<p>It would be helpful to me if I knew in advance how much the <strong><em>empty</em></strong> filament spool weighs. </p>

<p>Not having emptied any spool yet, I can't contribute data points, but has anyone compiled a list of empty weights from various manufacturers and sizes?</p>

[{'answer_id': 6560, 'author': 'Sean Houlihane', 'author_id': 4927, 'author_profile': 'https://3dprinting.stackexchange.com/users/4927', 'pm_score': 2, 'selected': False, 'text': '<p>Yes, there is a table on <a href="https://www.reddit.com/r/3Dprinting/comments/4hlwse/empty_spool_weights_for_estimating_remaining/" rel="nofollow noreferrer">Reddit - Empty spool weights for estimating remaining filament</a> which suggests that the norm (in 2015) was between 170 and 330 grams for a 1&nbsp;kg spool, superficially in a bimodal distribution clustered around the high and low points. Presumably these were for 3&nbsp;mm filament, this post dating to before the popularity of 1.75&nbsp;mm...</p>\n\n<p>Manufacturer\'s have an incentive to reduce the mass of their spools, or even ship without spools, since the shipping cost will eat into their profit margin.</p>\n'}, {'answer_id': 6587, 'author': 'Greenonline', 'author_id': 4762, 'author_profile': 'https://3dprinting.stackexchange.com/users/4762', 'pm_score': 1, 'selected': False, 'text': '<p>Following on from <a href="https://3dprinting.stackexchange.com/questions/6558/is-there-a-table-or-list-of-tare-weights-of-empty-spools-of-various-manufacturer/6560#6560">Sean\'s excellent answer</a>, here is the (out of date) table in question: </p>\n\n<p><a href="https://i.stack.imgur.com/9Mdi0.png" rel="nofollow noreferrer" title="Empty spool weight table"><img src="https://i.stack.imgur.com/9Mdi0.png" alt="Empty spool weight table" title="Empty spool weight table"></a></p>\n'}]
['https://3dprinting.stackexchange.com/questions/6558', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/12449/']