What is it?

A pair of high-quality dual concentric rotary knobs made of black anodized aluminum, designed specifically for EC11 and PEC11 encoders. Includes: -Outer knob: Ø 15 mm (external), Ø 6 mm (shaft) -Inner knob: Ø 11 mm (external), Ø 3.5 mm (shaft)

Why did you make it?

It’s surprisingly difficult to find dual concentric knobs that fit the EC11 and PEC11 encoder family properly. Most available options are plastic, poorly finished, or don’t fit securely. We needed high-quality knobs for our own simulator hardware — so we designed and manufactured our own: durable, precise, and compatible with the most common dual encoders on the market.

What makes it special?

Fully compatible with common dual-shaft encoders, including: -Bourns PEC11L (dual) -ALPS EC11 -Standard EC11 clones sold on Aliexpress

Set screw design for strong grip and easy height adjustment Includes 1.5 mm allen key for secure installation Engineered to avoid interference between knobs and encoder push switches Premium black anodized finish