A large range of printable strobe discs is now available at the KeyStrobe site (direct link): [URL]http://www.keystrobe.com/Keystrobe/Downloads.html[/URL] Available are 50Hz, 60Hz & 300Hz disc patterns. These are pre-scaled to: 100mm diameter A4 & Letter width A3 & Ledger width All are drawn as vector graphic pdf files and are completely free to download and use. Enjoy :) [IMG]http://www.keystrobe.com/Keystrobe/Downloads_files/complet%2050hz%20100mm.png[/IMG][IMG]http://www.keystrobe.com/Keystrobe/Downloads_files/complet%2060hz%20a4.png[/IMG][IMG]http://www.keystrobe.com/Keystrobe/Downloads_files/complet%20300hz%20a4.png[/IMG] [IMG]http://www.keystrobe.com/slice.jpg[/IMG]