This is such a great sub-topic! On my last couple razors I've been thinking about it but didn't really (still don't fully) understand.. Thank you guys for this! I'm learning a lot.
On my last razor I had a crisis point where I thought all was lost because I did not implement these concepts into my design...
My project was almost complete. Put it together with hexhead machine screws to test it (ended up keeping ALL of the hexheads because it went with steampunk look) and the blade had good tension all the way.. but would pop out when closed so would not be closed all the way. This was for the lack of curve that the lack of a wedge did not produce. I had a spacer made of wood and copper sheet. So I needed to produce a curve... instead of taking the spacer and turning into a wedge... I used another method that my design allowed. Simply adding washers.
I'm sorry I can't add pictures now, but that razor IS shared on another post.
Anyway that experience and more so all of your input is really helping me! Thanks again guys, I'm really glad that I signed up yesterday with SRP!
M