Bezdomni
Member
I'm having a problem when I drill the hole for the bottle stopper mandrel in a SpectraPly blank. The mandrel seems to thread into the hole OK but almost immediately it starts to spin in the hole, making the blank useless. I've tried drilling smaller (and smaller) holes, tapping and not tapping the holes and changing my turning speeds but the same thing keeps happening, usually as soon as I get even the smallest catch: the mandrel spins inside the hole. Does this happen to anyone else? Is there a solution?
I seem to do OK with solid wood, it's just the SpectraPly that gives me problems. I've noticed that the threads on the mandrel are packed tight when I unscrew the blank, so that makes the equivalent of a smooth-sided mandrel, which can't be good. A few minutes ago I dribbled some thick CA onto the sides of a hole, thinking maybe I could harden it enough for the mandrel to grab and hold but I'm pretty skeptical. We'll see in a little while. There's gotta be a simple answer but I'm just not seeing it.
Can anyone help me with this dumb question?
Chuck
I seem to do OK with solid wood, it's just the SpectraPly that gives me problems. I've noticed that the threads on the mandrel are packed tight when I unscrew the blank, so that makes the equivalent of a smooth-sided mandrel, which can't be good. A few minutes ago I dribbled some thick CA onto the sides of a hole, thinking maybe I could harden it enough for the mandrel to grab and hold but I'm pretty skeptical. We'll see in a little while. There's gotta be a simple answer but I'm just not seeing it.
Can anyone help me with this dumb question?
Chuck