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GRR-Ripper type Pushblock

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Project by steliart posted 06-30-2013 12:35 PM 6837 views 46 times favorited 24 comments Add to Favorites Watch

GRR-Ripper type Push-block

I wanted to rip some really thing strips and I had no pushblock suitable for such cuts.
The GRR-Ripper is well known and how good it is, so I thought to try build a similar pushblock that could handle the job.

This is my prototype made out of completely scrap pieces that ended-up working nicely and me regretting that I didn’t build this with better materials abd nicer… :( but I can always come back and do it again with some slight changes in its design.

For T-tracks, once again I used aluminum curtain tracks, and a couple of aluminum angles.
For an anti-skid grip, I used that 3mm “Ordex” non-slip mat (this material has such an awesome grip).

Anyway just keep in mind that this was a prototype but that ended-up working just fine, and please don’t judge me harshly on this project.

DIMENSIONS:

Center top: 10×20cm (4”x8”) and wood thickness 2.5cm (1” 1/4) you can adjust the wood thickness according to what t-track you will use, just leave about 4cm (1” 19/16) inside height space.
Also you can build this from thick plexiglass (2 pieces).

Sides: Left side 12mm (1/2”) thickness and right side 6mm (1/4), both will have threaded inserts to accept the stabilizing plate so that you can use the push-block from both sides.

Center Block: 20cmX3cm (8”X1”1/4) height 4cm

Stabilizing Side Plate: 20cmX10cm (8”X3”3/4) Wood thickness 12mm or 18mm (1/2 or 3/4)

I have uploaded a Sketchup file for your convenience: DOWNLOAD HERE

Thanks for visiting and comments
Stelios L.A Stavrinides

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --





24 comments so far

View glen's profile

glen

141 posts in 1308 days


#1 posted 06-30-2013 01:06 PM

judge you harshly? man – i’m thinking that’s pretty slick. nicely done

View doubleDD's profile

doubleDD

2824 posts in 798 days


#2 posted 06-30-2013 01:14 PM

I have the GRR Ripper and this looks great in comparison. Well done.

-- --Dave, Downers Grove, Il. When you run out of ideas, start building your dreams

View CharlesA's profile

CharlesA

1929 posts in 552 days


#3 posted 06-30-2013 01:42 PM

You’ve inspired me. I use mine regularly, but I need a second one but have balked at the price.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View steliart's profile

steliart

1816 posts in 1443 days


#4 posted 06-30-2013 02:01 PM

The cheapest price I found for me to buy/import/shipping the GRR-ripper was $95, not an attractive price for these days

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

View vanzemaljac's profile

vanzemaljac

303 posts in 2256 days


#5 posted 06-30-2013 08:56 PM

Last week I saw an ad for this help and I was wondering how to do the system do it yourself …
Now that I see you’ve made it, I got a good motivation to me to try …
Thanks for the good idea, can you give us some dimensions …

-- Lathe and my imagination will do everything to realize my dreams...Vanzemaljac

View amagineer's profile

amagineer

1392 posts in 1352 days


#6 posted 06-30-2013 10:23 PM

I also have the grr ripper and they are very similiar. Nice design.
-don

-- Flaws are only in the eye of the artisan!

View oldnovice's profile

oldnovice

3872 posts in 2122 days


#7 posted 06-30-2013 10:36 PM

I want to judge just harshly but I cannot find any thing to be harsh about. Why buy when you can make and do it better!

Are you going to make another out of MDF or plastic. I would consider Plexiglas or ABS (if you don’t want any transparency).

-- "I never met a board I didn't like!"

View aussiedave's profile

aussiedave

3014 posts in 579 days


#8 posted 06-30-2013 11:04 PM

Who cares what it looks like…if it works and saves big bucks then it looks great. Just wish you had posted it before I bought two GRR-Rippers and on top of the cost of the items the expense of postage from the US to Australia. Well done…

-- Dave.......Keep calm and make more sawdust....

View iamcliff's profile

iamcliff

504 posts in 907 days


#9 posted 06-30-2013 11:14 PM

Awesome. I’ve got the real thing on my wish list, but don’t want to spend that much. This is great.

-- Chris, http://www.youtube.com/CMRwoodworks , FACEBOOK: http://www.facebook.com/cmrwoodworks1 , Proverbs 16:9

View steliart's profile

steliart

1816 posts in 1443 days


#10 posted 06-30-2013 11:32 PM

Thank you all for your nice comments.

oldnovice you are a mind reader, my thought was to build the new one (when I do) with a 3/8 – 10mm plaxiglass top so you could monitor the ripping procedure, the rest can be whatever wood type you like it to be.

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

View steliart's profile

steliart

1816 posts in 1443 days


#11 posted 06-30-2013 11:33 PM

Thank you all for your nice comments.

oldnovice you are a mind reader, my thought was to build the new one (when I do) with a 3/8 – 10mm plaxiglass top so you could monitor the ripping procedure, the rest can be whatever wood type you like it to be.

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

View BigFoot Products Canada's profile

BigFoot Products Canada

631 posts in 2148 days


#12 posted 07-01-2013 12:29 AM

I’ve offered FREE plans on here for my Grip-N-Rip for the last 4 years…
Check them out!

Grip-N-Rip

View AngieO's profile

AngieO

1208 posts in 902 days


#13 posted 07-01-2013 12:38 AM

Looks great.

View steliart's profile

steliart

1816 posts in 1443 days


#14 posted 07-01-2013 01:29 AM

DavidBethune
thanks for your visit & comment ! ? ! ?

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

View steliart's profile

steliart

1816 posts in 1443 days


#15 posted 07-01-2013 01:35 AM

vanzemaljac
Tomorrow you’ll have the dimension and a sketchup file

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

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