hi im trying to check my dir voltage on eg:-pin 2 for mach3, im just getting a constant 3.26 volts.
ive check settings in pin n ports.. is it my port..
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hi im trying to check my dir voltage on eg:-pin 2 for mach3, im just getting a constant 3.26 volts.
ive check settings in pin n ports.. is it my port..
Are other pins the same? Is it a laptop?
Ideally you want 5V.
yes its a laptop... does that matter.. i get the 3.26v even before mach3 starts up. also, when i remove the port in device manager it goes to 5v...
Laptops are well known for not running having substandard parallel ports and thus not running mach3 very well, if at all. Have you got a spare computer with a parallel port you could compare it to?
yes a compaq, never used lol. mrs brought it from work. that will be the machine i will probably be using when the work shop is built, ill give it a try...Quote:
Originally Posted by Jonathan
It sounds as if you may have the port configured as inputs which gives a floating high impedance. Alternatively you may require a pull down reistor between the output and signal ground.
Russell
mach3 dosnt seem to be communicating with the port... as i said before im getting a constant voltage reading, of 3.267.
when i uninstalll lpt drivers in device manager i get a constant 5v,,,
when i press the curser keys to try and see voltage should i get a change in the on sceeen coordinates (are the called dro)
as i get nothing in mach 3.
ok read i should have port as ecp in bios...
and something weired...
i start my laptop (with meter still connected) i get a steady 4.77 volts. then i start up mach3 and still the same. as soon as i shut mach3 down i get 25mv.. i went bach into mach and nothing 25mv.
Yes, when pressing the arrow keys, or pg up/down they should change. If not then it's probably in emergency stop mode. Have you (for now) disabled the emergency stop, or is it flashing? Go to config->ports and pins and look for e-stop, then change it from active high to active low (or vice versa, i.e. invert it). That should get it running...Quote:
Originally Posted by crossleymarko
its now in active low.ports n pins inputs...! pin is 0 still enabled. still no number changes, when pg up etc is pressed.. is this the root of my problem...
done driver test, system under mach controll
might i add i have nothing plugged in.. ie breakout board etc.. software dosnt do anything when cursers are pressed.. maybe thats part of the problem.. no cooordinate change at all.
That's a problem. Try going on to the MDI tab and in the white box type:Quote:
Originally Posted by crossleymarko
G0 X10
That should make it move to X=10 and you should see the numbers count up on the DRO. Send a screenshot if not...
No idea what's going on. Come home and drop working. Coursers PG up Dec. Still odd voltage reading. Messed about and now back to square 1.
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Have you tried running the Mach driver test?
just read this sorry.. any wayQuote:
Originally Posted by crossleymarko
got home and all was working.. apart from voltage change on paralell port.
messed about reinstalling etc and i lost dro function. ive installed and uninstalled 20 times still no joy...
and then i came accross this post..http://www.machsupport.com/forum/ind...?topic=17552.0
so i deleted the mach3 driver and dro is working.. but still no communication to my port.. arrrggghhhhh
ive tried every bios setting.. no joy on the laptop.. i would of tested my desktop i have but im a couple of cables short..
Silly question:
When LinuxCNC starts up it will disallow all control of the machine until the user clicks the magic EStop button - effectively saying they are in control of the machine and the environment. If I remember Mach works in much the same way, a big red stop button perhaps? Have you clicked it?
Yep about 40 times all ok.. it said
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Any limit or home switches configured?
well its deffo the mach3 drivers. reinstalled them and hey pesto no dro movement, so i disabled my lpt1 port and tried that still no dro but had a constant 5v voltage on pin 2... whats going on at all.
no none.. estop is enabled, port 0 pin 0
not silly at all any input is welcome..Quote:
Originally Posted by ecat
but yes the reset button is clicked on start up.
When the mach driver installed no dro. Also I have a constant 3.26v from boot up. When I close mach3 software down I get 0v. When mach3 driver is disabled dro changes and v from boot remains at 3.26. Even when I close mach3.
Think I'm gunna try another machine.
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ok so rebuilt this hp desktop, installed vista.. ( 3 of my xp disks) wont install.. scratched to buggery... so ive tried vista.
ok all works.. voltage up/down etc..... wehey!lol... BUT!!!!!
my voltage is only 3.3v.... aaarrrggghhh lol.
now on the disk i got with the software, there is a read me file that says to install memoryoveride reg file.. or itll crash on startup.. it hasnt though...
how do i get the 5v needed..
cheers all
ok got it breakout board supplies 5v... slowly getting there.. am i right...lol
so ive tested pin 2,3,4,5 al work x,y,z,a.. ive tested cable... all connected .. my next miff is the break out board..?
on the x-1 i have xn,xd,xs,xe. same for y-1 and z-1 i tested all terminals to check voltage.,on the x terminals i get voltage change on the xs terminal.. on the y i get change on the yd terminal and on the z no change just 5.11v.. is it a faulty board...
thanks
First are you still on the laptop or desktop.?
If laptop then forget it they are just too unreliable due to heavy memory management and Mach's driver really doesn't work well with most Lappy's. To use a Laptop reliably you need an external motion controler like smooth stepper, this is how laptop runs machine I use.
If it's a desktop is it a PCI PP card or built into mother board.? If it's a modern-ish PC then chances are it's 3.3V PP if so thats it there's nothing you can do about it other than use a PCI PP card. Even then you have to be carefull because some use the USB bus to simulate a PP and again don't work with Mach. If you go to the Mach forum you will find more info regards this.
Check the bios to see what the Printerport is set to EPP/ECP etc
Are you actually hooking upto drives and motors like in a full working machine or just testing on the bench.?
Does it have an Estop wired up or the BOB have a charge pump.?
Does the bob need an external supply to activate it's opto's.? some do.!
Also what are you using for a PP cable.? are you 110% sure it's a straight thru cable standard printer cables are very often not straight thru, I've even had some that tested ok with multimeter but still had some trickery built into the plug that switched signals.!!! (Drove me F'~@ing nuts)
Have you done the Mach driver test.?
Also can you post the Mach XML file your using, it will be in the Mach folder under the same name as the profile you use to load Mach.
This will make it much easier to see if it's just a PP setting issue.? I'm curious because some where you mentioned port 0 pin 0 for estop this don't sound correct and it could be that your port address is wrong.?
i feel ppl are thinking "man this guy is demanding" hahaha.. sorry ppl just tryin to learn a new trend...
thanks all who have inputted.
hi thanks its a desktop pc now.. with onboard pp, i wasnt gonna use the lappy anyway.. but me being me had to play, and yes im just bench testing, (not even got motors yet) so testing what i can.. did a continuity test on the lead... mmmm trickery eh! well it came with the bob and 542 drivers. so who knows.. i think tomorrow ill test voltage through the lead would that help... how did you sort it...Quote:
Originally Posted by crossleymarko
yes the bob uses usb power...
so the 3.3v is converted by the bob.. to 5v is this right.
which terminal should i be getting my voltage change on the bob.. ie xs or xd...like i said xaxis is x-s and y is yd
think thats all
Port 0, pin 0 ?????????Quote:
Originally Posted by crossleymarko
should that be port 1, pin whatever ?
Ermm what bob is it.? you don't need 5v just a big enough difference between Hi and Low at 3.3v there's not a big enough differential and so unreliable signals.Quote:
Originally Posted by crossleymarko
Give me some details of what you have and I'll have a look.
i watched a setup vid on utube.. he had estop enabled, port 0 pin 0.. is this wrong, what would this settin do.Quote:
Originally Posted by John S
Yes it should be port 1 and then the pin you assign it to on your bob.Quote:
Originally Posted by crossleymarko
Like i said before post the XML file and I can load it into Mach here and check it for you. Often it's just a simple setting that like this that stops every thing working.?
http://www.ebay.co.uk/itm/CNC-Router...#ht_7034wt_972
heres the kit. i dont have an estop so i thought the settings pin 0 port 0 still enabled was ok , sorrry,
ill send files now
http://dl.dropbox.com/u/19756368/Mach3Mill.xml?dl=1
http://dl.dropbox.com/u/19756368/Mill.xml?dl=1
these are the 2 mill shortcuts i have.. i use each one... as you can see on my desktop i have mach3mill.. and mill..
its a fresh install of vista..
Do you have manuel for the Bob which gives the pin settings etc.?
Don't use the Mill xml it's all screwed up.
i dont (i think) ill delete it...Quote:
Originally Posted by JAZZCNC
ill have a gander
whos manuel... lol are you on ya jollys jazz...hahaha
No but i'm not working tomorrow that why the late one. . . See PM.
Manuel.!! . . The spanish waiter . . Ce Mr fawlty. . Lol
Bed time.!!
hey jazz, heres the pdfs sent with bob,,
http://dl.dropbox.com/u/19756368/Use...board.pdf?dl=1
that 1 post took 2hrs....arrrgghhh. friggin laptop.. gonna sort it when i get a min.