Vivid CNC Router
This equipment requires training. Either it's tricky to use, or it's someone's personal equipment, or it's easy to make expensive mistakes with.
This machine is not presently in service. When it's up and running, a training course will be provided.
It is driven by LinuxCNC and a Gecko G540. It has a high frequency water cooled spindle that runs off 220V 3-phase (generated by a VFD), and the 220V powering the VFD is from a 110V to 220V step up transformer.
The machine needs some repairs!!! Talk to Forest Darling if interested:
- the water cooling setup needs to be reconnected and double checked for good flow
- the Z-axis works, but sounds terrible and needs adjustment to eliminate the excessive friction
- the stepper motors (or their cables?) seem to be overheating, and possibly the Gecko G540 that drives them
- maximum cutting area
- maximum feedrate
- usable spindle RPM range
- maximum tool shank diameter
- electrical power requirements
- overall machine size/weight
|Axis||Microsteps per revolution||Motor Gear Teeth||Driven Gear Teeth||Pinion Teeth||Pinion/Ballscrew Lead (in)||Steps per inch|
|Axis||Max Velocity (in/s)||Max Acceleration (in/s2)|
Max travel settings:
|Axis||Min (in)||Max (in)|
Technically the controller is LinuxCNC, but the hardware side of things is a Gecko G540. The G540 typically connects to the parallel port on a PC running LinuxCNC or Mach3 generating step/direction pulse-trains that ultimately drive the stepper motors.
The G540 has on-board stepper motor drives, an analog spindle speed output as well as some relay outputs for forward/reverse, limit switch inputs, and an optional watchdog timer that shuts everything off when communication times out (the controller is configured to generate a square wave on a specific pin to prevent the timeout).
The parallel port pin assignments:
|2||out||Y Step (right)|
|3||out||Y Direction (right)|
|4||out||Y Step (left)|
|5||✓||out||Y Direction (left)|
|17||out||Spindle CW (forward)|
OEMOTOR 57BYGH433-06BS LOT NO: 201304
Above links taken from: 380 oz-in NEMA 23 Stepper Motor, 1/4" Shaft - CRP100-00-01 | Avid CNC | CNC Router Parts
TODO: determine if all axes use the same type of motor
HY GFZ-80-1.5 Ø80x188 220V 1.5Kw 5A 400Hz 24000rpm
"HY" is probably for Huanyang, the same brand that makes the VFD. The spindle is a ubiquitous and possibly generic 1.5kW 80mm water cooled spindle similar to this:
The spindle uses ER-11 collets.
Both of the water inlet/outlet compression fittings have been broken. The spindle has M8-1.25 threads for them. One was replaced with a spare, but another spare needs to be acquired.
The VFD runs off 220V. A 220V step up transformer is used, make sure to use the 220V output on the front and correctly set the input voltage to 110V on the back as shown in this photo:
The VFD is controlled via FWD/REV run terminals as well as a 0-10VDC analog (or PWM) spindle speed signal. The 0V and 10V voltages are provided by the VFD. Here is a photo of the wiring on both ends:
|Wire Color||VFD Pin||Gecko G540 Pin||Function|
|yellow||FWD||5 "Output 1"||forward run|
|black||ACM||7 "VFD GND"||VFD analog 0V|
|red||10V||9 "VFD +10VDC"||VFD analog +10V|
|orange||VI||8 "VFD Output"||VFD speed command (0-10V analog/PWM)|
And the power wiring:
A replacement water pump for the water-cooled spindle has been ordered, it's the same type that the K40 uses: