For knobs, search the group, i seem to remember seeing a post from somebody who found the originals, which are still in production *maybe* they are made by the uk company cliff, the jack sockets on the sds9 are certainly made by them.
Ewan.
On 29 Jul 2016 5:32 pm, "Scott Gibbons scott@... [Simmons_Drums]" <Simmons_Drums@yahoogroups.com> wrote:3-D printer? (For knobs...)
all my best,
- Scott