I'll be updating this list over time, if I'm mising a supplier please email the link via the contact us form and I'll update it asap.
Rack and Pinion // Square linear rails (Hiwin)
CNC Spindles & VFD - Teknomotor / Delta
>> Ebay is also a good source of cheap chinese spindles and VFD's, they're not as good as the teknomotor spindles, but are much more affordable.
www.profileautomation.com.au *AU They also sell pneumatics
>> Personal favorites are Modular Components for high quality ITEM branded extrusion and precision cut, and ProfileAutomation for cheap but good quality extrusion.
Mill, Lathe + Misc Spare Parts
www.calm-aluminium.com.au *AU (Minto, NSW)
>> Calm Aluminium is my go to Aluminium Supplier, they seem to be one of few who stock excellent grades of Aluminium for machining, 6061-T651 & 5083 ATP-5.