[Richard Crowley]

wrote ...
(Scott Dorsey) wrote:
We always made our own. Draw it out, take it down to your local custom
motorcycle shop and have them cut you some. Explain to them that you want
it out of aluminum so it's easy to make.

I may have to, if nobody else has another source. I don't know why
Markertek doesn't have them, or even Mackie themselves.

As you have tacitly admitted yourself, it depends on exactly which
equipment you have, and even which sliders you are wanting to join.
It is easy enough to mill out a chunk of aluminum with slots of the
apprporiate size and spacing. But only AFTER you know what
the size and spacing are.

I would propose that people with your application aren't using Mackie
(or other MI) mixers, but rather more broadcast-like equipment (which
doesn't need stereo knobs) such as Mr Dorsey is suggesting. That would
explain the lack of commercially-available knobs.