Advanced Search

In my mill conversion, the quill is manually operated, but it has a magnetic scale, and the scale is connected to a Beckhoff EL5101 encoder input module in my EtherCAT chain.

I'd like it to behave like a simple DRO within LinuxCNC, simply allowing me to "home" it manually when it's retracted and then touch it off in each WCS and show me the relative reading on the DRO.  I have it halfway working by simply assigning the output pin of the encoder (which is configured to be in machine units) to joint.2 motor-pos-fb.  This lets me to see the value in AXIS and home it, so it shows 0.000 when retracted, and will read down to the max extension around -5.000 inches.


# it's a 5um scale, 5080 counts per inch, negative to swap direction so it reads negative on extension
setp lcec.0.5.enc-pos-scale -5080
net 2-pos-fb => joint.2.motor-pos-fb <= lcec.0.5.enc-pos


However, touch-off doesn't work.  It pops up the touch-off dialog in AXIS, but this never changes what the DRO for Z shows. 

Another issue is that I also have to crank up FERROR to more than the full travel so it doesn't think there's a follow error with the joint moving on its own when I use it.

I can also reset the EL5101's encoder counts with it's enc-reset input pin, and I tried setting up something with a HAL oneshot component triggered off of the joint homing signal to force the encoder to reset.  It did reset the counts to 0 when homing, but it didn't help otherwise.

I can't help but think there's a better approach to this, any suggestions?

thanks,
Steve

The direction pin is  GPIO (GPIO8)

So you need to set gpio8's is_output parameter
and link it to the spindle direction pin.

 

Your turret looks nice too.

No i emailed not yet, will try it next week. I just desided this weekend to get it back to life. (hopefully).

But my last ask for documents was for my lathe and they called 300€ just for PDF's -thats out of reavh for me. :/ I think they want to sell new models and not repair the old ones...

I hope Baruffaldi is more hobbirstfriendly!

thanks tommylight for your quick reply. Well, I'm not sure about that in Arc Pilot, that's why I wrote likely. I relied on the information I was able to find on the Internet. However, I have no doubt that you are right and cutter is not an Arc Pilot. Does it change anything? I think I saw somewhere that you have implemented projects with HF plasma and THCAD300. Could you tell me where exactly those wires should be connected? anyway, if it is necessary to make this cutter work with CNC, I also have PROMA THC 150,

I used sudo mesaflash --device 5i25 --write 5i25_7i76x2_1pd.bit --reload

Now I cannot get the direction change working. Is the direction pin of the stepgen still working?
I am using TB3 Pin2 und Pin3 for the PWM.
I tried to find a direction pin.

I can switch the spindle on and off via Axis UI and can also change speeds. (but not the directions)

Did you email mail them and ask for a wiring diagram and a parts diagramm?

While my tool change is not sweet as those I have the same issue.
i will replace the 3 phase motor with a stepper. 
The rest is just turning the motor on to rotate to the next tool stop then reverse the motor to lock it. 

 

Thanks for your fast response, you are right. I also searched on their site for information. Thats why i belive i have the size 120.

But of course they only Show the new products on the webside. And all types are descriped with some type of pneumatic piston.
But my turret hadn't an air hose connected to the machine when i unscrewed it. Just electrical wires. And i think COFAL also just talked about solenoids, elektrical sensors and motors?

This may not help much but I have been using Basic Probe with LCNC 2.9.3 and now 2.9.4 with QTDragon_HD and have not seen this issue.

No, 7I96 TB2 pin 12 is the correct 5V source.

What are the scaling factors that you used?
(there must be a missing hal file  where plasma voltage scaling/offset is done)

They still in business and seem to have there own dedicated controller.

www.baruffaldi.it/wp-content/uploads/201...TB-TBMA-100-2016.pdf

I am using the same probe and probably the same tool setter.  I am using the QT_Dragon_hd UI and Basic Probe not Probe Basic but concept is the same.  I am using whatever QT_Dragon_HD comes with.  I am using a mix of fixed length tools via TTS and random length tools (mostly drills) in a Jacobs chuck. 

For the probe, it is the effective length that you are looking for.  That is the distance from the TTS seat face to the point where the switch opens.  That value will be less that the physical length with the switch not tripped.  What I do to measure that is to put a 123 block in my vise.  Then bring the empty spindle down to just touch the 123 block and note the ABS Z value.  Then I put the probe in the spindle and select tool 99.  Then probe the top of the 123 block. The difference between the previously noted ABS value with the spindle nose on the block and the ABS value of the trip point is the effective length of the probe.  I would do an actual probe of the block rather that manually moving the spindle down until the probe trips.  I think it is more accurate to do an actual probe.  Don't forget to subtract the amount that you have the probe back off of the black after the probe.

I think your issue with getting the "probe tripped during non-probe move" is because you are not in a probing mode G38.?.  It sounds like you are doing a rapid move.  I generally use a G38.2 at speed that is slow enough to find the prod point and then probe very slow when backing of the probe point to get the final probe value G38.2 followed by G38.4 at F1I hope this helps.John
 

I discover that Grizzly rebranded Seig KC6S

I asked they sent me a Manual and parts diagram.

Hello COFHAL,

i am really glad to found your topic. I hope i have the same turret, just one size bigger. I think it could be a TOE120.
Sadly i don’t have a Manual, Schematic, Spec sheet- to be honest it don’t even have a nameplate. i saved it from a beatiful GRAZIANO lathe maybe from the early 1990's? Anyway the machine was scraped with a crane i just could remount the turret in the last minute...

I try to give it a second Life with LinuxCNC, Your Hal, videos and the flow chart are great and a big step forward! Do you have more documentation that you could share? that would be tremendous!




Greetings
Tom

Removed all the old crusty wires.
While I probably could have repaired it is easier just to redo it with updated tech.
All the relays and contractors were 220v coils. Wire insulation was hard and crusty.