This is a cup holder for the standard bracket on the Igloo water coolers. It is not a dispenser, as the cups I had could not be dispensed.

The included holder holds 3.2 inches/8.2 cm cups(+/- 5mm). New size: Solo cup dispenser - https://www.thingiverse.com/thing:3012213

I made this in two pieces as it is sturdier that way. Also, it will be possible to reuse the bracket part without reprinting it to accomodate new cup sizes.

Use 2x 13mm M3 screws and 2x nuts to bring the parts together.

The nut holes are tight on purpose.

To put the nuts in their holes, use a screw to force the nut in the hole before assembling the parts.

The screw holes, depending on your screws, can be a bit tight, just open them with a 1/8th bit.