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Just in case, for analog servos from Mesa, depending on availability :
7i97T
or
7i92TM + 7i77
or
7i92TM + 7i85 + 7i83
or
7i96S + 7i85 + 7i83
And if you end up needing more IO, grab a 7i84, it can be easily wired to any of the above combos

You don't need to know where the .ko's live
Halcompile looks after that for you. Just write your component and
sudo halcompile --install mycomp.comp

Sorry to hear that Todd. I'm sure many of us who you have helped over the years will feel the same,

As to the electrical... Mesa 7i77 would be where you start for analogue with quadrature encoders, but I would have in the back of my head replacing the servos with new ones.

Oooh, nice. I always liked these.

For reference, these are basically the same is a MAHO, so all the same rules should apply.

Mine had the revolving nut for the z ram. But they way they did it was to have a normal ball screw nut mounted in a rotary mechanism. So check over what you have there already, it may be reusable with a normal ball screw.

I'm looking for a small servo motor and drive combo and I'm just not having much luck.
I think I sold myself on yaskawa, but the few companies I've reached out to either will get back to me with a quote(it's friday, i get it) or haven't been helpful. I asked one company about driver dimensions and was told to google it...

So I figured I'd see if anybody had any opinions or suggestions.

I've heard the ebay seller industrialpartsshop is a good source but I'm nervous about pairing the correct motors and drives, since they sell them separate, although I haven't asked to see if they'll help with that yet.

I would definitely consider other brands, but yaskawa and delta seem like the best choices to me. I wouldn't mind paying a little more to a company that doesn't mind answering a few questions or is based in the us.

My mesa card sends analog signals so I like the idea of getting analog compatible drives. I know that step/dir and ethercat are possibilities, but I don't know any reasons why I shouldn't stick with analog.
 

You are welcomed, always.

Thanks tommy.
I briefly went through that thread when I first set them up, but am definitely going to revisit it once I get a chance to tune them better. I appreciate you writing that tutorial, I wouldn't know where to start without it.

MaHa wrote:

If you just want to check for any motion, there is 'motion.current-vel' it is OUT FLOAT, i think you can use COMP for float to bit
 

Works like a charm, just what I was looking for and thanks for mentioning comp, that's what I used.

I'll try as soon as I can, but to change the output I didn't touch any wire, I simply removed and replaced the complete terminal, going from output 0 to output 4 which is exactly below.

the cables are all shielded, I haven't made any changes and the router has been working for almost 2 years without this problem.

We have a very rich and beautiful country, but we still have a lot to develop,

Sounds like a marginal output. This could be a factory defect but
could also be caused by accidental contact of a step/dir wire
to a voltage outside the 0 to 5V range.


You can check the step/dir outputs with this script:

 

(You need to "chmod +x stepgens.txt" to make it executable and
possibly change the IP address in the script)

This will slowly toggle all the step/dir outputs on any Mesa ethernet
FPGA card.

They should swing from 0 to 5V

This does require the latest mesasflash:

github.com/LinuxCNC/mesaflash

 

You remember the episode lol, I was the one who bought thcad, and I had them held up in customs. Thank you very much for doing your best to get the plates to me.

Might be interference issues, use shielded cable for signaling.