Topics

21

Modbus / Mod Bus VFD control and smooth stepper ethernet

« on: November 11, 2014, 02:02:50 PM »

Can i use the modbus serial to control my VFD  along with the smooth stepper controller for my I/O?

thanks john

22

General Mach Discussion / 2.5 vs 3 axis whats the difference

« on: November 03, 2014, 05:11:53 PM »

As i dive deeper into the cnc pool im confused by 2.5 vs 3 axis.

can mach 3 do 3 axis

thanks john

23

General Mach Discussion / USB to serial port.

« on: October 30, 2014, 01:08:37 PM »

Will a USB to serial adapter work with the Modbus to the motor drive or do i have to have dedicated serial port on my mother board?

thanks john

24

General Mach Discussion / Step and Direction wire length

« on: October 21, 2014, 02:36:16 PM »

Is there a limit to how long the step and direction wires can be? I want to mount my computer and brake out out side of the main control panel.

thanks, john

25

General Mach Discussion / Powertron dc servo whats the lowest voltage they will run at?

« on: October 02, 2014, 10:58:42 PM »

Whats the lowest dc voltage will my stock Bridgeport DC servos will run at and still give reasonable performance?

I thinking of purchasing the CNCdrive DC servo drive but they offer 2 types a  low voltage and a higher voltage one

So the power supply selection would depend on what derive i get.

thanks john

26

General Mach Discussion / z axis sometime moves the wrong way

« on: September 22, 2014, 12:04:38 PM »

my z axis moves the wrong way sometimes.  x and y are ok

It happens in a program and when I use the manual pendent on the screen.

I mouse click in the arrow u it goes down I mouse click on it again it goes up.

I'm not sure were to look I have checked for loose wires but no luck so far.

Thanks ,john

27

General Mach Discussion / Bridgeport drive power supply wiring diagram

« on: September 17, 2014, 12:41:54 PM »

My keeps popping the supply fuses

Any one have a schematic of the drive power supply?

Bridgeport 1938413 is the part number

28

General Mach Discussion / Parallel port, USB or Ethernet controller card .

« on: September 16, 2014, 02:57:34 PM »

As I start shopping new controller components what is everyone's any advice on which way to go?
I already have a parallel card on my mini mill and have no issues. But parallel ports are getting scarce.

Are there any advantages or disadvantages to each.

Also all the stock control components are for sale

Thanks john

29

General Mach Discussion / Bridgport DC servos what drive to use

« on: September 15, 2014, 09:52:54 AM »

I just got this machine and want to convert it to single phase. I will get a vfd for the spindle but want some ideas on which drive that will work with
the stock dc brushed servos.

thanks, john

30

General Mach Discussion / Just got a bridgeport cnc can I use the stock servos

« on: September 06, 2014, 04:27:45 PM »

Can I use the stock dc servos with bei encoders with new servo drives or would I have to replace the motors to

Can any one recommend good drive to use with them?

Thanks ,john