DJ Knob - The Ultimate Disco

Bring the party directly to your mixing desk!

This isn't just another standard knob. This design is inspired by the classic mirrorball, bringing playful silhouettes and themed shapes to your DJ setup. It fits perfectly on standard DJ potentiometers, including Hercules controllers, thanks to the standardized D-shaft connection.

This model was created for the Hercules DJ Knob Contest in the "Playful Silhouettes" category.

There are two ways to enjoy this design: the "Full Mirror" method for maximum reflections, and the easier "Stylized Metallic" method.

 Method 1: The Full Mirror Effect (in cover photo)

The goal here is real light interaction. Standard silver filaments just look grey in dark clubs. This method uses real mirror adhesive foil applied to the faceted base to throw real light reflections ("prasátka") everywhere.

Assembly Guide:

What you need:

1. The printed base knob (STL provided).

2. Self-adhesive mirror foil (e.g., d-c-fix mirror effect foil, available at most hobby/DIY stores). Note: Do not use aluminum tape or chrome spray for this effect.

3. Scissors or a sharp hobby knife.

4. Patience.

Steps:

1. Print the knob base. The model is a low-poly sphere, meaning it's made of small flat faces instead of a smooth curve. This makes applying foil easier!

2. Cut your mirror foil into small squares that roughly match the size of the faces on the sphere (approx. 5x5 mm).

3. Peel and stick the squares onto the flat faces of the sphere one by one. Start from the middle and work your way up and down.

 Method 2: The Alternative (Quick & Stylized)

Don't have the patience for cutting tiny squares and gluing them on? No problem!

Because the base model is already faceted (low-poly), you can achieve a great look just by printing it in the right material.

• Print it in Silver SILK PLA (or other shiny metallic filaments).

• The light will catch on the edges and flat faces of the geometry. It won't be a perfect mirror like Method 1, but it creates an awesome, stylized industrial-disco look straight off the printer deck with zero post-processing.

Print Settings

• Material: PLA is sufficient.

• Supports: Not necessary if printed upside down (shaft pointing up), depending on your printer's cooling and bridging capabilities.

• Infill: 15-20%

• Layer height: 0.15mm or 0.2mm.