我这边目前有一个应用，我这边将加工一块长板零件并且在上面做12.7mm的接杆孔，同时需要防止接杆旋转，我看到TRK05产品可以实现防止旋转，但我目前不知道那个凹槽尺寸应该做到多大才能更好的适配该零件，能提供一下该位置的尺寸范围么

Response from Tim at Thorlabs: Thank you for your feedback! We are glad to hear you enjoy and find use for our design!

Excellent idea & implementation. Great value (think of the time you'd spend realigning that optic if you didn't have this tool).

Response from Tim at Thorlabs: Thank you for your feedback. Because of the fit and the fact that the notch in the post holder that determines its fixed rotation is opposite to the spring loaded thumbscrew, the stability of the post should not be affected.

These seem like a good idea but do these adaptors interfere with the stability of the post if they are not perfectly centered? Also, I think your price is just fine, unlike that other poster....Yes, in America we are free to make a profit from innovation...other countries don't allow this...seriously do not let these cheap skates make you feel guilty about what you charge. If they like it and need it then they have to PAY for it. If they think it is too expensive then don't buy it !!! But then you have to live with out this great American innovation so pay up or shut up...Now I think you should double your price and see what they say...

Response from Buki at Thorlabs: Thank you for sharing your thoughts with us regarding the TRK05 anti rotation alignment key. We agree with your assessment and are working on a redesign that would be less expensive. We would like to send you a sample of the prototype when it is ready. As a temporary solution, we would like to send you samples of the current TRK05. Regarding our product philosophy here at Thorlabs, we strive to help our customers be as efficient as possible and that includes providing the best pricing and design for our products. In cases like this where we have not provided the best possible solution, your feedback is invaluable in getting us to rethink the product. Thank you again for your feedback.

This product is quite useful but too expensive. I need 9 units of it but the cost stopped me. I would reduce the cost of it by stamping the profile out of cheap sheet metal. Can you offer this greatly reduced part? What's the product philosophy at Thorlabs - do you strive to provide products that lower customer's cost or to maximize Thorlabs' profit?