TrimTheKing wrote:Rob/Doc - I’m going to go against your view here because I use a LV BU Jack and BU Block and I assure you that I use a camber on the blades in both with great success...
This has always perplexed me. Take a BU blade and put a small camber on it and it will be curved if you hold it perpendicular to your face; then tip it backwards by 78deg (the blade is now at 12deg to the horizontal) and the curve will disappear so the blade will be effectively 'flat' and this is what the wood will see.
You can demonstrate this more effectively by doing the same exercise with a circular dinner plate which obviously has a huge semi-circular camber (ie; the rim). Hold it in front of your face and you'll see a circle; tip it back to almost flat (12deg) and the circle diminishes to to a very slight curve, so if you wanted to have an effective camber (as you might on a BD blade) on a BU blade you'd need to have a curve which is nearly semi-circular! - Rob