Bed Adhesion Test 4.0 (HackBerry Draft)

The major changes in this iteration include adjusting the retraction distance from 0.8mm to 1.0mm and increasing the infill density from 10% to 20%. Your feedback on these adjustments and potential further improvements is greatly appreciated. Let's collaborate to tackle this common printing challenge together! Don't forget to spread the word within your printing communities. Thanks for your support!