thanks for the support guys,
i'll be sending an email off tomorrow to order everything needed.
i thought about making my own ronchi tester but since im a complete beginner i thought i might aswell just buy one and know that its going to work properly first time.
http://www.telescopes-astronomy.com....escopes036.htm
this guy is in Adelaide and the prices seem pretty good.
i do have 1 question though, would i be better off using a glass tool or should i make a tile tool for my first go?