Lpt interface card

[abbe]

Simple 3axis interface kit

[jsteveb]

Well done on the hardware. There is no software source to drive the parallel port. Any chance that this was overlooked in building the zip file?

[pminmo]

Nice simple interface, good job. I might suggest that the 4.7K pullup is to large. The majority of mechanical limit switches are meant to have at least 5ma of contact current to operate correctly over their life.

[chrbau]

Well done on the hardware. There is no software source to drive the parallel port. Any chance that this was overlooked in building the zip file?

jsteveb. Try this on: http://www.colinusher.info/Software/index.html
absolutely free, absolutely great. Does everything for nothing!

[abbe]

Thanks for the suggestions.
IC Data sheet
http://www.st.com/stonline/products/...6/m74hc573.pdf

[raven_darkcloud]

Forgive my newbie question but is this to conect to the stepper drivers?

[smartgsm]

Hello,

i'm looking for optimum schematic for MACH and 3 axis stepper driver.

pin on LPT name

OUT:
2 clk x
3 dir x
4 clk y
5 dir y
6 clk z
7 dir z


IN:
11 x end
12 y end
13 z end
15 e. stop


Any other suggestion?


BR
Greg

[cnc2]

Nice simple interface, good job. I might suggest that the 4.7K pullup is to large. The majority of mechanical limit switches are meant to have at least 5ma of contact current to operate correctly over their life.

Hi man,
I just saw your 4 Axis fast OptoIso interface, & as i'm a newbie i was wondering if it's working and has been tested with UHU servo driver, i'm planning to use it to hook 4 UHU's to my PC, so, am i on the right way or did i miss something ?

I didn't find a user's manual about it, so, i wasn't sure if it was working or just experimental, that's why i'm asking for your help & advice.

Thanks !

Best regards.
cnc2.

[cnc2]

Hi man,
I just saw your 4 Axis fast OptoIso interface, & as i'm a newbie i was wondering if it's working and has been tested with UHU servo driver, i'm planning to use it to hook 4 UHU's to my PC, so, am i on the right way or did i miss something ?

I'm talking about this one http://pminmo.com/4axisopto/4axisDIYopto.htm Does it has all what is needed for a 3 or 4axis milling machine(limit switches ...etc) ?

I didn't find a user's manual about it, so, i wasn't sure if it was working or just experimental, that's why i'm asking for your help & advice.

Thanks !

Best regards.
cnc2.

[pminmo]

Yes it's tested and works and it handle switches. I can't say about compatability with the UHU drive, I don't follow the servo threads.

[cnc2]

Yes it's tested and works and it handle switches. I can't say about compatability with the UHU drive, I don't follow the servo threads.

Thanks for the reply !

I'm happy to know it's working & has been tested, but, other questions:

1) Uli Huber the maker of the UHU board said about the // interface: "The connection to the PC based CNC application is the widespread step/dir interface plugged on the PC parallel port", so, do you think your "4 Axis fast OptoIso interface" can be compatible with UHU ?

Here is the info about UHU driver: "interface: RS232 34.800, 8 Bit, 1 Stop, No Parity" from http://www.uhu-servo.de/servo_en/UHU...0_short_en.pdf do you think your interface is compatible after that description ? (sorry i'm a newbie so please help me)

2) is it compatible with EMC2 ?
3)what driver board it has been tested with ?
4)What is compatible with it for sure ?

Thanks for your help !

cnc2

[blackbeard52]

right off the bat it looks like your board is a serial interface...the opto board is a parallel connection....I dont think it will work but I am sure some more experienced minds will chime in to correct or agree.....

Bob