This is a Negative Part that can be used directly in the slicer to universally add drain holes to any model, including vase mode printing. This will allow you to scale your pot/vase as large or small as you want while keeping the drains the perfect size. 

The models used are 1mm thick, so if you intend to print your planter with a thicker base, just scale the z axis as much as you need.

Small: ½" (12.7mm) diameter

Large: 1" (25.4mm) diameter

Instructions:

To use this, you must first import the model you wish to add holes to. After doing so follow these steps:

1: Right click on your model and select "Add Negative Part > Load"

2: Navigate to the file folder and select which size you want to use and click Open

3: The new negative part may import below your build plate. If so just select it and click on Move or press M.

4: Place the negative part at the bottom of your model so that it sits inside of it, but make sure it is still visible on the bottom (check the photos for an example)

5: Slice