This is a knob for my 503HTA Hybrid tube amp, from Pi2 design; http://www.pi2design.com/store/p13/503HTA_-_Hybrid_Tube_Amp.html
As wide a knob as reasonably fits on the amp without blocking the adjacent attenuation switch.
A full 20mm of depth gives your fingers lots of easy to grip surface. Large flat corresponds to the knob flat to visually indicate volume level.
UPDATE: I've added a version 2 of the knob. This is the same basic design, with more knurls on the outside, and some of the edges rounded off.
UPDATE2: more of a comment. In the actual photo of the knob, this is with a PI2 and USB WiFi adapter. When the WiFi antenna is in the position shown it interferes with the audio. Rotating the antenna away from the system removed this interference.
| VolumioKnob.stl | 827.7KB | |
| VolumioKnob_ver2.stl | 2.7MB |
