He has good eyes! Got it cleaned up and profiled. It is 5 though thicker in one area about 8 inches long
Hopefully I can work that out on the tiller board.
Spent yesterday evening figuring out how I did that and then kicking myself for lack of quality control in such a critical stage.
Turns out my lam sander adjustment nob will "self rotate' due to vibration during the long lam sands. Going to make a nylon nut to use as a locking device...
Great eye Kirk! I will post pics on the tiller board hopefully this weekend.
I don’t know what system you use for grinding lams, or what type of drum sander or edge sander you are using. But getting nice consistency in your lams is a must.
I use a drum sander , and all my sleds are precision machined aluminum. Believe it or not you can still screw up lams if you mix and match different runs. I typically mill 20-40 .001 and .0015 at the same time. This covers my RC and hybrid designs. my Flatliner takes a pair of .002 lams and I mill a bunch of those at the same time too.
The trick to precise thicknesses is getting your lams close, and flipping them every pass, and running them in the same location on the conveyor belt. The last pass through I flip the lam again without changing the depth.
Good fresh 36-40 grit paper helps a lot, and cleaning the paper now and then with a giant eraser…. What ever they call those.
Loaded up sand paper, a booger on your conveyor belt, or even sawdust under your sled can make a .05 difference in a short section of your lam.
Once you start coming in within a 1/4” tiller difference every time, you got it down….. from what I see in that photo, you could have as much as 1.5” difference top and bottom. Kirk