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M4MazakUser wrote:

Yup your instructions are great, went from bookworm to trixie no problems,

-it's /etc/apt/sources list
And the grub command is something else as well, do grub- then tab, it's one of them.

Great feedback, yes I fixed the sources.list path.
And the grub-customizer command.

I was reading on Phoronix today that Trixie has higher performance in some things than Bookworm. I feel a bit cheated really. I am using Cinamon desktop and nothing has changed!

Big OOPsie,   I just assumed that the Clearpath servos had absolute encoders.    THEY DON'T.
    I thought i wanted absolute encoders....  at least for the end product.   
i have a friend with a Full size WEB mill and he runs steppers,   I don't think he is in love with them,  but he has not changed them out either.

     RodW i think you are correct for a first machine,   unfortunately I only have one CNC mill.   and i dont' really want to buy a learner set of servos or steppers and then have to replace them to get a good accurate part.    That is why i was wanting to start off with ONE used small clearpath servo, and not just buy a whole set without trying one first.
     
For easy and simple the clear path  SD do seem ok.   And i don't know if i agree with you on the overpriced part,   i just looked at some steppers and by the time i get a stepper and a drive they are pretty close to the clearpath price,   It did seem like the steppers may be more powerfull for the size, is that true??
    Also I am not buying NEW NEW clearpath.   There are lots of new open box or slightly used Clearpaths for sale ,   which also makes me  wonder why so many are for sale???  

i read the thread    " some advice and opinion of the Clearpath servos",    now i need to look into that further.

Too much reading tonight  and not much closer to a servo decision 

Yup your instructions are great, went from bookworm to trixie no problems,

-it's /etc/apt/sources list
And the grub command is something else as well, do grub- then tab, it's one of them.

It's M73 tower with a Intel G3 something or other, went straight for an I5, world difference, CPU and cooler was AUD $20 off FB marketplace.
I use it as a dev machine now.

Tested it with software step generation on the lathe, worked fine, but that was just a test.

A new ethercat-conf.xml is needed, there are many new PDOs.
Start with output from lcec_configgen and add what's needed from the current config file.
Use the complexentry for the digital IOs. I'll see if I can come around and update the ethercat-conf.xml
in the repo in a day or two.

The 24V digital Inputs are single-ended. Meaning that a switch gets +24V (or -24V) from somewhere else
and the circuit is closed through the IO board. The Inputs work with both polarities.
It is somewhat misleading to have +24V as input in J12. It isn't used. Only -24V (which can be +24 or -24V as needed)

Clearpath are overpriced but have a step/dir interface, their torque curves indicate the are more like a stepper than a servo. If you must use them, use the SD only. Linuxcnc controls that.
For you first machine with a BOB, don't go overboard. Use open loop steppers, or closed loop steppers if you want to wasre a bit of money.
Generally something like Clearpath would be powered by a 60-70 volt toroid power supply rectified to DC but unregulated.

The DM542A can handle 50 volts so a good match to a 48 volt power supply. Quite a bit cheaper than the Lam DS1044.
I would not get the TB6600