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proper degree of inner ply for sunray design8/8
We currently are designing a dining table using cherry quarter veneer in a sunburst design. Our tops are made of mdf substrate with3/4" wide solid wood edges. We normally have a 5 ply construction to eliminate any teleghraphic joints from being visible as this is a high sheen finish. I just would like to ask what angle is suitable for the inner ply. We usually just do a 45 degree angle to all our inner ply even with different marquetry designs. Do i have to make a design that would counter all the directions of my face veneer? Ive attached a picture of the top to give anyone willing top help a visual reference.
Use rotary cut Okume, same thickness as your cherry. Preferably single piece sound and better.
If you use a single pc as suggested, you will have about 25% of the cross band grain in the same direction as the face veneer. That will eventually crack or check. You could make a sketch face for the cross band so there would be no same grain direction lamination, but then you may have an issue having seams in the cross bands. I woudl think laminating directly to a good quality MDF would give you the best results.
What part of the world are you in ?
Thanks for everyones suggestions
Joe - i think using 1 whole rotary cut okume makes sense. Laying it out in a certain angle would help eliminate any same grain directions of our face veneer
Charles - we are using mdf from laminex which i think is of great quality. laminating the entire face veneer onto our mdf is i think not a great thing since our substrate has a solid wood edge which in our experience would telegraph once we do not do 5 ply construction. i am currently from a tiny island called Cebu in the Philippines.
For sure, with a lumber edge you must multi ply; in that case, I would do a crossband then a vulcanized paper like Yorkite for a total of 7 plies.