About this 3D model

This a very simple roll support, using 4 parts for the frame (2 units of each .stl that I've uploaded). The roll rest in 4 624Z bearings. I've uploaded the .stp and .igs for those of you who need to update the dimensions. The original model is prepared for a 200x55mm roll. UPDATE: uploaded version 2 with reinforced frame. Original was too week in PLA.