yes on page 3
right, yeah active low ..
in the hal file, add lines like:
BUt .. I suspect the are edge triggred anyway
setp parport.0.pin-02-out-invert TRUE
for each parport pin that is being used for a CW or CCW signal
jmkasunich: coo, I can feel the awesome power of HAL even from here :)
robin: with CW and CCW signals there may be interlocking, it may only accept a pulse when the other input is inactive
but as you say, piece of cake to solve with HAL anyway
John, is that for the "+" ones or the"-" ones or both
the plus ones get connected to +5V (you will have a total of six wires connected to +5V for a three axis machine)
the minus inputs get connected to parport pins
again a total of six pins, probably pins 2 thru 7
you will need to invert pins 2 thru 7
those motors should fly nicely on those drives ...
pity no torque curves though
Ok, Thanks. Well I hope this does the trick its been a long voyage.
note: be very carefull with that plus 5V... it is coming from the PC power supply and probably has enough current to smoke the wire if you short it to ground
no sloppy connections, make sure it is well protected from accidental shorts
I have a torque curve here for these
or put a 27R resistor close to where you pick it up ...
a 27 ohm 1/4 watt fuse?
The torque is max a 675 pulses per second and falls off exponentially from there
not quite 3.5 revs/sec
so you need to run above that fro max power
are these connected directly to the leadscrews, or are you using belts/gears/etc?
chain drive 2:1
big sproket on motor or screw?
* robin_sz check to see if it is 1903
tpi on the screw?
gonna be slow :)
so 20 revolutions of the motor per inch
and 3.5 revs per sec at max torque
step motor are constant power above that point
What does that equate to in Ipm?
10.5 ipm at that point
I can live with that
given 1200 oz-in, I'd probably get rid of the 2:1 ratio
beats the 2 im at know
this is basically a mill-drill, right?
1200 should be plenty for that
sounds more like BP sized
500-600 lb machine, right?
ok, big mill-drill
no knee though?
should be able to get 20 to 30 ipm out of it I reckon
anyway, first get it turning, then get it fast
leave the chain drive on for now
acme or ballscrew?
I have to at this point
actually my first step would be to remove the chain, so the motor can spin freely
Im guessing acme
gonna need some turning
then get the motors running, and only once they are running, then connect up the chain
that way if you have problems (like only going one way) you don't have to constantly stop and wind the table back
Thats no problem to take out master link
[00:14:11] <robin_sz> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=11834&item=7526274976&rd=1
it will be mine .. oh yes, it will be mine
and you could also test the motors using freqgen and HAL (if you were able to IRC from that machine, I could probably walk you thru that, but since it is another computer with no internet, that won't work)
jmkasunich: I dont understand
my personal method for bringing up a motor with emc2/hal
I thought for a moment there you said someting about a computer with no internet ...
load only the parport driver and stepgen or freqgen, and run the motor from the command line using HAL
yes robin, there are those in the world
bpmw's machine is in the garage, and is sadly disconnected from the net
can we buy him some wire?
I have to eat supper now and then I will hook up drive as you sugessted. Will check back later, THANKS to both of you!!!
good luck from me too
although why you need good luck to eat supper is beyond me ;)
Bye for now!
maybe he's eating fugu
Hi guys, what is the url for todays logger?
I went to print out instructions and got yesterdays sesion
you went to the wrong URL
Is ther a new one everyday
I'm logging. Sorry, searching removed.
I'm logging. I don't understand 'url', robin_sz. Try /msg logger_aj help
I'm logging. I don't understand 'link', robin_sz. Try /msg logger_aj help
bookmark, thats it
Ok, greatthat has the info i was looking for. THANK YOU!!!
Ok, now I'll see ya later!
[01:03:50] <cradek> http://www.cbc.ca/cp/business/050630/b0630102.html
cradek : No shit huh.
cradek : Though, there are smart folks in other parts of the country
Jymmm is now known as Red70sShow
Red70sShow is now known as Jymmm
Hi John/ Robin, no luck can't even get stepper to turn 1 rotation. I give up!
Hmmm, I guess I scared him off:)
* Phydbleep was watching the netsplit.
Phydbleep what's to watch?
Everybody splits.. Everybody rejoins.. Lots of server msg spamming.. :)
lol, you're bored huh?
No I'm taking a break from dealing with the fickung plumbing that wants to backup EVERY frikken holiday weekend. :\
Phydbleep : so all your friends and family that come over on the holidays are all full of shit?
Phydbleep : Or... They dump all their shit on you?
No, It's really wierd.. Nobody came over.. The plumbing just goes to hell in time for the holiday.. :(
MSG mshaver_honeydo Matt, when is the next Galesberg rendezvous?
anyone here added custom Mcodes to EMC?
anyone here know when we'll return to the MAZAK in Galesberg?
SWPadnos is now known as SWP_Away
03mshaver 07NML_take_2 * 10emc2/src/emc/nml_intf/emc2.hh: Started commenting on NML messages. Search for MGS to see my comments.
hush little baby don't you cry, cause mama's gonna come drive by with a .45
you american gun nuts...
ValarQ "COME SAY THAT TO MY FACE!"
G'Night Folks =)
hmm, i found some article about my old gun
val you gun freak you! =)
ValarQ you gun freak you! =)
* ValarQ used a M45B when he did military service
heh, i was only sergeant...
close enough ;)