Rio Grande FOREDOM Allset User manual

Easy-Cut Prong Guide Instructions
Congratulations on your purchase of the Allset® Easy-Cut Prong Guide.With this
remarkable prong-cutting aid, you can create level, uniform and precise cuts easily
and repeatedly, time after time. Its unique design ensures a level and uniform-
height cut on square, round or any other shape of prong. It also includes a unique,
adjustable stop guide in the back that precisely controls the depth of each cut.
800.545.6566 www.riogrande.com
Safety Notes
1. Always use eye protection when cutting prongs and channels with your AllSet® Easy-Cut Prong Guide or when using
any power tool.
2. Some prong- cutting operations may require close placement of the hands to sharp, cutting edges. To avoid injury,
please pay careful attention to hand placement, avoid distractions and do not operate prong-cutting equipment
without your full attention.
3. For safety and effectiveness with any power tool, maintain a clean work surface and a clean general work area.
With the Easy-Cut Prong Guide you can:
•cut perfectly level stone seats regardless of the
setting shape—it is perfect for 45°, 70° and 90°,
so you can even cut perfect seats in the prongs of
large pendants, basket settings, solitaire mountings
and more.
•gain precise, accurate control over the depth of cut
so that finished prongs are stronger.
•adjust and position the setting precisely so the
bur won’t grab or roll itself around the prongs,
preventing the scratching that can result.
•reduce stone breakage because you don’t have to
force prongs while setting.
And, like every Allset kit and component, the Easy-
Cut Prong Guide is made in the USA of highly durable
materials and and is designed to stand up to multiple
demands and configurations.
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Starting Out
To use the Easy-Cut Prong Guide with the Foredom® 30®
handpiece you will need the Allset® handpiece attachment
with L-bracket that is included with Allset Master Kit or the
Prong Guide, Pavé or Channel Kits (see riogrande.com or your
Rio Grande Tools & Equipment catalog).The illustration at right
shows the proper assembly.
To use the Easy-Cut Prong Guide with a Foredom® No. 10®,
No. 18® or No. 52® handpiece, you will need the Allset® Quick-
Change Adapter Kit made for the model handpiece you have.
The illustration below right shows the proper assembly.
The illustration below shows the Easy-Cut Prong Guide as it is
properly set up and briefly describes its operation and range
of guide adjustments.
800.545.6566 www.riogrande.com
Easy-Cut Prong Guide Instructions
Assembled view showing guide adjustments.
Exploded view of the Easy-Cut Prong
Guide as it is mounted on the Foredom®
No. 10®, No. 18® or No. 52® handpiece
using the Quick-Change Adapter Kit.
Please Note: The No. 18 handpiece
requires that the finger nut (included) be
installed for proper operation.
Exploded view of the Easy-Cut Prong Guide
as it is mounted on the L-bracket for use
with the Foredom® No. 30® handpiece.
L-bracket
Top view
Side view
As the bur rotates, it creates a counter-
clockwise force on the prong. The
prong guide allows movement only
along the guide’s edge.
The prong guide centers the prong for
the bearing cut; align the guide so that
the center of the prong is at the center
of the bur.
range of
adjustment
prong guide
angle adjustment
stop guide
depth control
adjustment
Quick-
Change
adapter kit
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800.545.6566 www.riogrande.com
Easy-Cut Prong Guide Instructions
Using the Easy-Cut Prong Guide:
1. Make sure all prongs are at the same angle. File the tops of
the prongs so they are the same height and level with one
another. Choose the guide size that will allow all of the
prongs in your setting to sit on the table between the bur
and the edge of the table.
2. Choose a low-speed bur that will make a cut appropriate
for the stone (usually a 90°hart bur). Fine-cut, low-speed
burs will work the best without chatter and skip.
3. Make the cuts by moving the prongs across the bur,
perpendicular to the inward direction of the cut. Cut about
a third of the way into the prong, depending on how thick
the prongs are.
Many large colored stones have extra-thick girdles or some
other irregularity. You will have to judge if cuts need to be
wider or at different levels. Be sure to mark the stone and the
setting for position as you try the fit and make adjustments.
Well-cut stones benefit from settings made with AllSet®
guides because there is little or no unusual torque or pressure
from uneven cuts.
Check to be sure that the piece sits level on the
table without wobbling.
Make sure each
prong is at the
same angle
and is the same
length. File
the top of the
prongs flat.
Adjust the bur’s height for the proper stone set. Position the piece on the table using the prong guide and
depth control guide. Rotate the bur slowly at first while
making the cut into the prong.
set the depth
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800.545.6566 www.riogrande.com
Easy-Cut Prong Guide Instructions
The end of the fence guide
should be positioned
slightly underneath the bur.
This will prevent the prong
from lipping between the
bur and the guide.
The stop guide (depth
control) is not necessary for
all settings. Use it whenever
the depth of the prong cut
is critical to the setting.
Prong setting
with prong
tips on the
table.
When adjusting the guide for prong
width, it is very important that the
bur is centered with the prong for
consistent and straight cuts.
Allen bolt
adjustment
Rotational force
Centered prong
Adjustment for prong height
Adjustment for
prong width
Allen bolt adjust-
ment
Rotational force Rotational force
Rotational force
Allen bolt
adjustment
Adjustment for smaller
settings/prongs
Adjustment for larger
settings/prongs
The Easy-Cut Prong Guide offers a wide range of adjustability.
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800.545.6566 www.riogrande.com
Easy-Cut Prong Guide Instructions
Side view of ring setting showing center-cut
prongs with evenly cut heights.
Close-up views of cut prongs
(Easy-Cut Prong Guide vs. freehand cutting)
cut depth cut depth
same depth
correctly
centered cut
correctly
centered cut
incorrect,
off-center cut
incorrect,
off-center cut
The result—
a perfectly
set stone!
Top view of ring setting showing center-cut prongs with evenly cut
heights.
The Easy Cut Prong Guide produces consistent settings with perfectly even height and depth cuts.
©2011 Rio Grande, Inc. All rights reserved.
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