Sorry chris just making sure I wasn`t talking to my self.
This is one end of a bench that will be fastened to a wall the legs and rails are 4"x3" so not what you would call fine joinery but it must still be marked out exactly.The timber was rough cut so had to be cleaned up I used a No 5 jack plane just the job for this.
If you rub a bit of candle wax on the sole of the plane it makes the work a lot easer.
Almost every piece of wood I work with is marked up face side and face edge,some people call them witness marks,It don't matter what you call them so long as you understand why they are there and what they do.
These two sides are next to each other, they are square and straight to each,that is important because these two sides are reference points and are used in all your marking off.
Without them you are just shooting in the dark and heading for a disaster.
How many times have you marked a square line around a piece of wood and when you come to the last mark they don`t match up,
Frustrating isn't it,if you use the face side and face edge and these two sides are true to each other the line will always match up.
When marking off you only let the shoulder of the square sit on the face side or face edge and on the last mark they will match up.
The last pic in this post shows how I mark the wood the V is the face edge.