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@phillc54:
I really shouldnt post at midnight. You are right. Lines with R90 were added by me manually and should be commented out.

"The second N12760 should have a J value of -89.450, not -89.500"
- yes and no, really. From the CAM the precision is fixed to 0.1 so therefore it is "correct" in this case. I really just need to adjust tolerance in linuxcnc somehow, because no possibility to change presision in cam. 

The source G-code is originally generated for esab NCE290. ";File converted successfully;" Means, it went trough parser which converts it to linuxcnc readable code without unknown command confilct (values are not checked).

If you are interested, there is complete program from CAM.

 
just to show you, how the code looks before


 
after converting to Linuxcnc readable code

Hi, thanks for the reply. I don't understand how this would create play. I designed it this way specifically to reduce backlash. I only need a travel of 45 degrees both ways and it needs a lot of torque to the weight of the spindle and motor being offset from center. The linkages are designed to have press-fitted bearings with dowel pins inside so I feel there should be no play. Also, the position of the ball-screw and the length of the linkage were designed to make sure that within the desired travel there are no dead spots. Is there something I am missing which you feel could result in backlash? Thanks again

Don't do this design! Do it worm gearbox . Just to make the project a success. There should be no play in the spindle.

Moin Juergen

den gut gemeinten Rat nehme ich gern an. Im ersten Step kann ich ja mal den Stecker in der Steckdose umdrehen, dann ist ein Großteil bereits über den L-Leiter integriert

Das diese elektrotechnische Gepflogenheit allerdings das Problem löst, denke ich nicht. Ich werde aber berichten, sobald ich einen neuen Stand habe.

Hi Everyone. 

I am new to CNC and This is my first post here. I am trying to build a 4th Axis that is controlled via a ballscrew. In the image attached you can see the motor and bearing for this setup. You can also see the linkages to control the rotation of the axis with the turning of the ballscrew. I wanted to know how I can setup my LinuxCNC to control the axis via the stepper and compensate for the change in angle based on turning the stepper. Thank you for your help in advance, and I apologise if this topic is not covered here. I'm not sure what to search for to find my answer.


 

Well, looks like you have
so you should remove or comment out this line
net remote-estop estop-latch.0.fault-in <= hm2_[HOSTMOT2](7i96S).0.gpio.04.in_not
and replace it with this

So have now put all and only the the information of the G-code properties in that Tab.
I only have not decided yet whether to take the provided time format or parsed to (HH:)MM:SS (2).

Furthermore I think to add the elapsed time of the program next to the progress bar (1). I think this fits well there.

For the tabs - I think it is the best to just remember the last open tab and use this one at the next start than to configure with which one to start.

 

I definitely could've mangled something in the setup, files attached. Like i said before i was going broad strokes with the intention of tuning it in once i got the machine moving but i don't think i mess anything up too bad. 

I want to find rapid speed if i give manually
10v to drives.
Where is this written to gui?

Hey I've got some questions for anyone following. I have a mechanical press brake I am looking to add cnc function basicly just jog two stepper motors to raise and lower the screws that control the height of the die to my designated position. Maybe a back guage that would be pretty much the same. Is linux cnc a good way to go for this or would it be better off to use a plc?

The ini variable is used to get your card settings from the ini file (Mesa 7i96s uses HOSTMOT2 driver)
Pncconf does this but personally, I hate it as it makes it hard to understand your hal file
You need to share your hal and ini files.

4ashishkr wrote:

The attached image is not the exact one but it is looks the same but pitch is 50mm. 

I think stepper resonance is confirmed.
3000 mm/min with 50mm pitch = 60 rpm
10000 mm/min with 50mm pitch = 200 rpm

You need to add some gearing or change your lead screw pitch so you move the resonance RPM zone out of the operating range.

The attached image is not the exact one but it is looks the same but pitch is 50mm.

We're getting somewhere!

So i went to line 258 and changed the signal name like you suggested and now i am getting a new error. It doesn't seem to recognize the way i called the pin out. I wish i was more familiar with how to trouble shoot these, see error below:

i don't know what the HOSTMOT function does in this context but its not in anywhere else in the file other than being loaded at the top of the .hal file

Can this arrangement (servo drive internal homing) be used together with absolute multi-turn encoders on a dual motor gantry?
I'd like to use the multi-turn encoders to get away from home switches if possible...