TBB II Edge and Bias Ringed Limbs

[NYArrow]

Just needing a bit of explanation here. The search on the site brought up nothing and other search engines didn't help either. In TBB II edge and bias ringed staves/limbs are continually brought up but nowhere in the book is a explanation of what that is exactly. Can some of you vets helps me out here?

[okie64]

Edge ringed is the same as quarter sawn lumber and bias ringed is rift sawn. If you look at the butt end of an edge-ringed board the lines will be running vertical. On the end of a bias ringed board the ring lines will be running diagonally.

[George Tsoukalas]

I agree with okie. Plain sawn =; 1/4 sawn ||; bias sawn //. Jawge

[George Tsoukalas]

I agree with okie. Plain sawn =; 1/4 sawn ||; bias sawn //. Jawge

[John Scifres]

 

  Lumber Cutting Methods

[NYArrow]

Thanks. That helps alot. I was always under the impression rift sawn as shown above was not acceptable because the limbs would be showing edge grain and potentially fail.

[NYArrow]

My understanding was as follows:

 

[Pat B]

You also have to consider the grain running down the edge of the board and how the grain runs through the board from back to belly. If you have a sharp runoff at either of these areas you are in for trouble.

[razorback]

John, as always great diagram to help explain a situation. Now for the tricky part which is better and why? All answers are welcomed.

I have always thought that the combination of runoff's are what make a board aceptable, irrespective of the type of cut. Such as, a flat sawn board without any runoffs on the back would be just like a stave and thus desireable. However a 1/4 sawn board is all runoffs on the back but if it doesn't have many on the edge it will also be a good candidate.

[Aznboi3644]

Any type of cut will make a bow...The GRAIN is what is important to look at.

You can have a quartersawn board with perfectly straight lines on the back and belly of the board but have horrible grain runoff going from back to belly.

[George Tsoukalas]

1/4 sawn needs to have straight grain on the edge grain and face. Jawge

[StoneAK]

I have to agree with Jawge he has never steered me wrong.

[okie64]

I buy the widest boards I can find at the lumberyard that are plainsawn, the widest boards will be from the middle of the tree. Then I rip it again and get all three cuts(edge-ringed, flat-ringed, and bias ringed) from the same board. I dont think any one type of cut is better than the other. Its more about how straight the grain is than what cut it is.

[NYArrow]

Okie...good. I just bought a bunch on elm, hickory and maple from a lumber mill near my house. I took a flat sawn board from the center of ea. tree and did as you said. That experience is really what jump started this thread considering I couldn't find a clear answer in tbb vol 2.