For version 2.25 and later, you might have one side panel that is flat and one with a carved out “R”. If you like the “R”, just place it outside the flat panel so that the box remains sealed. If you have ordered a custom side-panel, this replaces the one with the “R”.
For the single rollers, it is best to thread the screw fully through the roller axels while holding them with the "Drumstick tool" once before assembling. This, because the thread hole is so tight you risk just rotating the axel and opening up its fastening hole in the side otherwise. Then remove the screw and install the bearings as instructed.
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For version 2.25 and later, you might have one side panel that is flat and one with a carved out “R”. If you like the “R”, just place it outside the flat panel so that the box remains sealed. If you have ordered a custom side-panel, this replaces the one with the “R”.
Note that on later versions i.e. V2.25+, the “front exit panel clamp strip (part 30) “ looks different. See further below.
For the single rollers, it is best to thread the screw fully through the roller axels while holding them with the "Drumstick tool" once before assembling. This, because the thread hole is so tight you risk just rotating the axel and opening up its fastening hole in the side otherwise. Then remove the screw and install the bearings as instructed.