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There is a 7I78X2 configuration: 7c81_7i78x2d.bit 

Do you need MPG encoders or high speed encoders+index?

Hmm...

I don't think VFDs really lose that much torque at low speeds.

Maybe at really low speeds they might, but you should be fine.

However, with a gearbox, halving speed doubles torque, which is not the case with a VFD at all.

I have opened an issue:
github.com/LinuxCNC/linuxcnc/issues/3668

Alternatively, could someone please create a bitfile for me for 7c81 with one 7i78 and port P2 entirely for encoders (i.e. at least 3)?

cmorley wrote:

This should be moved to the Qtvcp section..

Done.
Thank you.

I've never moved anything in a forum before, how do I do that?

This should be moved to the Qtvcp section.
Looks promising! Keep is updated! If you get stumped with the programming i can try to help.

Does joint.N.amp-fault-in actually turn the machine off?

Yes, it does.

Not near a machine so i can not confirm this, but IIRC:
Yes it does Disable the machine.
No, it does not trigger e-stop.

Does joint.N.amp-fault-in actually turn the machine off?

Yes, it does.

I don't know about the file size @scotta ?
But scotta made the beta to try and solve my CSS problem. I still have no solution. If you have the RT1052 controller. Let me know if you can get the CSS working on your build.

Hi all,

I want to share an experimental QtVCP macro I am currently working on:
LatheEasyStep.

It is embedded into the QtDragon lathe panel and aims to simplify
lathe programming by replacing manual G-code writing with a structured,
step-by-step workflow (facing, contouring, parting, threading, drilling,
keyways, etc.).

Each operation is configured in its own tab with tool, spindle, feed,
coolant and geometry parameters. The macro then generates a complete
lathe program, including comments and basic safety moves.

Important notes:
- This project is NOT finished.
- The G-code generation still needs restructuring and improvement.
- I built the first working version with the help of AI, then refined it
  manually. I am very aware that this often leads to suboptimal structure,
  which is exactly why I am asking for feedback.

What I am especially looking for:
- Suggestions for a cleaner G-code generation architecture
- Common LinuxCNC lathe pitfalls I should explicitly handle
- Ideas for improving safety, validation, and workflow
- General QtVCP / QtDragon best practices

The project is GPL licensed and available here:
github.com/peter-pan08/LatheEasyStep

Critical feedback is explicitly welcome. I am more interested in doing it
right than doing it quickly.

Thanks in advance!

 

Hi All, 
At some point the S-code could be used to command the spindle speed. The control sends an analog voltage to the LARRIOZ speed control card. The card reads a sensor that counts spindle revolutions and compares it to the commanded speed. The card can then switch relays, that in turn switch the contactors driving the motorized CVT transmission between spindle and spindle motor to increase/ decrease the spindle speed as required.
 
This never worked since I got the mill. I did at the time try to get it to work, but due to lack of knowledge and/ or documentation, I could not get working. I would think that the lithium battery in the Dallas non-volatile SRAM would be long gone, but I am not sure what would be stored in SRAM. I assume (While I know not to assume anything) that the firmware would live on the EPROM and the SRAM might hold parameters relating to the specific installation. Other than JP 1(Jumper), and P1 (Potentiometer) there is no other configuration or programming port on the LARRIOZ HABIKON1 board.
Although slow, I prefer this system, as I would not sacrifice low speed torque, as would be the case with using only a VFD for speed control.
I suppose it would be fairly easy with modern microcontrollers to get the system going again, but I would be happy to hear from others as to their experience or suggestions as to how I should proceed.
Regards
P
 

langdons wrote:

Also, how can a person do roofing, plumbing, parquet flooring, and CNC?

Multi-talented! perhaps too multi-talented!

Stop offending people, i will not warn you again!
Instead, go read through this forum, watch pictures and videos, you might get some appreciation about what our members here are capable off.

It would probably be a good idea to add MaHa's G10 solution to your startup code..

endian wrote:

Did anybody get it to run with Rods guide??

E.

I don't think it works.  The master is meant to sense if of EoE is available but 2 things collide.
1. There is a bug affecting this drive in the ethercat master
2. the Linuxcnc  driver does not support EoE

I think without the bug it should fall back to supporting non-EoE mode but its a long time since I looked at this.