ORIGINAL: GianFrancesco
Never noticed before that the arms were so thick; probably I should fiddle a bit more with Photoshop ( and be able too...)
I still have the option of thinning them down if I decide these are a bit too thick. But I think they look about right. I ended up having to make them about 4mm across (vs. the 3.5mm on the drawings to accommodate the slot. I've started with the arms since they will determine the width of the main mounting bracket. Tomorrow, I'll try making the support block from 10x10 mahogany. Thanks again for the drawings. I could never have gotten to this level of detail on my own!