I own a company in the Seattle, WA. area called JewelTech and I have
two of the Model Master Mills. One is set up with a fourth axis for
doing ring work. They work very well. Keep in mind though, that it
is the software that does the initial work. ArtCAM Pro is the
program that comes with the mill and with in it, there is a Celtic
Knot portion that works very well. The software alone runs $7000. I
would highly recomend them and there products. I have been using the
program and there mills for about 2 1/2 years now and am very happy
with them. Keep in mind, there are people like me out there acting
as Service Bureaus that can make your waxes for you if you don’t want
the initial outlay of around $24,000. I also have a Sanders Model
Maker II for doing full 3-D designs. Celtic knots can also be done
on this, but again, it is the software where the design is created.
Hope this helps. If you need to get a hold of me off line, I can be
reached at 425-888-5144 or 888-275-7193. If no answer leave a
message and I’ll call you back.