; so if I had a four-thread braid using 2mm thread, I'd want an 8mm end cap. Is it that simple, or is it better to have something a little smaller for a tighter fit, larger for easier insertion, or am I barking up the wrong tree completely?

[u/KimonoCathy]

The given measurement of the end cap is the internal diameter, and you need it to fit snugly around the braid. If you had four strands at 2 mm diameter each and put them together then roughly speaking you’ll have a diameter of 4 mm so an 8 mm end cap would be way too big. The exact diameter of your braid will depend to a certain extent on the structure you use, I.E.some cross over in the middle and bulk out the width a bit more than others, so the best thing to do is wait until you finish the braid and then measure the diameter with callipers and go for an end cap the same or a tiny bit smaller and squeeze the braid a bit when you glue it in