wedgeI’ve been putting off buying Forstner bits because I can’t justify the cost, and I’m glad I did.
I just pulled out my old center-point bits for a brace (hadn’t tried them to date), sharpened them up and gave them some tests. They work beautifully, better than imagined. I really didn’t know what to expect, actually.
It cuts clean and fast enough, and with total control over depth of hole, no accidental overshooting.
wedgeNext is to inset the base of the post support in the block, and that will be bolted to only the block. If I need to take the post down for whatever temporary reason, that is where I do it.
I was going to use M8 bolts for that, but the bracket holes are M10, so I might upsize. M10 x 30mm.
The six holes that hold the giant tenon are also M10. This post won’t be going anywhere.
rag. Gustavino Bevilacqua@wedge@woodworking.group
Not a lot of people consider this, but an M10 has almost the double strength of an M8, since it is function of the square of the diameter.
wedge@GustavinoBevilacqua@mastodon.cisti.org
Crazy how 2mm can make such a difference.
rag. Gustavino Bevilacqua@wedge@woodworking.group
It is based on the square root of 2 (~1.4142), so the double of a 10 mm circle is a 14 mm circle, not a 20 mm one.
Plato explained this in the Meno dialogue, in 385 BC… and someone still insist that to study philosophy is useless 😄