Bad English Warning : This post can include some bad uses of English because of the author's poor English ability.
Hi puzzlers! I'm an elementary designer of twisty puzzles.
The problem I want to talk about is the core design.
I always struggle with it when I design a puzzle because I can't make decision on what structure would be proper and stable to use.
Here's some reasons:
1. I've nearly zero information about screw. I don't know how many kinds of screw there is and what to use and where to get it.(Note. I live in South Korea.) So I can't use core with screw.(Maybe will be able to do if you teach me about it...)
2. And If I design without screw, I always make very unstable and hard design. I usually refer Pitcher's design, but because of my poor quantity of knowledge on Engineering and some more reason the result always disappoints me. It doesn't work or needs some other additional action to run.
So, That I want to ask you is to give me some information about screw or to suggest to me some nice core models which is stable and doesn't need screw.
I'd be so grateful if you help me. Have a nice day!