Grr-ripper wooden clones

[GPA61]

I read that some people were their own grr-ripper push blocks so I decided to give it a try and this is what my efforts yielded.

My wife's first concern was that I didn't make the body of it thick enough. She said "if something happens your blade would go through that 3/4 ash in nothing flat".

I don't feel that is a concern but I could add some thickness. What do you guys think?

Here are some pictures.

[ragswl4]

Very nice. I have one of the grippers and those look nearly exactly the same. Good job. Mind if I steal the design??

[crokett]

I think you do some very nice work. I also think that the saw blade would go through the plastic body of a real grr-ripper more easily than your wooden ones. I would not worry about it.

[pelligrini]

Those are pretty nice. Is that sandpaper on the bottom?

I've got a pair of the plastic ones and I use them all the time. The only feature I saw that you didn't incorporate was the movable handles. I will reposition mine at times, especially when I don't use the foot portion.

[jussi]

Awesome job. As far as protection, how about gluing a piece of aluminum on the bottom?

[bigstick509]

[leehljp]

You put some work in on those. Well done!

[Knottscott]

Very nicely done!

[cgallery]

Nicely done.

As far as going through the 3/4" ash, don't expose too much saw blade and you don't have to worry about it.

[lrogers]

Nicely done Claudio. I like yours better than the originals.

[footprintsinconc]

that is simply awesome! maybe you can market the wooden version of them?

do you have dimensions that you could share?

[GPA61]

This isn't my design. I copied a picture so be my guest to do the same.

The bottom of the legs is the rubber from a thin mouse pad. This stuff grabs like crazy.

If you look at the bottom view, one of them has two extra holes. That allows me to move the handle from side to side. However, I can't move it very much as I didn't allow enough room for my hand to clear the fense. (Perhaps a taller handle would make it better.)

Overall dim. is 7" long and 4" wide. Two legs are 3/4" wide and the narrow one is 1/4" wide.
The support leg is about 1 3/8" wide by 3 1/2 " tall. The handle is 6" long.

You might want to increase the length of the entire unit to accommodate a larger handle, depending on the size of your hand. My hands are pretty slim. Also, I'd suggest increasing the height of the whole thing so your hand doesn't run into the fense when the handle is positioned over the thin leg. (ripping very thin strips, 1/4" or less ) If I do another one, that's what I'll do.

The rest is pretty simple. T track from Rockler, knobs, bolts, etc.

Thank you for all your nice comments.

[nicer20]

do you still use them ?

Hi Claudio,

Very nice design. I recently found out about GRR-ripper and then saw yours. I am starting into some serious wood working and have bought the BT3100 about a year ago that I am planning to put to some serious use now.

I am planning to build two of these since I am on a tight budget and don't want to shell out money for the original ones.

But at the same time I want to find out from you if they have been working as you planned and would you advise building them.

Also, if you have thought of and/or added any mods to them or if you have some key advice it will be highly valuable to hear from you.

Once again, thanks in advance for your help and your work here.

NG

[woodturner]

I am planning to build two of these since I am on a tight budget and don't want to shell out money for the original ones.

Does anyone know if the GRR-ripper is patented? It is illegal to make copy of a patented product without the patent-holder's permission.

Just a caution and "heads up".

From their website, it appears to be trademarked at least. I will have to research that issue to determine if trademarked products can be legally copied for personal use.

[LCHIEN]

Does anyone know if the GRR-ripper is patented? It is illegal to make copy of a patented product without the patent-holder's permission.

Just a caution and "heads up".

From their website, it appears to be trademarked at least. I will have to research that issue to determine if trademarked products can be legally copied for personal use.

trademark protection applies to the name or specific appearance characteristics. Not to a design.