This is the Pic that came with the plans. If
your interested in getting the plans, there is a link at the bottom of
this page, and on the pages that follow the progress of this project.
Doesn't look that tough does it? Little did I know what
I was in for! Lets start with the 6 piers and the supports that connect
them at the top.
Ahhh, looks a little tougher now! Each of the
cross supports are compound angle cuts of 60 degrees by 4 degrees. The
first creates the hexagon shape and the latter makes the piers flair out
toward the bottom. Yes, this step was a pain in the @$$!!! This was the
second attempt. The direction wanted the piers first attached to the base!
This left me trying to attach the upper supports
between these floppin piers. i got too aggravated and started over. I first
attached one pier to one upper support till I had 6 assemblies. Then I
started to combine them till the assembly was complete. This was also awkward
so maybe the original plan was the way to go.
OK, that looks better! Not a very good pic but
it came out pretty close to perfect. I still need to add a handle to the
top, do that later.
Here's a closeup of the feet, 3/4" walnut glued
and screwed to the base. The base is 3/4" ash plywood with a 3/4 by 3/4"
walnut trim covering the end grain.
Now the fun starts! A 3/4" core box bit
centered at 1/4" depth makes the gutters for the marbles. Again I'm using
walnut but later I'll use some leftover laminated walnut/ash pieces. Feather
board and a push stick are required to push this thru the router table
Here I'm drilling a 3/4" hole for the marble
to drop through. You can see the laminated walnut
& ash in this scan. Always clamp securely when using Forstener Bits.
OK here's a whole mess of gutters and things
all mounted in place. The gizmo releases the balls one at a time
with about a 2 second interval (so I an told! We'll see!) I have it temporarily
mounted to a piece of plywood to aid in
adjusting the mechanism.
Here's a closeup of the release mechanism. Load
the marbles at the top and then manually start the first one down. As it
travels the weight of the marble loads and then releases the next marble.