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Thanks for sharing. They’re obviously inspired by that one from a materials point of view, but the technical implementation is far different. There are some maj

by lukevp 6y ago

Thanks for sharing. They’re obviously inspired by that one from a materials point of view, but the technical implementation is far different. There are some major limitations on the YouTube one. First of all, it’s a potentiometer not a rotary encoder, so it has a start and a stop. Second, it is controlling an audio signal directly, not using a PC, so it is not usable in the same way. Audio would need to be routed through the knob. This wouldn’t work for a setup like mine that has balanced outs directly from a sound card to my monitors. I would want a digital control. I’m not sure why the YouTube video recommends a linear pot specifically either, an audio taper pot should be used which is logarithmic. The one in the OP also has a push button which opens up more functionality.

teemofeev 6y ago
To avoid any confusion: The concept of the knob made of concrete is fully inspired by DIY Perks. But we are added a lot of perks, like: - Open-source Arduino-compatible firmware so you can add your functionalities and light effects; - The audio is controlled with the HID library instead of potentiometer; spare time - There are one audio input and two outputs that can be switched with the hardware switch; - Bonus option is you can use it as a scrolling knob; - The audio lines are connected to the microcontroller and you can add light effects relative to the sound; - It is 3d printed and we also added a 3d printable model of the mold for the concrete part; Have a nice day ;)
- aspenmayer 6y ago
  Wow! That’s amazing level of improvements! I’m glad people share their inventions online in this open way. It helps us all get better ideas. I hope you didn’t think I was saying anything negative about your new improved version! It looks fantastic. Thanks for the details and thank you for sharing.

by lukevp 6y ago

teemofeev 6y ago

To avoid any confusion: The concept of the knob made of concrete is fully inspired by DIY Perks. But we are added a lot of perks, like: - Open-source Arduino-compatible firmware so you can add your functionalities and light effects; - The audio is controlled with the HID library instead of potentiometer; spare time - There are one audio input and two outputs that can be switched with the hardware switch; - Bonus option is you can use it as a scrolling knob; - The audio lines are connected to the microcontroller and you can add light effects relative to the sound; - It is 3d printed and we also added a 3d printable model of the mold for the concrete part; Have a nice day ;)

aspenmayer 6y ago
Wow! That’s amazing level of improvements! I’m glad people share their inventions online in this open way. It helps us all get better ideas. I hope you didn’t think I was saying anything negative about your new improved version! It looks fantastic. Thanks for the details and thank you for sharing.