What is considered to be “detached”?
Is having a thin component connecting the main robot and the secondary robot (assuming all other rules are not broken) against the rules?

I assume your talking about FTC or Bridge Battle. I had a similar design at the beginning of this year. I don’t believe the part is considered detached, however there are entanglement issues. You would have to check with the official GCD.

Well I solve the entanglement issue, so I think I’ll be fine
Thank you