Advanced Search

Parallel port pin 16, not 016.

Unlocking now.

They are 2 winding type, that's not in question.
There are 6 connections because unipolar drives need
windings with a center-tap. You would ignore the center tap
when using a bipolar drive (series connection).

Note that when using this series connection you would
lower the drive current (so say 4 A instead of 8A)



 

That's an odd error as a parallel port in mode "out" should have pin 16

Can you comment out any line that causes an error, launch LinuxCNC
and then in a terminal type:

halcmd show pin parport

and show the results here

Here is the result after changes. 

Aciera wrote:

Looks like this might be limited to spindle speed and direction pins not consistently reacting to a program stop as 'spindle.0.on' seems to always clear.


 

Good catch. I will look at these pins in case it happens again. I had it only a few times when milling PCBs. Other than that it never occurred...

Hi tommy unable to edit posts in the locked index thead.

Cheers
Rob

Hi,

At the end of this file are some commands like : systemctl restart systemd-modules-load.service
 

Hi

I am currently setting up my 3D Probe. I declared the probe as T99 in the table. In addition to that, I set Variable 4012 in my *.var to 99.
However, when I command the Tool to be picked from the Toolrack, I  get the message "T99 not found in carousel". All the others (I actually tested only Tool 1-7) are working. Is there something I am missing?

One additional question. After inserting the Tool manually, I am using the Angle function. It works so far and I get an angle reported. However, I assume that, when clicking "Set rotation WCO", that the rotation is saved in my WCO. However, looking at the Offsets Screen, it looks like it's still 0 (I assume that would be R?).  Is this correct?

Here's a thread of someone else doing a similar retrofit:

www.cnczone.com/forums/uncategorised-met...253-engineering.html

The existing drives are 2 phase, unipolar, and 8A 
(Unipolar is why they have 6 motor wires because each winding has a center tap)

I think the forum suggestion is good: Replace the drives with standard bipolar
stepper drives but since the windings  are wired in series for a bipolar connection,
use the highest voltage capable drive you can get.

(this assumes you want to keep the motors)
 

Hi,

Indeed links are not working.

Maybe this helps you :
link

Hi,

Modbus should work.
wiki.linuxcnc.org/cgi-bin/wiki.pl?VFD_Modbus

If you have any problems with programming etc. Let us know.


 

I would probably choose a 7I96S setup as it's closer hardware wise to the 7C80.
Then the main changes would be to change the driver name and card name
and all "inm" to "inmux"

Unfortunately the locale bug is a known pncconf issue and the only known work-around
is to set the locale to  english.

If you launch pncconf from a terminal, it may be sufficient to type 

LANG=C

before launching pncconf

Hi Vre,

This for info. I hope you can use it.

The linuxcnc scurve planner has now tangential knife output value to hal.
The hal rotational output value could be coupled to a axis motor or device for rotation.

Within the the planner you can also benefit from the clothoid fillets, where the path
tends to be g3 continu, ideal for a drag knife application.

Great work