GRR-Ripper® is a registered trade mark
of Micro Jig, Inc.
Made in USA
● US and International
Patent Pending
GRR-Ripper®
System - A Breakthrough concept out of
the ordinary
The
GRR-Ripper®
precision pusher system also serves as a virtual movable blade guard that the user
holds, rather than a blade guard that is affixed to the back of the
table saw, or one that hovers above it. The GRR-Ripper®
becomes an unyielding barricade between the blade and both of your hands.
You would have to remove a conventional blade guard when attempting the
cut illustrated in the photo above, regardless of the type of pusher used. |
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Our
vision of accident free woodworking
With
safety as the over riding factor, we aver that the
GRR-Ripper®
System is not intended to replace or interfere with the saw table
blade-guard/splitter combination. It is specifically designed for those times when
the conventional combination of a blade-guard and anti-kick back pawls would
interfere with the wood working process especially during narrow ripping. The GRR-Ripper®
System is designed to protect both hands - at all times during use -
regardless of movement. |
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Why
is the GRR-Ripper® System is so important to your safety in your shop?
Try this
simple test yourself
on a table saw as shown in Picture 1 and Picture 2 below.
If your test results are the same as shown in Picture 2, don't take another
chance, get your GRR-Ripper®
before making your next cut.
Click on the
thumbnail below to view larger picture and descriptions. |
1. Set the width of cut to 1", lower the saw blade completely and do not turn on the saw for this test.
2. Using a feather board or other means to hold a scrap 3/4" stock about 3" wide and 9" long against the rip fence at the normal starting position in front of saw blade.
3. Use a regular Push Stick to push the stock at the trailing end behind the KEEPER piece. This is the spot where the Push Stick will push the stock during actual cutting.
Note: When ripping narrow strips of the similar width as illustrated above, removal of the blade cover, anti-kick back pawls combination and any hold-down attached to the rip fence becomes necessary due to the interference of any pusher's feeding process and lack of room for the blade cover between the rip fence and the saw blade. As the push stick pushes the stock forward, the stock gradually "walks away" from the rip fence because there is not any easy way to apply pressure to keep the stock to stay against the fence. In actual cutting operations, when the KEEPER piece shifts into the rear upward spinning saw teeth, the stock will be pushed upward and cause kickback. In this particular example, the "walk-away" occurred before the stock reached the normal splitter position (if you use one) - an indication that appropriate control is required to keep the stock against the fence between the hold-in feather board and the splitter.
Now, use your fingers to feed the same stock from the top surface of the KEEPER portion instead of the trailing end, the position and the friction of your fingers over the stock will keep the stock against the fence throughout the feeding process. This test signifies a regular Push Stick only PUSHES the stock from trailing end (shown in Picture 2) but would not control the stock agsinst the fence. Obviously, you would not want to use your fingers to feed a stock of that size in actual cutting, a GRR-Ripper® should be used as shown in Picture 4.
The GRR-Ripper® provides three directional controls simultaneously - not only on the keeper piece - but on both sides of the stock during the entire ripping operation. This is simply not obtainable from any other tool/accessories, or in combination.
1. RED ARROWS: Balanced Downward Control on both sides.
2. BLUE ARROWS: Parallel and Forward Feeding Control on both sides - eliminates bare hand feeding.
3. WHITE ARROWS: Control the stock and keep it against the rip fence. Notice the White Arrow pressure is no longer required and has no effect (in this setup) on the OFF-CUT portion when the stock is cut into two. That is because the GRR-Ripper® is gliding against the fence (Yellow Arrow) as one whole unit in one single parallel direction; all components including all the Non-Slip Pads are moving in the same parallel direction regardless the stage of the operation. This also illustrates the GRR-Ripper® maintains the stock in its original position during machining.
1. Set the width of cut to 1", lower the saw blade completely and do not turn on the saw for this test.
2. Using a feather board or other means to hold a scrap 3/4" stock about 3" wide and 9" long against the rip fence at the normal starting position in front of saw blade.
3. Use a regular Push Stick to push the stock at the trailing end behind the KEEPER piece. This is the spot where the Push Stick will push the stock during actual cutting.
Note: When ripping narrow strips of the similar width as illustrated above, removal of the blade cover, anti-kick back pawls combination and any hold-down attached to the rip fence becomes necessary due to the interference of any pusher's feeding process and lack of room for the blade cover between the rip fence and the saw blade.
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The GRR-Ripper®
System
The gallery above illustrates
just one of the
many reasons why you shouldn't be without a GRR-Ripper®.
We guarantee you will love what it delivers.
If you
would like to know more details about how kickback happens, please click on this
link to watch the slide show of "How
Burning and Kickback occurred." |
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Revolutionary
The FIRST and ONLY
tool that feeds both sides of your work piece parallel through the saw blade, and
eliminates bare-hand feeding.
Safety
“BULLET PROOF “ your fingers! The
saw blade passes through a tunnel, which safeguards your hands by keeping
them
away from the cutting elements. With the potential ability of holding down both
sides of the work piece throughout the cutting operation, the GRR-Ripper®
makes dangerous kick-back a thing of
the past.
Accuracy
Keeping both sides of your stock parallel to saw
blade through out the cutting operation results in a perfectly straight
cut. The GRR-Ripper®
controls the direction of feed against any straight fence system, and keeps
the work piece in its original position without shifting.
Click the thumbnail to see the accuracy of ripping veneer strips diagonally
to the grain
to easily build this fussy, repeatable diamond-shaped pattern.
Innovative
With its built-in capability, the GRR-Ripper®
System delivers complete control over both sides of your stock - as narrow as a quarter of an
inch - without losing balance.
Restore Confidence
The GRR-Ripper® System turns your hesitation
into determination, and enables you to approach those scary tasks with newfound
confidence.
Versatility
With removable and adjustable components, the
GRR-Ripper® System can be easily set into numerous configurations for many
different cutting tasks that would otherwise be too difficult - or too
time-consuming - to achieve.
Expandability
The GRR-Ripper® System is designed to accept
add-on accessories with endless possibilities. These accessories are limited
only by the end-user’s imagination; many such examples are illustrated
throughout this web site. We are also developing accessories - to be released
soon - that will further enhance the growing adaptability of the GRR-Ripper®
System.
Perform as designed,
expand with
imagination.
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The
Cyberspace to explore ...
This web site extensively covers information and illustrations for the GRR-Ripper® System, complete with many
detailed illustrations. You will find the GRR-Ripper® is an extremely
versatile woodworking tool, yet it is easy to use. The GRR-Ripper®
dramatically simplifies your problematic projects and confidently delivers a quality to your work
that would be otherwise unachievable. Join thousands of satisfied owners,
and you won't want to be without one!
There are many slide shows,
videos and other
animations throughout this web site - each will be opened in a separate
window for your convenience. You may also access all of the slide shows
and videos from All Animations
page. Thank you for meeting us in cyberspace, and enjoy your visit.
See it
in action. 
Animation (DSL/Cable)
See it in
action 
Animation (56K or slower)
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