Your home for information and resources for printing and shipping community protection whistles.

Getting started:

• Select and Test a Whistle Design
• Pick a Whistle Request
• Print Those Whistles
• Ship Those Whistles
• Getting Supplies

For anyone that just wants to get started, we have a list of “good whistles” that this group has printed:

• Makerworld - Good Whistles List
• Printables - Whistles for Community Safety Collection

• 38mm Micro-Bitonal with Half-Height Hole
• Compact Dual-Chamber Whistle V2.1 - prints on its side for more per plate

You want to make your own whistle design? If you want to use or make different whistles that is fine by us. We're not the boss of you! The group is here to offer suggestions and information about what has worked well for us, not to tell you what to do. If you find another “good whistle” please let us know so we can add it to our collection.

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.

We suggest that you print a single whistle as a test before loading a whole plate of them. A “good whistle”

• is loud enough to be heard for several streets in an urban environment (> 90db or louder—some phones will test decibel level)
• will not require you to blow very hard to make a sound
• will continue to make sound if you blow into them really, really hard.

Whistle Testing

If your whistles do not do all three things, check the “Printing Whistles” section here in the wiki. You can also talk to others in the Whistle Crew Chaos Chat before mass producing.

Congratulations and welcome to the effort! 3D printing is a great hobby especially now that the technology has evolved to being about the things you produce rather than the printer itself. The page below will help you get started if you are new to 3d printing. Intro to Printing for Whistle Producers

• Annex
• Anycubic
• Bambu Labs
• Prusa
• Qidi
• RatRig
• Snapmaker
• Voron

• Plate Rotation
• Slicer Tips and Tricks
• 3D Printer Tuning

Need help printing good whistles?

• Many of the whistles on the “good whistle” list have print profiles for many of the major printer brands that have been stress-tested by members of the chat. It is often easier to use someone else’s print profile that they have optimized than trouble shoot from scratch.
• Most of us have had good luck with Silk PLA over other filament, but experience varies.
• Sometimes a whistle starts going bad due to printer mishaps. We have found that it helps to merge items (in most slicers, by CTRL-clicking multiple whistles, or CMDclick on Mac) so that you have less than 64 items on a plate. That allows you to skip the whistle that is going bad and not produce more spaghetti.
• We have a lot of experienced whistle printers in the Whistle Crew Chaos Chat. Drop a line and explain what you’re doing and what’s not working. It helps to include info like what kind of printer & filament you’re using.
• Bed Adhesion Tips
• Whistle Malfunctions

• Filament Dryer Recommendations

• Inventory Systems - How to count whistles
• Shipping

• Wish Lists
• Prints to Help Printers
• Whistle Counting Tray for Micro Bitonal Whistles by The Broken Circle
• Breakaway Clips

• Whistle Crew's GoFundMe
• Whistle Crew's Linktree

• Optimal Bridging Angles - Avoid lengthy bridging on whistles by tuning settings.
• Safety Phone Numbers and how to add them
• Shipping Safety and Security

About This Wiki

All content on this wiki is Public Domain. You are encouraged to copy, remix, re-host, and spread this content far and wide.