Advanced Search

Sam was working on this a few years ago.
Look at this.


It might help.

OK I'll do this tomorrow

99%. Allready flashed it with original 7i92 bit file downloaded from mesa store support zip files. File attached was modified from that zip also.

Thanks, with this component I was able to extract the bits I needed.

Small clarification regarding the README

After reading the feedback I realized that one part of the README may have been ambiguous, especially the section mentioning “Gantry Support” and gantry_manager.comp.

To clarify the intent of the project:

The goal of this repository is not to introduce a new motion or gantry control layer in HAL. Final gantry squaring, coordinated homing and axis relationships are expected to remain in the motion / kinematics layer (e.g. trivkins) as usual.

The purpose of the HAL components in this project is limited to:

separating CiA402 semantics from the transport layer (LCEC / EtherCAT)

providing a deterministic controlword composition path

adding safety gating

optionally handling decouple/recouple situations when a drive performs internal motion (for example CiA402 homing), to avoid command/feedback discontinuities

So any future “coupler” component would only handle safe transition and coupling of drive states, not replace motion-level gantry logic.

I will update the README to make this clearer.

Thanks for the feedback. Just to clarify an important point that I may not have emphasized clearly:

All components in the current tests run in the same servo-thread at 1 kHz, with a fixed execution order using addf. For example:

safety → pds_manager → procedure (UT) → controlword composer → driver interface

Because of this, execution is deterministic. In HAL this effectively becomes a sequential call chain within the same realtime cycle.

Also, there is only one writer for the final 6040 controlword, produced by the controlword composer, which avoids the typical “multiple writers” problem that often causes ambiguous state transitions.

In HAL, race conditions are caused by multiple threads or multiple writers, not by the number of components.

Regarding gantry and coupling: I agree that final squaring and coordinated homing logic belongs in the motion/kinematics layer. If a coupler is introduced on the HAL side it would only serve a limited purpose — handling safe decouple/recouple situations when the drive performs internal motion (for example CiA402 homing) to avoid command/feedback jumps. It would not replace motion’s gantry or homing logic.

Interestingly, the recent HOME_ABSOLUTE_ENCODER fix in motion (PR #3774) also highlights a similar concern about maintaining internal consistency when offsets are applied during homing. In that patch the motion code re-normalizes pos_cmd, pos_fb, free_tp.curr_pos, and motor_offset to avoid accumulated offsets during re-homing. Conceptually this looks similar to a recoupling step inside the motion layer to keep controller and physical states aligned.

The goal here is not to duplicate motion functionality, but simply to keep CiA402 semantics independent from the transport layer (LCEC/EtherCAT) while maintaining a deterministic controlword path.

I can make a (7I92) bitfile but are you sure 7I92 bitfiles will work on that card?

OK das ist forum fehller, aber es gibt kein info was hat shief geganen.
Had die thema im ein anderen sub forum geschickt, versuch noh mal bitte.

forum.linuxcnc.org/additive-manufacturin...drive-gesucht#343661

ClarkSavage wrote:

Funny, the homing was INVERTED in Stepconf, but now is not in Pnnconf. Also the latest Pnnconf instructions do not match the Pnnconf I see on my machine. ????? documentation must be lagging I guess, realize everybody is busy and this is a free program......

 

Parallel port requires pulling inputs down to trigger,
Mesa can have inputs set for pull down or pull up, in hal
Mesa can use all pins as inputs or as outputs, in any combination, and they are much, much faster than parallel port, so it is impossible to have all possible combinations in a wizard.

Ok, changed all in_out to in and the axes and everything stays enabled - I can jog them. They go in the right direction.

Since I have changed all the limit settings will revisit that later. Many thanks. Your in the run.

Now I need to play with getting my homing back to normal and get the axes unlimited and start uncommenting other stuff too.

Funny, the homing was INVERTED in Stepconf, but now is not in Pnnconf. Also the latest Pnnconf instructions do not match the Pnnconf I see on my machine. ????? documentation must be lagging I guess, realize everybody is busy and this is a free program......

Thanks again.

Thanks again, will report back once I can settle down and get this part straightened out. 

 

kcjengr.github.io/probe_basic/update_notes_stable.html

follow the docs for sa new installation and machine configuration setup. the instructions are there to setup as is needed.

I start with a pyvcp panel...
Drive fwd 1 station button calls in section in my comp
Set tool 1 button calls m61q1

Then i add buttons tool1 tool2.... tool6 to call m6 t1....t6

If i hit drive fwd 1 station it rotates exact 1 station fwd. goes then backward and reduce pwm to get it locked against the pawl.

Now i check temperature ever 15 minutes of driver and dc motor.

Next step is calculating the distance from actual tool position to taeget tool position.. like from tool 1 to tool 6... or from tool 6 to tool 3... handling the rollover would be interesting... we will see in the next days.

If this done is the last step the movement... with the calculated distance on position to go forward i can multiplie with the forwardtime from position to position.. the locking part is not so sensitive.

So we will see... toolchanger without feedback... very oldschool... complete openloop.

Ok those work properly (step generator action is correct)
I suspect the problem is with your jogging setup.

( Which I cannot check unless you include the missing custom.hal
and custom_postgui.hal files )

Well the first thing is that all home switches are inverted...

The need to be false (dim red) when not activated and Yellow when activated.

(whoever chose those colors should be punished somehow...)