Hello all , I want to start building my own CNC at home, so before I begin, I want to know some things like:

1. Will this stepper motors work or be strong enough to cut hard wood, acrylic and thin sheets of metal ?

The complete kit is: CNC Kit 3 Axis NEMA 23 Stepper Motor 76MM *3+ TB6560 Driver Controller + 1 Power Supply 350Watts( 24VDC/14.6A)

Specification of 57BYGH76-401A Motor:
Holding torque: 270 oz.in
Phase Resistance: 1,13 ohm
Phase Inductance: 3,6 mH
Lead wire: 4

2. If I make a large cutting area, like 40"x40"x5" ...will these motors decrease performance or cutting speed/torque instead of using a small cutting area ?

3. If I cut acrylic or plastic, will I have problems with heating when cut ? How can I solve it ?

4. What will be the estimated average speed of cutting or how to I calculate?

5. What parts do I need to measure if I want to make a customizable sized cutting area ?

6. And a dumb question:P - if I want to cut a piece of wood as large as the cutting area..how do I keep the wood in place without interfere with the drill? :withstupi

Sorry if I posted in the wrong place and sorry for my bad english, I'm new