In addition to what is mentioned by others, it starts the flow going to get a smooth pressure in the nozzle. While heating up the bed/nozzle, there can be an inconsistent melt in the nozzle. Sometimes a bit will ooze out and leave the nozzle empty. The purge will even all that stuff out and get fresh filament in there before it starts actually printing
charles
joined 1 year ago
Weird downvotes, but ok. It was $5, which is far less than I'd spend on filament prototyping it, let alone time considerations.
but it's honest work
I just upload it to YouTube as "unlisted" and share the link