Wrens have caused us problems because of their nesting habits. They started out building nests in places that could be raided by snakes that ate the eggs. Then they built a nest in our roof guttering - just to be washed out during a rain storm. Then they moved onto the patio and made nests on shelves. They use lots of moss, dead leaves and other things that had to be cleaned up. Finally, this year a nest appeared on my bench top with five eggs. Three chicks lived until fledging. Two fell off the bench during nighttime and died. So I modeled this Wren House with a friction fit entranceway on each end for ease in cleaning out after the chicks leave the nest. I might have to leave one entrace open, because I don’t know if the wrens can fit all their moss and leaves through a 3/4" dia. opening.
I watched a video about a drill bit hanger at the Woodsmith Magazine website. It used an aluminum bar to hang the bits on instead of using a rabbet and tongue as I did in this model. I quickly realized that if I model all the bits I have with the grooves that the model would get too heavy.
This is the corrected Scaffold with diagonals as @tweenulzeven advised. I only attached the scenes that changed. The model was heavy after adding the diagonals and the hardware.
Back in June 2023, Issue #303 - Tim Coleman had a master class article in Fine Woodworking where he showed a three-way mitered leg joint. This model was based upon that. The details of the table are mine.