CNC 3040 Collet size and other questions?

[camhguh]

If may ask some really basic questions, is there a basic setup guide for Mach3 with the CNC 3040 with YooCNC controller anywhere that anyone could point me to?

Yes you can download the machine manual from the ebay sellers site and that contains the basic mach3 settings

http://www.jinlantrade.com/ebay/3020t/CNCusermanual.doc

Basic assembly, the cap screws holding the steppers are presumably HT steel is it advisable to use some antiseize paste, coppaslip, graphite, Loctite 2 million quid a tube type stuff to stop them welding themselves in?

If you already have any of those then they wont do any harm but i wouldn't buy specifically, never found removing cap screws from aluminium a problem even in harsh areas

As far as can understand from other forum posts CNC3040 and other Chinese spindles are likely to have an ER11 chuck, though some mention that it may be an incompatible ER11b chuck (?) .

Yes i have read this as well and would like clarification also before purchasing a set of cutters.

If can establish and how, what king of chuck is mounted , is it as simple as changing the collet to accept 1/4" cutters?

Yes you need a collet that will take the shank of whatever drill size your using and I believe that the max for ER11 is 6mm

It is certainly an interesting learning curve :)