{"id":2567,"date":"2019-10-11T01:43:42","date_gmt":"2019-10-10T22:43:42","guid":{"rendered":"http:\/\/dima.fi\/blog\/?p=2567"},"modified":"2026-01-10T22:12:20","modified_gmt":"2026-01-10T20:12:20","slug":"filament-spool-scale","status":"publish","type":"post","link":"https:\/\/dima.fi\/blog\/filament-spool-scale\/","title":{"rendered":"Filament spool scale"},"content":{"rendered":"\n

I use airtight cases<\/a> for 3DJake’s<\/a> 250g filament spools. But the problem is to know how much filament is left there. So created a kinda smart scale, that tells me the amount in percents.<\/p>\n\n\n\n

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The case is designed to be attached to the top right part of the Prusa i3 printer’s frame by using longer M3 bolts and nuts. A load cell is mounted to the case with two about 15mm M5 bolts and the arm is attached to the load cell with two 15mm M4 bolts.<\/p>\n\n\n\n

Parts used:<\/p>\n\n\n\n