Dealing with the motor sizes and what you will be designing structure wise, being a metal structure or wood structure. Also the which method in driving your axis, being roller chain with sprockets, or lead screw/guide rails etc.
Now for a 2' x 4' CNC machine a good overall machine will do excellent with our 425 oz inch 3 axis electronic combo, but if you are looking at a stronger firmer and industrial purpose machine our 651 oz inch 3 axis electronics combo will be your best choice.
Now for your router that will be your preference on overall performance and affordability, we recommend a PC 890 series, although we preferably choose a spindle/inverter combo for the maximum life expectancy over any router and the 90% cleaner and 70% quieter over any router out today!
Thanks for the reply. I'm a newbie to CNC so the options seem daunting to find the best solution. I'm a woodworker for 25 years, and by trade an IT Manager in manufacturing. So I'm very familiar with sketchup-pro where I design my pieces. I have watched your vids and Since my purpose will be cutting ply, and mdf, and solid wood mostly cherry for parts, I want a motor that is on par with my 7518. I'm thinking spindle since I'm afraid a standard router will overheat. As to motion type, I'm still learning which to choose. I don't know which is better chain leadscrew or rack and pinion. Obviously my budget is not unlimited, so the 3k range is where I'd like to stay.
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Ok, been lurking for a long time and trying to determine motor size for my application. I am a woodworker and only looking to 3 axis, and trying to determine motor size. I imagine a PC7518 as my motor and table 2'x4'