Bambu Lab Spool Weight for AMS

To improve my freeCAD skills I designed this Basic spool weight can.It is designed for Bambu Lab spools with an inner diameter of 55 cm (the can is 54cm).Actually I put 8 AA batteries inside but I ordered some weights on Amzone. (https://www.amazon.de/gp/product/B01MCVQNTH/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1) There is also a container for silica https://makerworld.com/de/models/41788#profileId-42323