https://reddit.com/link/1sxy761/video/a9969pavswxg1/player
So. First of.. I know nothing about mechanical engineering, so excuse my lack of lingo and any emotional and mental pain that this contraption here may cause.
With that out of the way, I decided to make a hobby project, and I'm kinda stuck here since it's got a bit more complex than I anticipated.
The thing is, I want to avoid having to machine parts cause that would cost more than I want for a hobby project.
All I want is for that servo to drive the knife up/down.
But I need a lever which is where things got tricky
The blade will face vertical pressure as well as horizontal on the X axis.
One of the solutions i came up with is to guide the blade with a cube that holds the blade, but has holes on two sides trough which guide rods are inserted, and it just slides on those.
and then attach to the arms below via a pin that allows for rotation..
However, that then introduces parts I cannot buy or make myself, id have to machine them etc.
IS there a much simpler solution here that I'm not seeing?
I could attach the blade directly to the arms, narrow them down, maybe even have just one arm, but then i would have to make guides for the arms themselves cause I'm worried about the torsion pressure.
And also at that point the blade would be at a different angle, not straight like now which I don't want..
EDIT: forgot to mention that my goal is to build all this with 3d printed plastic if possible.
Later i would consider moving to industrial grade plastic for some parts