Thanks Dave! I'll actually have the spokes in place. I'll route just
shy of the spokes and finish over them with a utility knife. The router
will do more of a trim job than anything. No moving or binding of major
pieces will be involved. Here is the building the waterwheel will be
installed on. Bottom photo, left side of "mill."
http://www.bunchobikes.com/pond6.htm Neighbor got a new fence, I got
the redwood to reclaim for the mill, water wheel, bait shack, etc, etc!
Grist mill is 6'x6', 6' tall and , as stated, the water wheel is 4'
That's a myth about ponds! The water may attract mosquitos, but the
fish eat the larvae faster than the bugs can lay eggs. Especially the
specialized Mosquito Fish. Free food for the fishies! So lay all you
want, West Nile! But you can't win here!!
A "routah" with a circle cutting jig is what you want/need.
Home made from 1/4" plywood or store bought made out
A straight cutting bit and a base that can be
cut into(like mdf) and you will be in business.
Mark and Kim Smith wrote:
What material? What purpose? Plywood? Cut with a jigsaw, and then
file. You won't see the flaws driving past at 40. Good wood for fine
furniture? Cut close with a jigsaw, then finish with a router, guided
from the outside edge.
Just use a router with a 1/2 inch straight bit set it up on a 6 inch
wide board with the bit centered at 3 Inch from the edge and side of the
board. Then measure back 24 inch from the inside of the bit and 14inch from
the out side of the bit drill two holes on these marks then use the same
drill bit and drill a hole in the center of a 48 by 48 sheet of ply or MDF
cut your outer circle first and then your inter circle do not cut all the
way through the material leave about 1/8 th of an inch then cut out with a
jig saw and trim down with a flush trim bit.
Always use the radius of a circle to cut one with this method.A good
rule of thumb is always convert any measurement under 12 feet to inches only
and you will avoid a lot of mistakes.
I know a lot of people have replied already, and I haven't read all of
the replys so I apologize if this is a duplicate, but why can't you
use a circle jig with your router. It is really pretty simple.
Basically a compass for the router...Probably what you are doing for
your bandsaw, just substitute a router bit for the bandsaw blade and
turn the jig upside down.
Take something such as a 1x4 (in this case about 30" long), pick out
a router bushing, drill a hole near the end of the 1x4 to fit the OD
of the bushing. Now pick out a straight bit for the router, (a
carbide spiral bit works well) such as a 1/2" diameter. Use a nail
for the center point at the appropriate distance to give the desired
radius. (Make sure to watch which edge of the bit you measure from.
3 passes on your material and you should have a perfect circle.
On 27 Jul 2004 12:30:13 EDT, Mark and Kim Smith
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