Vacuum storage bag saver
thingiverse
Use this vacuum storage bag protector when using a storage bag that is not full, or to make sure air pressure (or vacuum?) is more regular or equal.I used brims, and printed upside down. My printer did not require support but you will have to test with yours. The hole/support at the top is for ~36 mm valve which is standard on Space Saver or Amazon Basic bags. You can print at > or < 100% if you valve size is different. Dimensions are not critical.
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