Hey Guys,
had to take a real long pause into the design and construction of my router.
The goal is to make a router that can cut wood, mdf and aluminium.
Desired accuracy should be in the 0.1mm(.004inch) range.
Using rack and pinion gearing, I'd hope to get atleast 50-55 IPM(1270-1400)mm per minute) for positioning. For cutting, if I get 30 IPM for aluminium and 40 IPM for mdf, I'm a happy camper.
I'm planning to use MOD 2 rack and pinion system.
Motors are planned to be purchased from Zapp automation, 2NM holding torque.
link - Zapp Automation Ltd - Stepper motors & Stepper Motor Drivers - Servo motors and Servo Motor Drivers - Ballscrews & linear motion products. : iNTSD233-2 Integrated stepper motor [iNTSD233-2] - £80.40
The frame is made from 150x50x3mm 6063-T6 aluminium. The goal is to literally switch out the frame and gantry once i get some more cash.
Breakoutboard is probably going to be CNCUSB one, Planet CNC
Linear guides are HIWIN HGH/HGW 15mm ones(i'm getting them at a very good discount so they are costing only 20% more than supported round rails with corresponding bearingblocks).
Questions I have right now
- is 2NM enough of a motor to cut aluminium at 30IPM(or slightly less)?
- since my X and Y axis are driven by pinions, and my Z axis by a screw(trapezoidal) how will I communicate that to the machine(or do i even have to?)
Feedback is very much appreciated and if you decide that my design is crap, please explain why