Your local group likely has processes written down somewhere or will send you instructions on a chat platform. There's no way to catalog every local group's processes (and that would defeat the purpose of decentralization), so you'll need to get that from your contact.
If your group would like to re-host this wiki and modify it to fit your specific needs PLEASE DO!!
Below you'll find some helpful resources on designs, testing, and shipping.
For anyone that just wants to get started, The Whistle Crew has a list of “good whistles” that they've printed. Additionally, your local group may have a selection of preferred whistles for their location, and even custom whistles that you should consider.
If you are using someone else's design, please show respect to the makers of whistle models by attributing their work, boosting their models, and (if you are able) providing tips and/or subscribing. 3D designers help make our whistles possible. Specific whistle models are owned and licensed by their original creators. Please respect creator licenses on their respective model pages.
When reviewing a whistle on a model depot website, make sure you're looking at the latest model. A number of whistle designers are releasing new models of their whistles that may work better, have a new feature, or correct an unseen flaw.
A “good whistle”
If your whistles don't do all three things, check the “Printing Whistles” section here in the wiki for troubleshooting tips. You can also talk to others in your group before mass producing.
We suggest that you print a single whistle as a test before loading a whole plate of them.
The page below will help you get started if you are new to 3D printing. Intro to Printing for Whistle Producers
Need help printing good whistles?