Rockler 27712 User manual

Review full manual instructions prior to use for important safety information.
Always check Rockler.com to confirm that you are using the most recent manual version for your product.
Ellipse/Circle Router
Jig Instructions
Effective January 2018

2
This product is designed for specific applications as defined in the instructions and should not be modified and/or
used for any other applications. Before using the Ellipse/Circle Router Jig, read, understand and follow all instructions and safety
information provided. KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE.
GENERAL SAFETY WARNINGS
>Always confirm that you are using the most recent
version of the Instructions and safety warnings for
your product. To find the most recent version, find
the product page on Rockler.com and click on the
link to the Instructions.
>For any tool used in conjunction with this product,
always read, understand and follow the instructions
 andsafetywarningsintheowner’smanualforthattool.
 Ifyoudonothavetheowner’smanual,obtainonefrom
 thetool’smanufacturerbeforeusingitwiththisproduct.
>Before using this product, review and verify that all
tools to be used with it have safety equipment
installed and are in proper working order as
 definedbythetools’owner’smanuals.
>Do not use this product until you have read and
are confident you understand:
• Product Specific Safety Warnings (p. 3);
• Parts List (p. 4);
• Router Mounting Hole Key (p. 5);
• Jig and Workpiece Setup (p. 6);
• Routing an Ellipse (pp. 6-7);
• Routing a Circle (pp. 8).
>Do not use this product in any manner other than
what is described in these instructions. Use only
recommended accessories.
>Remain alert and use good judgment when using
this tool. Do not use this tool if you are in any way
impaired by medications, alcohol, drugs or fatigue.
>Dress appropriately and remove all jewelry, secure
loose clothing and tie up long hair before using
this tool.
>It is the sole responsibility of the purchaser of this
product to ensure that any third party whom you
allow to use this product reads and complies with all the
instructions and safety precautions outlined in this
manual prior to use.
>Maintain these instructions and warnings as long as
you own the product. Keep this booklet in a place where
it will be readily available for reference.
>The user assumes all risk and responsibility for the
proper use of this product and for ensuring product
suitability for intended application.
>Always wear safety glasses in compliance with ANSI
safety standards and hearing protection and follow all
standard shop safety practices, including:
•Keep your work area well lit and clean;
• Unplug all power tools before making any
adjustments or changing accessories;
•Use dust collection tools and dust face masks to
reduce exposure to dust;
•Use accessory safety equipment such as
featherboards, push sticks and push blocks
whenever appropriate;
•Do not use power tools in explosive
environments (e.g., in the presence of
flammable liquids, fumes or dust);
•Keep children and bystanders away from
the tool operating area;
•Maintain proper footing at all times and
do not overreach;
•Do not force the tool.
>These warnings and instructions do not represent the
total of all information available regarding tool safety,
use and technique. Please read the full manual before
using this product and always seek out opportunities to
learn more and improve your skills and knowledge.
Drilling, sawing, sanding or machining
wood products can expose you to wood dust, a substance
known ot the State of California to cause cancer. Avoid
inhaling wood dust or use a dust mask or other safeguards
for personal protection. For more information go to www.
P65Warnings.ca.gov/wood.
Danger indicates a hazardous situation that, if not avoided, will result in death or serious injury.
Warning indicates a hazardous situation that, if not avoided, could result in death or serious injury.
Caution indicates a hazardous situation that, if not avoided, may result in minor or moderate injury
or property damage.
Notice indicates important or helpful information and/or user tips.

3
PRODUCT SPECIFIC SAFETY WARNINGS
>To avoid serious injury, keep hands and fingers away from spinning router bit.
>Your router must be unplugged while attaching the
Ellipse/Circle Jig and while making any adjustments.
>Properly and firmly secure your workpiece to a
solid and stable workbench before attempting
to make a cut.
>Do not attempt to make the full depth of cut in one pass.
Make several passes removing small increments of
material each time.
>Maintain awareness of the router bit at all times
while cutting.
>In order to avoid the risk of serious injury be sure your
 router’spowercorddoesnotbecomeentangled
while cutting.

1
4
Quantity
1 Jig Arm 1
2 Jig Base 1
3 Dovetail Key 2
4 5/16-18 x 1" Knobs 2
5 5/16" Washers 2
6 5/16-18 x 1" T-Bolts 2
PARTS LIST - ELLIPSE/CIRCLE ROUTER JIG
6
6
5
4
4
3
3
2

5
ROUTER MOUNTING HOLE KEY
Porter-Cable 690/890/7529/97529/8529 series, Bosch MRC23 series, 1617-1618 seriesDeWalt 616-618, Hitachi M12VC (fixed
and kit) Makita 1100, Milwaukee 5615-5624, Rigid 2930 combo kit, or routers with 6" base footprint
4"
4"
4"

6
Jig and Workpiece Setup
We recommend using a 1/4" diameter
spiral up-cut bit (82652, sold separately).
1. Attach your plunge router to the Jig Arm (1) with the
screws from your router baseplate and install the desired bit.
2. Set up and firmly secure your workpiece on a solid,
stable surface.
3. If making through cuts, elevate your workpiece to prevent
damage to the surface underneath. Secure the workpiece
to a sacrificial board or use spacers to hold and support the
workpiece, including any sections that will be cut free. Make
sure that all parts of the workpiece will remain stationary
during cuts to avoid potentially dangerous and damaging
shifts, and position any spacers out of the path of the cutter.
Routing an Ellipse
>Properly and firmly secure your workpiece before
attempting to make a cut.
>Your router must be unplugged while attaching the
Ellipse/Circle Jig and while making any adjustments.
WARNING
1. Mark a center point on your workpiece. Lay out the
major (long) and minor (short) axes of your ellipse so that
they’re perpendicular and intersect at the center point. The
major axis can be a maximum of 52" long and a minimum
of 171⁄2". The minor axis can be a maximum of 44" long and a
minimum of 91⁄2". (The maximum difference in length between
the major and minor axes is 8".) Fig. 1.
2. Center the Jig Base on the intersection of the major and minor
axes. Secure the Jig Base (2) to the workpiece with screws of a
length appropriate for your workpiece. Fig. 2.
>Do not attempt to make the full depth of cut in
one pass. Make several passes removing small
increments of material each time.
>Maintain awareness of the router bit at all times
while cutting.
THESE WARNINGS PERTAIN
TO ALL REMAINING STEPS:
>To avoid serious injury, keep
hands and fingers away from
router bit.
Fig. 1
Fig. 2
Fig. 3
2
Major Axis
Minor Axis
Centerpoint
Locking pivot “A”
Dovetail Key “B”
Locking pivot “B”
Dovetail Key “A”

3. Insert a Dovetailed Key (3) into each channel in the Jig
Base (2). Center one (hereafter referred to as “Dovetail
Key A”) along the minor axis.
7
Position router bit
The Locking Pivot closest to the router
must be mounted on “Dovetail Key B” (along the
major axis).
Fig. 5 - Router removed for clarity
Fig. 4 - Router removed for clarity
Locking pivot “A”
Locking pivot “B”
Position
router bit
Locking pivot “A”
Locking pivot “B”
4. Loosen the two Locking Pivots on the Jig Arm (1) and position
them so they mount on the pins in the Dovetailed Keys (3).
Fig. 3.
5. Rotate the Jig Arm (1) so it’s aligned with the major axis, and
adjust it in or out until the bit is positioned as desired to make
the cut. Tighten the Locking Pivot on Dovetail Key A. Fig. 4.
6. Rotate the Jig Arm (1) so it’s aligned with the minor axis, and
adjust it in or out until the bit is positioned as desired to make
the cut. Tighten the Locking Pivot on Dovetail Key B. Fig. 5.
7. With the router off, rotate the Jig Arm (1) through the full
range of cut. You want to ensure that the dovetail keys will
move smoothly, as well as verify the ellipse pattern and proper
placement of any spacers/supports. Then make the cut.
The maximum distance between Locking
Pivots A and B is 4".

Key fastened
with screws
Check Rockler.com for updates. If you have further questions, please
contact our Technical Support Department at 1-800-260-9663
or [e-mail]
8Distributed by Rockler Companies, Inc.
Medina, Mn 55340
27712
Rev 01/18
Fig. 6
1. Mark a center point on your workpiece and lay out the
perpendicular axes.
2. Center the Jig Base (2) on the intersection of the axes and
secure it to the workpiece with screws.
3. Remove one of the Locking Pivots from the Jig Arm (1) and
one of the dovetail keys (3) from the Jig Base (2).
4. Make sure the remaining Dovetail Key (3) is in the channel
that has the two holes near the center. Align the holes in the
Dovetail Key (3) with the holes in the Jig Base (2) and secure
with two #6 wood screws (not included). Fig. 6.
5. Loosen the Locking Pivot on the Jig Arm (1) and position it so
it mounts on the pin in the Dovetailed Key (3).
6. Adjust the Jig Arm (1) in or out until the bit is positioned as
desired to make the cut. Tighten the Locking Pivot.
7. With the router off, , rotate the Jig Arm (1) through the full
range of cut. You want to ensure that the Jig Arm will
move smoothly, as well as verify the circle pattern and proper
placement of any spacers/supports. Then make the cut.
Routing a Circle
>Do not attempt to make the full depth of cut in
one pass. Make several passes removing small
increments of material each time.
THESE WARNINGS PERTAIN
TO ALL REMAINING STEPS:
>To avoid serious injury, keep
hands and fingers away from
spinning router bit.