I have seen some recent posts about using CNC to make rib parts and noticed this photo of a Pitts rib that looks like the spruce is separating from the ply nose piece. I know there will be a ply cap to hold this all together.
My first experience with CNC rib pieces was the Starduster Too X-wing I had Bill Scheunemann design and CNC cut. He left a round cuff on the ply parts that I promptly squared up with my bandsaw. I just thought it was his tooling. I steamed all my long spruce rib parts and everything layed in place like it should, no separating.
I noticed in the Model 12 instructions it says to round the end of the spruce strip and tap into the cuff to hold in place while the epoxy cures.
Here is a photo of a Model 12 rib.
I don't know who gets credit for the little cuff but it works to hold the spruce strip and I have retired the steamer.
My first experience with CNC rib pieces was the Starduster Too X-wing I had Bill Scheunemann design and CNC cut. He left a round cuff on the ply parts that I promptly squared up with my bandsaw. I just thought it was his tooling. I steamed all my long spruce rib parts and everything layed in place like it should, no separating.
I noticed in the Model 12 instructions it says to round the end of the spruce strip and tap into the cuff to hold in place while the epoxy cures.
Here is a photo of a Model 12 rib.
I don't know who gets credit for the little cuff but it works to hold the spruce strip and I have retired the steamer.
