that looks like the one i have from them... havnt tried it powering steppers though but should be ok at 3 * 2amp max (you will rarely be at max on all 3 axis)
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that looks like the one i have from them... havnt tried it powering steppers though but should be ok at 3 * 2amp max (you will rarely be at max on all 3 axis)
awsome. just ordered it
try the psu out yet?
No mate, been away with the job, so come next weekend when i get back i will be full on it
So such a long time i have had to play with the lathe.
The new psu works brilliantly, still need to test the new board for control but the current one works very well, all spot on, no cutouts!
BUT...
I have been thinking about selling this project on.. I'm finding more of a need for a CNC Mill/Router around A3 sized bed if poss!
Stu
So yeah, this is going up for sale.
Im in need of a Smallish router/mill,
Working area 300x300x100 ideally, if anybody is interested in this, pm me and we can chat
so i now have everything working, all measurments are correct and calibrated.
just a few things i hope you lot can help with,
Emc sees the tool coming from right to left (thats ok) but from the bottom up, and my tools come from the top down...
the other issue im having is cad/cam for emc lathes :(
Stu
You just need to change the direction for the axis in stepconf (check the "invert" box next to the direction pin on the parallel port setup page).Quote:
Originally Posted by cooliced
Thank you mate
Just to update you all and ask for a little help,
I have got the Spindle v3 DC/DC board from DIYCNC.. i dont wanna mess wiring this up!
Can somebody give me a little direction how to wire it to the existing hardware..
Thanks for any help
Stu
Ok got the 12v sorted, the gnd/step/dir sorted, v-out sorted...
im stuck on the last three bits, NO/C/NC ports,,,,, what are these for and what would i wire to them?
Please help
Stu
That's the output of the relay, if you're using it, the "NO" is the normally open connection, the "C" is the common and the "NC" is the normally closed connection. What that means is the relay will make a connection from the common to the normally open when the relay is energised, and when the relay is not energised the common is connected to the normally closed
I've used this for controlling the spindle go relay.
So if i get this right. i should be wiring the NO and C to the contactor where the old Controller (spindle Fwd/Spindle Rev) was wired into?
Basically yes, the relay on the v3 switches the contactor on.
So i cannot get this bloody spindle moving with the spindle v3 board
i have included a pic of the contactor and the wiring diagram that i have...
im stuck where to put the NC/C/NO wires
Anybody help
Stu
Attachment 3836
Attachment 3837
im loosing my mind over this, anybody help please lol
You're not going to get fwd/rev and speed control from that board alone, unless the gemini has other wiring options, or you rely on the gemini not turning the spindle when fed with 0V.
To get a single speed, you need to use the NO contacts to supply 240V (I think looking at the diagrams, but double check that's the power the contactor needs) to the fwd coil on the contactor.
To get fwd/rev, connect 240V to the C terminal, then fwd to NO and rev to NC, but then one part of the contactor is always going to be active, unless you use another method to cut the power to C terminal.
I'm sure you'll of already figured out where the 0-10V bit goes...
For now i think i will be happy with fwd motion lol
I have a vari pot for the 0-10vdc for the gemini and a massive stop button for the spindle (i.e. stopping the 240V at C)
Ive tried searching for info on the contactor but coming up with nothing :S
Ill have another go tonight
Thanks
remember you've got a slant bed lathe and the turning should be done in reverse, you could mount the toolholder below the stock and turn forward, but the saddle will not have the support it needs.
and drilling must be done in forward
lol so i need to get it going both ways.
Still a little confused where the wiring from no/nc/c should go on the contactor :(
there are 2 contactors together, one turns the spindle forward and the other spins it in reverse. If i remember correctly the feeds for each contactor are on the right hand side about half way down.
the no/c/nc is basically a toggle switch
it switches the c to the no when you turn it on and back to the nc when you turn it off.
What do you need to know about the contactor?
Looking at the wiring diagram, it's an interlocking contactor, which means only one set of contacts can be active at any given time. They're typically used for motor reversing, as if both were to activate at the same time, the power supply (in your case the Gemini drive) would be short circuited, leading to fuses blowing/magic smoke being released.
ah right i get it now,
at this time im still confused how i should be wiring this up....
Also would i be right in saying i would need two spindle boards for each direction?
sorry if im being stupid, my brain is fried from this at the mo
If you need both directions, then all you need to safely control the spindle, is another way of switching the power (a relay is the easiest option) going to the spindle board relay (C terminal).
Connect the FWD contactor coil (after it's passed through the rev part of the contactor) to the NO terminal on the spindle board, and the Rev coil to the NC terminal (again after it's passed through the fwd part of the contactor). Then you have the other relay switching the power to the C terminal on the spindle board.
That way the direction signal to the Spindle board controls the direction (it switches the relay on the spindle board), the step signal provides the 0-10V analogue out to control the speed via the Gemini, and the extra relay switches everything on and off.
right so i have it all wired up now, i took the time to trace everything from the wiring diagram and from your help i think i have it..
Now i just need to work out how to toggle the Step and Dir on the Spindle board to control the speed and direction :D
I cant seem to get either Mach3 or EMC2 to work
I know how to set Mach3 up, as I just done that on my lathe this week!
First you need to set the right step/dir pins in Motor Outputs, then on the Output Signals set the pins for controlling the relays according to the output #'s set on Spindle Control. You'll want to set the same output # for CW/CCW in the Relay Control (top left), and use that to control the additional relay that turns the supply on/off (the direction is controlled by the dir pin)
Then you'll need to set the values for the Spindle in Motor Tuning to give the desired step rate for providing the required step rate to the V3 board, Which having had a quick look at the manual, is 2000 steps per second for 10V output, so the figures you put in Steps Per, and Velocity per min, need to multiply to give 120000 (2000x60sec). Also remember you need to save the settings before closing the motor tuning box, or any chances won't get saved, and to make sure the pulse width is set to something other than 0.
And after that, set the pulley speed in the Spindle Pulley config.
Then in the manual screen, clicking spindle should power up the relay, then entering a speed into the S DRO and hitting enter should see power appear on the analogue terminal. Personally, I left my motor drive disconnected until I was happy I was getting the expected power on the analogue pin, and the relay was working how it should.
Having written all that, do I remember somebody mentioning that the Gemini doesn't need the full 10V?
If so, adjust the step rate in Motor Tuning to get the desired voltage, if adjusting the V3 trim doesn't decrease it enough.
Thank you so much for your info but i think im either doing something wrong here or im dunce
So here is a break down what ive got set
Ports and Pins
Spindle: Enabled, Step Pin 7, Dir Pin 8, Step Port 1, Dir Port 2
Output Signals
Output #1, Port 1, Pin 8 (Dir)
Spindle Setup
Relay Control, CW output #1, CCW Output #1
Motor Control, Use Spindle Motor Output (enabled), Use Step/Dir (enabled)
I have tested the NO/C/NC connections buzzing out when its switched but nothing happens.
Also VDC testing on the 0-10v output on the Spindlev3 isnt changing at all, stays at 0.02vdc
Stu
you need to change the dir port to 1
Lol it is at 1, don't know why I put 2 lol
do you have the outputs enabled
are pins 7 and 8 duplicated in port and pins / motor outputs
They cannot be duplicated.
you also need to set an output for the speed signal, eg, output 2 pin 7 port 1, and enable it.
another thing worth checking, go into the setup of the computer bios and set the parallel port to epp
http://i200.photobucket.com/albums/a...y/cbfd4883.jpg
http://i200.photobucket.com/albums/a...y/d879f8ea.jpg
http://i200.photobucket.com/albums/a...y/e5862a40.jpg
I set the bios option like you said, ive not enabled another output on pin 7 yet as i want to see the relay switching first :D
Thanks for all your help
Cooliced
Pin 7 & 8 is fine for generating the voltage to the speed control
But you need another pin for Forward and another for Reverse (If you need reverse)
Otherwise you seem OK
Phil