Ok! So based on her response, this lady is awesome. She's newer to this, trying her best but open to help, which I'm going to attempt to find a solution to the issue I'm talking about (hopefully I can find a source with some of my contacts).
I'll put her reply here. Hope that's ok.
Hey Adam thanks for writing. I really appreciate your input. I’m always looking to improve where I can, but I don’t quite know what you mean. The knobs are exact clones of 1510s I got from small bear so the size of the shaft shouldn’t be different. Some pots have smaller shafts maybe this is what your experiencing? Ive measured down to 6.2mm on various pots sold to me as 6.35mm which is significant but the knobs have always seemed to work without issue.
Could you explain the test you did more because I don’t really follow? If you mean the nut is loose inside it’s hole then I do know about that but I am limited to using what I have been able to find for purchase at reasonable prices. The variety of sizes in hardware of that size is limited and I’m not at the level of volume to be ordering tens of thousands of pieces custom sized hardware. If you have any ideas or know a source of correctly sized square nuts I would be thankful to hear it
Changing the size of the void the nut goes into is an option but it’s pretty difficult and time consuming so I was hoping I wouldn’t need to. I’ll work on that though and see if it helps. If I get it working I’ll let you know.
This whole thing has been a massive learning experience for me and nothing is set in stone. The materials I’m forced to use are slightly softer by nature than the injection molded plastics the big manufacturers use so there are some limitations to my product by default. I use the hardest clear two part resin I could find. It is very stiff but has some small level of elasticity. It’s kind of why I have been more preferential to knurled shafts lately. They bite in to it and stick very well. Unfortunately not very many people use them
At any rate thank you again for taking the time to test and write me back . I look forward to reading your reply
Thanks,
Lauren