Today, I set about making holes in the base (F) and slots in the upper shelf (E) for the rods to rest in. After 2 hours of careful work, the only thing I can say is *#>&@*
Translated, that means "OOPS". It happens to me in every project. I do something that seems right but that has a flaw and/or I mismeasure something. On this project, I managed to do both at the same time...
The base has holes halfway through for the butt end on the rods. Some are fat, some medium, and some thin. So I decided to drill them to fit. I put paper tape on the base (so I could mark on it) and measured out the centerpoints. Then to be absolutely sure the shelf slots would match the base holes, I put the boards edge to edge and used a square to mark the shelf slots.
I drilled the holes in the base. The forstner bits are great for large flat holes. It looked great! Then I drilled half-holes in the upper shelf.
I was very careful about that. I used a sacrificial board underneath (because they were through-holes) to prevent tearout. I drilled a test hole in a piece of scrap board. I got some tearout anyway. Well that's the bottom side, so I decided to live with it.
That's part of the *#>&@*< feeling. Because of the way I transferred the base centerpoints to the shelf, the bottom of the shelf as I drilled it would actually be the top side when assembled!
So, when I put the cleancut side of the shelf "up", this is what I saw.
When I switched it so the holes matched up, the tearout side was "up".
And then I noticed that one of the shelf holes was 1/4" offset!
ARGGGGH! I am NOT a happy camper right now. Luckily, I have another 4" board. I'll remake the shelf tomorrow. This time, I'll know to put the shelf board ON TOP OF the base, not NEXT TO it when I transfer the centerpoints...