Looking at the scant 4mm protrusion on mine makes me a little leery
of expecting too much from it. I could see some sort of locking
device, either a removable pin or clamping a split threaded piece.
Roy
--- In 7x12minilathe@..., "born4something" <ajs@...>
wrote:
--- In 7x12minilathe@..., "roylowenthal"
<roylowenthal@> wrote:
The proponent of that is Mike Tagliari, he did it to allow
turning
long pieces with a handcrank. The only downside is having to
make
sure you don't move the nuts, changing the HS bearing preload.
Roy
And using a hand crank with a long bar poked through the middle
must
be a PITA. But a nice option when necessary. <G> Good argument for
a
big cast valve wheel!
I just checked. My spindle has a full 4mm of thread on the outside
of the locknut. That should be sufficient to attach a threaded
crank
onto which would tighten under load in the forward direction. That
begs the question of how to secure it to allow reverse. Maybe a pin
into a hole or a slot cut in the spindle end? To avoid loosening
the
spindle lock nut during removal a collet spanner could be used.
Thinking through the keyboard here. Is this the makings of a viable
crank idea?
--- In 7x12minilathe@..., "born4something" <ajs@>
wrote: