Hello. I am very new to the CNC world and am in the process of designing a CNC Machine for myself.
I have been going through a design process and have changed my mind many times but, finally I think I am on the
right track.I apologize if my terminology is incorrect, I will do my best to use accurate terms.

My design plan so far is as follows:

- CNC Router (Will not be using a dremel) Preferrably varialble speed spindle
- Materials I will use are plywoods, Hardwoods, Plastic, Plexiglass and aluminum (Unsure of thicknesses at this point)
- 24 inch x 24inch working area
- Aluminum tubing and aluminum frame construction
- Linear rail and gantry (I think that's the term. Bed is stationary and the spindle is moving)
- 16mm hardened rod for rails
- Linear slide bushings 16mm
- 16mm ballscrew for X, Y - 30" long (Will most likely make my full X, Y dimensions extend to 30" x 30")
- 16mm ballscrew for Z - 9.6" long
- NMEA 23 Stepper motors for X, Y and Z axis
- Arduino control of the system through uploaded G-Code and Inkscape
- System operates of of 120VAC 15A circuit

I have stopped at this point because it seems a bit overkill for my situation. I have not done any torque
calculations to know whether this is too much or not enough. My policy is always "more is better". I do have budget to consider however.

I also need to figure out my current specs for the motors which will depend on the gantry and weight of moving components and
spindle resistances.

My questions are, is this overkill? Am I on the right track?

Thanks in advance for any responses.