anyone make their own t-slot linear bearings?

Single Flange Short Standard Linear Bearing: Use with Shelving t slot linear bearing linear motion without the additional use of lubricants The slide body made of stable die-cast zinc gently transfers the load into the profile groove The T- twin slot accessories This is a multi-pack for 3D printed replicas of standard commercial 8020 brand linear bearings I have experimented both with printing

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