Just looking now at other examples on the forum and I can't find anyone
using position control

The step gen seems to be always set to velocity or mode 1

Like here

https://www.forum.linuxcnc.org/media/kunena/attachments/26696/toolchange_index_2022-03-19.hal

On Wed, 2 Oct 2024, 16:45 andrew beck, <andrewbeck0...@gmail.com> wrote:

> also here is the relevant part of my config
>
> this is as simple as i can make it
>
> 1 sensor for index
>
> and just a step direction servo drive for movement
> if anyone else has this working i would much appreciate it to see how
> cheers
>
> # ---------- CAROUSEL TOOL CHANGER  ----------
> net index carousel.0.sense-0
> net index hm2_7i92.0.7i77.0.0.input-12
>
>
> # Drive Setup
> setp        hm2_7i92.0.stepgen.00.dirsetup           5000
> setp        hm2_7i92.0.stepgen.00.dirhold            5000
> setp        hm2_7i92.0.stepgen.00.steplen            5000
> setp        hm2_7i92.0.stepgen.00.stepspace          5000
> setp        hm2_7i92.0.stepgen.00.position-scale     100
> setp        hm2_7i92.0.stepgen.00.step_type          0
> setp        hm2_7i92.0.stepgen.00.control-type       0
> setp        hm2_7i92.0.stepgen.00.enable             1
> setp        hm2_7i92.0.stepgen.00.maxaccel           300
> setp        hm2_7i92.0.stepgen.00.maxvel             600
>
> setp        carousel.0.fwd-dc    0
> setp        carousel.0.hold-dc   0
> setp        carousel.0.rev-dc     0
> setp        carousel.0.rev-pulse  0
> setp        carousel.0.align-dc    0
> setp        carousel.0.decel-time   0
> setp carousel.0.scale 100
>
>
> net carousel_position carousel.0.counts-target
> hm2_7i92.0.stepgen.00.position-cmd
>
>
>
>
> On Wed, Oct 2, 2024 at 3:00 PM andrew beck <andrewbeck0...@gmail.com>
> wrote:
>
>> Hey Andy
>>
>> I got it compiled and rotating
>>
>> And homing
>>
>> But I'm getting a error message
>>
>> "The toolchanger has failed the final alignment check"
>>
>> Then when I turn the carousel enable off and back on the motor rotates a
>> few pockets.  And it keeps doing this.
>>
>> Do you have any ideas
>>
>> I'm loading the carousel component with
>> Loadrt carousel pockets=16 dir=2 encoding=counts num-sense=1
>>
>> And I have one sensor for home
>>
>> And feeding carousel.0.counts-target to hm2_7i92.0.stepgen.00.position-cmd
>>
>> And I have a step gen set up.
>>
>> Also when I trigger the carousel.0.jog-fwd it doesn't change.
>>
>> Cheers Andrew
>>
>> On Mon, 30 Sept 2024, 23:00 andy pugh, <bodge...@gmail.com> wrote:
>>
>>> On Mon, 30 Sept 2024 at 10:21, andrew beck <andrewbeck0...@gmail.com>
>>> wrote:
>>>
>>> > but the motor just runs away and out of control
>>>
>>> Is the stepgen set up in velocity mode or position mode?
>>>
>>> It should be set up in position mode, with carousel.0.counts-target as
>>> the position. And probably with a counts-scale of 1, if you have
>>> position feedback.
>>>
>>> The component has grown so complicated that it probably needs a
>>> special docs section, in addition to the manpage.
>>> (Ironically I have never had a toolchanger, so my only experience is
>>> second-hand other than the three toochangers I have worked on at
>>> LinuxCNC fests)
>>>
>>> --
>>> atp
>>> "A motorcycle is a bicycle with a pandemonium attachment and is
>>> designed for the especial use of mechanical geniuses, daredevils and
>>> lunatics."
>>> — George Fitch, Atlanta Constitution Newspaper, 1912
>>>
>>>
>>> _______________________________________________
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>

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