parallel port cable

[spaltiel]

Hi,

I almost done building my 1st machine however I'm having difficulties with the pins of the parallel cable. I'm using "Keling KL4030 with C10 breakout board kit". I would like to wire my parallel cable from the CNC driver to the computer but I'm not sure about the diagram. I have lots of parallel cabels but I'm almost sure that standard printer cable is not wired correctly to operate the CNC driver. Does it standard wiring from pin 'x' to pin 'x' or something else?

Thanks

[CarveOne]

Originally Posted by spaltiel Hi, I almost done building my 1st machine however I'm having difficulties with the pins of the parallel cable. I'm using "Keling KL4030 with C10 breakout board kit". I would like to wire my parallel cable from the CNC driver to the computer but I'm not sure about the diagram. I have lots of parallel cabels but I'm almost sure that standard printer cable is not wired correctly to operate the CNC driver. Does it standard wiring from pin 'x' to pin 'x' or something else? Thanks

You need a 25 pin male pin D-sub connector on each end (unless your CNC driver needs a 25 pin female connector) and the wiring is pin 1 to pin 1 through pin 25 to pin 25. A "straight wired" cable.

CarveOne

[spaltiel]

Originally Posted by CarveOne You need a 25 pin male pin D-sub connector on each end (unless your CNC driver needs a 25 pin female connector) and the wiring is pin 1 to pin 1 through pin 25 to pin 25. A "straight wired" cable. CarveOne

Thanks.
If I understand correctly - all i need to do is to wire pin 1 to pin 1 then pin 2 to pin 2 then pin 3 to pin 3 and so on to pin 25 to pin 25.
I'm double checking because I afraid to make short circuit which might damage the computer or the CNC driver.

I'm rookie with electronics.

BTW I saw that in standard parallel cables from old printers the wire are not straight.

Thanks again

[CarveOne]

Originally Posted by spaltiel Thanks. If I understand correctly - all i need to do is to wire pin 1 to pin 1 then pin 2 to pin 2 then pin 3 to pin 3 and so on to pin 25 to pin 25. I'm double checking because I afraid to make short circuit which might damage the computer or the CNC driver. I'm rookie with electronics. BTW I saw that in standard parallel cables from old printers the wire are not straight. Thanks again

You are correct. Each pin on one end goes to the same pin on the other end.

No grounds or jumpers between pins of one connector or crossed wiring between pins of both connectors. You can buy a straight wired cable at computer stores. A shielded cable is best.

CarveOne

[Steve85]

Spaltiel,

Is that network cable (Cat 5 cable) you're using to hook up your motors? I've read that its current carrying capacity is only around an amp or so (individual conductors are only 24 guage). Then again, it looks like you might be doubling up the cables to each motor, which I suppose would double up the current carrying capacity. Can you fill us in?

Steve

[spaltiel]

Originally Posted by Steve85 Spaltiel, Is that network cable (Cat 5 cable) you're using to hook up your motors? I've read that its current carrying capacity is only around an amp or so (individual conductors are only 24 guage). Then again, it looks like you might be doubling up the cables to each motor, which I suppose would double up the current carrying capacity. Can you fill us in? Steve

Hi Steve,

It is parallel cable with 25 pins like the one which was used to hook up old printers. I asked about the wiring of the cable (which pins to wire).

Amir

[Steve85]

Amir,

I meant the blue wire in your photos that's coiled up under each motor. Is that Cat 5?

Steve

[johnmac]

You want a cable that is wired pin to pin. Some cheap cables cheat, and don't have all pins wired. Very basic parallel printing didn't require all pins to be used.

Try to keep the cable as short as possible. A voltage drop due to an excessive long cable can cause signaling problems.

John

[metalworkz]

Hello Amir,
If you use eBay there are some DB25 straight thru cables for sale at Hubbard CNC for I believe $2.99. The only thing is they are male to female but he has the gender changer available for about the same price. Here is a link:

http://cgi.ebay.com/CNC-BARGAIN-DB25...item4ce8fcf165

Regards,

[spaltiel]

Originally Posted by Steve85 Amir, I meant the blue wire in your photos that's coiled up under each motor. Is that Cat 5? Steve

Hi Steve,

The image is misleading it is standard 1.5 mm cables, not Cat 5. I only arranged the cables to be below the board because I think it is better way to find and to solve problems when having lots of wires. In addition, the 1.5 mm cable is very thick and in the future I will use 1 mm cables instead the 1.5 mm which I use now.

BTW I am already useing my old printers cables with 25 pins which I wired correctly (pin 1 to pin 1 through pin 25 to pin 25).

Amir

[Steve85]

Originally Posted by spaltiel Hi Steve, The image is misleading it is standard 1.5 mm cables, not Cat 5. Amir

Amir,

Thanks for the clarification. For a minute there I was all excited about the possibility of using some of the miles of Cat 5 I have lying around to wire my motors to my driver board , but I guess I\ll have to give it a little more thought.

Your machine looks nice, BTW!

Steve

[C.Des]

Spaltiel,

Where did you purchase the wiring your using for your motors there?