Hood design-Week 2

i tried creating the assembly file. watched videos, did as they instructed to. but faced problems and could not book enough sessions to overcome the difficulty because the sessions are very rarely available.

anyways i managed to get the bare assembly. please find the file attached.

also there is a lot of disturbance from the participants. can you make  video where only the instructor guides and people don't poke in? that will be a lot of help.