trying to improve my board game

[Jonathan]

what machine did you get in the end gavin? if you dont mind me asking.

We can't safely answer question 5 without knowing!

1) If you want to do it in one cut, then at least 3mm I think.
2) Does it have to be only 1mm? 1mm tools are not cheap and your feedrate will be limited. If you really need a 1mm groove then a circular saw/slitting saw would be faster.
3) Depends on the size of the tool. In general the smaller the tool the higher the spindle speed. If the tool gets too hot reduce the spindle speed. Google it.
4) Depends on the diameter of the tool, depth of cut and all sorts, again google it.
5) Depends on how rigid your machine is. But probably yes.

[cubikoman]

I don't mind chip :-)

I won this routout machine... http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

which meant I finally got round to putting a lock on the shed.

I should be able to tweak the game to allow for a 2mm groove. Anyway, I just ordered a 2mm left-hand spiral flute from Drill-service.com. Can you tell I'm eager to get going?