seanc Posted February 24 Author Share Posted February 24 22 hours ago, Steve Schulteis said: I used to hold this view as well, but while Phillips solves the problem of keeping the driver aligned with the screw head, it was designed to cam out as a means of limiting torque, marring the head in the process. I now prefer star or hex drive, the latter having an advantage for concertinas in that it's easy to tuck an Allen wrench securely in the corner of a concertina case, and it's more likely that someone else has the correct wrench handy in the event that it gets lost. I've spent some time considering alternative action systems, and even done some prototyping. At this point I'm satisfied that the standard system is pretty hard to beat. Not that it's perfect, but it's got a good balance in its compromises. It's still fun to experiment though, and I'd be curious to see a drawing of your design to see if I'm picturing it correctly. A bit off topic here, so maybe PM me or start a new thread. Is spring lifetime an issue? Torsion springs are capable of surviving millions of cycles if designed correctly. I have had a few springs just die. Maybe it’s age, or use over time. The ones in the ( presumably orig) were brass, or bronze. Many appear to be oxidized. I soirced some stainless springs and many were not right size wise to fit. So, I started making my own with phosphor bronze. what I can say, is that there is a huge difference between the new and old springs. The new springs are substantially stiffer. In a good way. This makes the action noticeably faster. And the notes on the release a quicker to stop. And the end of the note on release is more defined. The height of the new spring buttons are also higher, and in my estimation more uniform with the other new buttons. what this means, to me, is that the new springs are faster, and taller. The old springs by contrast, feel mushy and slow. I am finding the lack of consistency to be an issue. The newer springs lend themselves to allowing for playing faster and more cleanly. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.