3d printer linear bearing collection

this includes individual bearings that can be printed and have groves perfectly spaced to then be cable tied into position rather than screwed in, this serves a purpose for easy and quick installation should one need to change a bearing in a hurry. these fit my Anet A8.
i have also included a bearing holder, these should fit a standard 15mm bearing casing for 8mm linear bearings. you will need 2 for each bearing and each holder screws into place perfectly supporting and holding the bearing between them. again these fit my Anet A8 but should be good for 99% of 3d printers that use this kind of bearing