Incra Flip Shop Stop - User Manual

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Introduction

As you look at your new INCRA Flip Shop Stop and fence for the first time you

will no doubt see a most interesting detail. The front face of the fence uses a

tongue and groove arrangement to accept a mating feature on the flip arms.

When the flip arm is down with the two opposing tongue and grooves engaged,

it becomes impossible for the sharp corner of a mitered board end to wedge

between the fence and flip arm. Combined with the already famous incremental

positioning capabilities of the Incra saw-toothed racks, you'll soon be duplicating

cut off lengths with machine shop precision.

Micro Adjusting

Micro adjusting your stop position can be accomplished in a variety of ways. Use the

supplied hex tool to loosen the two socket head screws located on the top of the stop

body and then turn the micro adjust socket head screw to fine tune the stop position.

Fig 1. When unscrewing the micro adjust screw, apply pressure to the stop body to

keep it against the screw end. After adjustment, always tighten the two socket head

screws on top of the stop body.

When using the stop rods in the flip arms, another way to micro adjust is to simply

shift the position of the rod. A dual rod setup can provide the most controlled means

of adjusting. Place a short rod in one flip arm and a long rod in the other, then

slide the rods to contact each other between the two flip arms before tightening the

thumbscrews. With this setup in place, one rod will be in a "backup" position to the

actual "stop" rod. Fig. 2.

To micro adjust the stop rod forward, loosen the thumbscrew that secures it and

place a shim or spacer, equal in thickness to the adjustment required, between the

backup and the stop rod. Slide the stop rod against the shim and tighten the

thumbscrew. Detail 2.

To micro adjust the stop rod backward, first loosen the backup rod and place the

shim or spacer between the backup and stop rods. Slide the backup rod against

the shim and tighten the thumbscrew. Remove the shim, loosen the stop rod

thumbscrew, slide the stop rod to contact the backup rod and tighten in place.

Zeroing to the Blade

To zero the stop and scale to the blade, begin by locating the fence a safe distance

from the blade and tightening the socket head screws that secure the fence. Clamp the

stop to the fence about 10" away from the blade. Crosscut a piece of scrap stock with

this setup. Measure the length of the cut piece. Fig 3. If the cut piece measurement

is some multiple of

⁄32" (i.e.: 10

⁄32, 10

⁄16, 10

⁄32, 10

⁄8 etc.), slide the scale on the

fence to read the length of the piece directly under one end of

the stop. Detail 3.

If the cut piece measurement is not a multiple of

⁄32 (example:

⁄64), micro adjust the stop forward

⁄64", and recut the board.

When the test cut measurement equals some multiple of

⁄32",

slide the scale on the fence to read the length of the piece

directly under one end of the stop. Note: When zeroing the

scale for mitering setups, the test cuts must be made with the

fence locked to the selected angle.

About your Fence Scales

All INCRA products use overlapping 16" long Lexan scales. The overlap allows fine-

tuning the scale from one end to the other to agree with the high degree of accuracy

provided by the Incra saw toothed positioning racks. These scales are printed initially

in 16" lengths (0-16", 16-32", 32-48" etc.). As they are slid into the scale slot on the

fence, the ends are overlapped and aligned using the optical window located at the

end of the second scale. Fig 4. The friction fit will keep the scales in place. If you

wish, you can use a small piece of double faced tape at the overlap to ensure that

the scales move together when changing your zeroed setups for mitering.

Flip Shop Stop Instructions

Fig. 1

Fig. 2

Detail 2

Fig. 3

Detail 3

Fig. 4

Loosen (2)

socket head

screws

Turn this socket

head screw to

micro adjust

Short “stop” rod

Place shim between

stop & backup rods

Measure test

cut length

Clamp stop

to fence

Long “backup” rod

Slide scale to read board’s

length under either end of stop

Align scales using

optical window

Tongue and

groove

Need help?

Do you have a question about the Incra Flip Shop Stop and is the answer not in the manual?

Summary

Making a Zero Clearance Wooden Subfence

Making a Wooden Auxiliary Stop Surface

The INCRA Flip Shop Stop is a precision woodworking accessory designed to enhance the accuracy and versatility of cutting operations, particularly when used with a fence system. Its core function is to provide highly accurate and repeatable stop positions for cutting off lengths of material, leveraging a unique tongue and groove fence design and INCRA's renowned saw-toothed positioning racks.

Function Description

The device consists of a main stop body, two flip arms, and various stop rods. The fence itself features a tongue and groove arrangement that mates with corresponding features on the flip arms. When a flip arm is down and engaged, it prevents material from wedging between the fence and the arm, ensuring clean and accurate cuts. The system is designed to achieve machine shop precision for cutoff lengths.

Important Technical Specifications

Scales: The device utilizes overlapping 16" long Lexan scales, printed in 16" increments (e.g., 0-16", 16-32", 32-48"). These scales are designed for fine-tuning and alignment using an optical window.
Stop Rods: Various stop rod lengths are provided, including shorter 1 1/2" rods and longer rods, allowing for different stop configurations and independent or simultaneous arm movement.
Subfence Compatibility: The stop body is designed to accommodate a 3/4" wooden subfence, which can be used for tear-out control and workpiece support. The maximum height for a wooden subfence, when incremental stopping is required, is 2 1/2".
Subfence Fasteners: The subfence uses 1/4-20 x 3/4" socket head cap screws, 1/4" flat washers, and 1/4-20 rectangular nuts. The mounting holes for the subfence require a 5/16" through-hole with a 3/4" diameter x 3/8" deep counterbore.

Usage Features

Micro Adjusting:
- Socket Head Screw: Fine-tuning of the stop position can be achieved by loosening two socket head screws on top of the stop body and then turning a micro adjust socket head screw. Pressure should be applied to the stop body to keep it against the screw end during adjustment.
- Stop Rod Shifting (Dual Rod Setup): For highly controlled adjustments, a dual rod setup is recommended. A short rod is placed in one flip arm and a long rod in the other, with the rods contacting each other.
  - Forward Adjustment: Loosen the thumbscrew securing the stop rod, place a shim or spacer between the backup and stop rods, slide the stop rod against the shim, and retighten.
  - Backward Adjustment: Loosen the backup rod, place a shim between the backup and stop rods, slide the backup rod against the shim, tighten the thumbscrew, remove the shim, loosen the stop rod thumbscrew, slide the stop rod to contact the backup rod, and tighten.
Zeroing to the Blade:
- Clamp the stop to the fence about 10" from the blade.
- Crosscut a piece of scrap stock and measure its length.
- If the measurement is a multiple of 1/32" (e.g., 10 1/32"), slide the fence scale to read that length directly under one end of the stop.
- If the measurement is not a multiple of 1/32" (e.g., 10 1/64"), micro adjust the stop forward 1/64", recut, and then slide the scale.
- Note: For mitering setups, test cuts must be made with the fence locked at the selected angle.
Flip Arms and Stop Rods Configurations:
- Joined Arms (Long Rod): A longer stop rod can be used to join both flip arms, causing them to pivot simultaneously. The rod can be positioned as the actual stop surface or slightly behind the arm, making the aluminum arm the stop surface.
- Independent Arms (Short Rods): Two shorter 1 1/2" rods can be placed in each stop arm, allowing them to be used independently. This enables calibration for work to the left and right of the blade, or to provide two different cutoff lengths from one position by pivoting one arm up.
- Variable Spacing: By combining long and short rods, up to 7 3/4" between two stop positions can be created.
Expanded Clamping Mode (for Wooden Subfence):
- To attach a 3/4" wooden subfence, loosen the two socket head screws on top of the stop body and slide the upper portion off.
- Slide the upper portion back on, capturing the rectangular nuts in the second T-slot located on the lower portion of the stop body. This allows the subfence to be mounted for tear-out control and workpiece support.
Making a Zero Clearance Wooden Subfence:
- Medium Density Fiberboard (MDF) is recommended.
- Drill and counterbore dimensions are provided for mounting.
- Tip: To prevent the saw blade from pulling the workpiece, an adhesive-backed sandpaper strip can be added to the front face of the wooden subfence.
Making a Wooden Auxiliary Stop Surface:
- A wooden auxiliary stop can be attached to one of the flip arms using a wood screw through a slotted hole midway up the arm.
- The second flip arm can be equipped with a longer stop rod for outboard support of the auxiliary stop.

Maintenance Features

Scale Alignment: The overlapping Lexan scales are friction-fit and can be aligned using the optical window. For added security, a small piece of double-faced tape can be used at the overlap to ensure the scales move together when changing zeroed setups for mitering.
Warranty: Taylor Design Group, Inc. offers a one-year warranty against defects in material or workmanship, with repair or replacement at their option. The warranty does not cover improper use, alteration, or abuse.
Lifetime Warranty on Positioning Racks: INCRA positioning racks are covered by a lifetime warranty. If a rack becomes damaged for any reason, Taylor Design Group will replace it free of charge for as long as the tool is owned.

Incra Flip Shop Stop Specifications

General

Brand	Incra
Model	Flip Shop Stop
Category	Industrial Equipment
Language	English