[Maxpower50]

I Am completely fresh on Cnc machines, And has purchased a machine MACH3

Hope there is someone who can help me. I stand completely stuck and bewildered

as it is not mounted Limit / Home switches on , I'll use switches optical

The machine has already mounted a contact limit on the back of box mounted with wires in blue red black green I read

user guide and there I see picture Con 5 con6 con7 can limit and nife ??

as long as the connection of IN ** and GD on it ?? This I do not understand


I will be using optical switches marked with VSG i supose its volt signal and ground ?? On the card it says vc in Gd How can i connect this opto in serial for limit and home ?


To connect up these switches on Limit and Home And Has no experience in electrical symbols signs of this maybe someone here can help an inexperienced possibly assist and tell me how I should connect to Using already assembled Contact ?? Or use open ports solder wires on con 5-6 and 7 When the optical switches need 5v ,

5 volts I get on vc on con 5 -6 and 7, but how to connect this ??
Since there is already a socket mounted ?? and the manual say some else i dont understand

I am willing and pay someone help with this

[SG50]

Please read Mach3 installation and config manual: Chapter 4.5 Limit and Home switches.

http://www.machsupport.com/wp-conten...all_Config.pdf

This is what your red optical switch pin connections should be like block diagram. V, S, G.

Attachment 264822

How To Set Up A Photo Interrupter (or Slotted Optical) Switch On The Arduino | Utopia Mechanicus

Please see your machine's instructions. The S = signal to con5,6 or 7 which correspond to the DB25 ( parallel port )

According to table -
con5 - 12- Z Home
con6 -11 - Y Home
con7 - 10 - X Home

Edit: VC = 5volts, INxx = S, G= gnd

G= Gnd Check if you have 5volts Vcc on the blue board if not then you have to supply 5 volts from somewhere else.

The Limit 4 pin connector/cable at the back of box imply it's already supplied or comes with the machine?

PS since con 5,6,7 connectors are not populated or added it's your choice to add or solder direct but I recommend to add them.

[Maxpower50]

Wow Meny thanks Then i have the last Question here The limit 4 pin already there so that mean i have to solder con, 5,6,7, to the already limit 4 pin I suppose that what you mean

so then i just have to add this to the pin 4 ??


The swiches connect as serial ? There are several differend vays to wire this up , My eny now can help me make a fast diagram so i now how to connect the limit and the home according to the blue board in first tread , I am sorry iam so confused , I get 4,99 v on vcc on the board . I have seen meny dravings around but i get confused becase i dont have eny skills on this . So i am Wery greatful for all help i can get to make this working

[SG50]

Wow Meny thanks Then i have the last Question here The limit 4 pin already there so that mean i have to solder con, 5,6,7, to the already limit 4 pin I suppose that what you mean

so then i just have to add this to the pin 4 ??


The swiches connect as serial ? There are several differend vays to wire this up , My eny now can help me make a fast diagram so i now how to connect the limit and the home according to the blue board in first tread , I am sorry iam so confused , I get 4,99 v on vcc on the board . I have seen meny dravings around but i get confused becase i dont have eny skills on this . So i am Wery greatful for all help i can get to make this working

VCC = 4.99V is good---------------------> VC?

Sorry I'm confused, are you sure there are no limit switches on your machine.Since there is a 4 pin connector wire to the board with blue, red, black, green wires to back of 4pin connector at the back of the box, there should be this cable that should be included with this machine that connects to the limit switches ?
Please read your machine's instructions to confirm it this is the case. Thank you.

[Maxpower50]

No there is no swiches on the machine at all , I get confused becase its already a connector on it , so iam not shure that for home ore limit and what about the con, 5,6,7, Shud i connect them to the already connector ore ?? Thts reason why i need some can draw up how i connect the swiches and were to connect them i have vdf and also want to connect the emergensy stopp.

The manual for this cnc they want giwe me in china so its a chubby case

[SG50]

No there is no swiches on the machine at all , I get confused becase its already a connector on it , so iam not shure that for home ore limit and what about the con, 5,6,7, Shud i connect them to the already connector ore ?? Thts reason why i need some can draw up how i connect the swiches and were to connect them i have vdf and also want to connect the emergensy stopp.

The manual for this cnc they want giwe me in china so its a chubby case

If there is an Emergency stop button on the front of the box then there is no need to add it.
Does the machine manual tell or show how to connect the limit connector at the back of the box?
Or the limit switches?