Fire & Bot rescue chief Andy
Sounds like a lot of plywood work for a 1/4 inch bit of any kind. I would guess use at least a 3 flute 3/8th bit of some kind. Vacuum hold down can spread a fire pretty quickly.
The bit people can tell you exactly what to use and the speed and feeds. An up-cut bit will pull the chips out of the wood and avoid compression heating. A bit should just be warm when finished not HOT which means it is dull or working too hard.
Many times it is best just to use the Bot to mark the hole locations and finish them with a regular drill as drilling is hard on the router which is made to cut sideways.
And of course never leave the Bot unattended for any reason... at least until you have posted a few thousand times. Hang in there !
The decimal point seems to be the most important on the z axis... x & y not so much....
ShopBot... Where even the scraps and things you mess up and throw away are cool....