It's a reflector to amplify the sound by sending more of it forward.Is #3 to keep it dry or to make it look bigger?
I already gave you the answer in the post above!Sorry, typo. Is #3 to keep it dry or to make it look bigger
£50...?? And I think you'd get bored pretty quick with these after a short while, the results in the video are very poor (being kind).
You can buy an Ender 3 v2 on ebay for under £100...and with a little effort get excellent results.