I am looking to buy a set of Chroma Caps for Pioneer DDJ-RB, but can’t seem to get the knobs off and can’t find any tutorials about how to do it or even if it is possible (Which I presume it is, as you have the RB is on the list of supported controllers and their is photos of them done)
The safest way (without buying a tool) is to grab any old plastic card (such as a debit or shopper’s card) that you no longer use. Cut a 1/4" slot into the card. Slide the card under the knob so that the post slides into the slot. gently pull upwards on the card to loosen the knob and remove.