trying to put the front rollers on the base.
The picture shows 2 aluminum spacers and to eccentric spacers. This is a physical impossibility. I can only think it is one and one?
Also, the eccentric spacer has a flange on it that is not shown on the picture. If this is the proper piece I am using does the flange face up or down?
So, it's actually just one M5 Aluminum Spacer and one M5 Eccentric Nut. It looks like there's two in the picture, but it's actually just a reflection. Look at what the arrows are pointing at
The flange on the spacer points down, towards the base. The hole in the base should be big enough for the flange to fit, but nothing else.
The instructions call for one aluminum spacer and one eccentric spacer. The picture may be confusing you as it has a reflection in the metal of the printer base. The smaller extrusion on the eccentric spacer fits into the hole on the metal base.