Home -- Design -- Details -- Electronics -- Box -- Spindle -- Y-Axis -- Table -- Build -- Laser -- Accessories -- Software -- Notes -- Projects
After completing the 2nd 3018 cnc_machine, I felt I was ready to attempt to make a larger machine. I wanted to be able to cut 4x8 or 4x4 sheets of plywood.
The belt driven cnc20mm machine is based on stainless steel 20mm tubes and 3D printed linear bearings that utilize small inexpensive ball bearings. It uses these items because it is prohibitively expensive to for me to ship large heavy items like aliminum extrusions and real linear bearings and linear drives to my build location. The biggest and heaviest parts are the lumber and stainless steel tubes, both of which are available lococally.
The version I ended up building will cut a little bigger than 4x4 feet (51x50 inches).
It uses Nema23 motors. These motors are larger than my previous machines and so it requires larger, higher power, external controller boards.
On these pages I will describe and show the following:
- the basic mechanical Design of the machine
- some design Details, including Drag Chains, Connectors, etc
- the Electronics Schematic and PCB (Printed Circuit Board)
- the main Controller Box
- the separate Spindle controller box
- the initial build of the Y-Axis
- constructing the Table (furniture) to support the machine
- assembling and Building the actual machine
- upgrading the Laser from 500mw to a whopping 10W diode laser
- adding Accessories including the Spindle Controller and Vacuum System
- installed and understanding the FluidNC Software for the ESP32
- implementation and historical Notes
- and, finally, a few early Wooden Projects that were made with the machine
R38 18x37 Drag Chain Model from Darko Saric Lukendic https://grabcad.com/library/cable-chain-18x37-1
- cnc3018
- vMachine
- FluidNC
- FluidNC_UI
- FluidNC_Extensions
Next - The basic Mechanical Design of the machine ...