replacement knobs

[dominion1]

is there a place that sells colored knobs for polybrute/matrixbrute?

[modalmixture]

Love My Switches has some aluminum/colored plastic knobs for other Arturia synths, maybe they have something that will work?

[DrJustice]

The knobs need to be of the 6mm D-shaft variety with 90° orientation of the key (flat part). Seen from above with the knob in the middle position, or the pointer pointing away from you, the shaft looks like and is oriented like a "D". It's not the most common type out there, so be careful to get the correct ones.

[guyaguy]

The knobs need to be of the 6mm D-shaft variety with 90° orientation of the key (flat part). Seen from above with the knob in the middle position, or the pointer pointing away from you, the shaft looks like and is oriented like a "D". It's not the most common type out there, so be careful to get the correct ones.

That shop Love My Switches that modalmixture recommended offers sleeve converters which convert metric to Imperial as well as D-shaft to round. Not sure if there’s a European counterpart. 

[DrJustice]

Love My Switches only have a round 6.0mm knob to 6.35mm adapter sleeve. Knobs for 6mm 90° D-shaft are very hard to find unfortunately.

Our fellow forumite turbo_kev got a set for his MatrixBrute from these guys:
https://store.djtechtools.com/products/chroma-caps-knobs-and-faders?gclid=EAIaIQobChMItNGZ9OCU3wIVgchkCh2WoAN5EAkYDCABEgKGAfD_BwE
You can see them on the synth here:
https://forum.arturia.com/index.php?topic=94587.msg155127#msg155127

I've found some on e-Bay and Aliexpress and a couple of other places. Some of them may actually be 270° orientation (90°when looking into an upside down knob...), so beware.

[guyaguy]

Love My Switches only have a round 6.0mm knob to 6.35mm adapter sleeve. Knobs for 6mm 90° D-shaft are very hard to find unfortunately.

Our fellow forumite turbo_kev got a set for his MatrixBrute from these guys:
https://store.djtechtools.com/products/chroma-caps-knobs-and-faders?gclid=EAIaIQobChMItNGZ9OCU3wIVgchkCh2WoAN5EAkYDCABEgKGAfD_BwE
You can see them on the synth here:
https://forum.arturia.com/index.php?topic=94587.msg155127#msg155127

I've found some on e-Bay and Aliexpress and a couple of other places. Some of them may actually be 270° orientation (90°when looking into an upside down knob...), so beware.

It reportedly works for at least some D shafts.

https://lovemyswitches.com/news/replace-knobs-on-the-arturia-microbrute-and-other-gear-with-dshaft-knobs/

Not as ideal as actual D shaft knobs but they seem to get the job done.