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Forum topic by oldnovice posted 01-29-2013 06:35 AM 2214 views 0 times favorited 14 replies Add to Favorites Watch
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6845 posts in 3364 days

01-29-2013 06:35 AM

Topic tags/keywords: jig clamp joining

Has anyone seen or used these?

In this video they look simple and useful

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

14 replies so far

View Fred Hargis's profile

Fred Hargis

4984 posts in 2489 days

#1 posted 01-29-2013 01:03 PM

I just read a review ( American WW’er, I think) last week (favorable), and then a flyer showed up from that company in the mail yesterday. I would agree they look useful, but so simple that a shop built substitute would be fairly easy.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Gerald Thompson's profile

Gerald Thompson

935 posts in 2231 days

#2 posted 01-29-2013 02:39 PM

Too expensive for an item one coulde build.

-- Jerry

View Mark Davisson's profile

Mark Davisson

597 posts in 3313 days

#3 posted 01-29-2013 02:49 PM

Fred and Gerald, how would you make your own?

-- I'm selfless because it feels so good!

View waho6o9's profile (online now)


8189 posts in 2573 days

#4 posted 01-29-2013 02:57 PM

View PurpLev's profile


8535 posts in 3645 days

#5 posted 01-29-2013 03:50 PM

Mark – all you need is a flat bar (scrap) that can be clamped to your workpiece, with it’s end rounded off so that the parallel (or other) clamp can apply pressure on it in the other direction.

... heck, you don’t really have to have the ends rounded off, although it would reduce the chance of things getting pushed around.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View oldnovice's profile


6845 posts in 3364 days

#6 posted 01-29-2013 04:25 PM

Purplev I think the round ends keep the direction of clamping force in the proper direction!

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

View RogerInColorado's profile


321 posts in 1950 days

#7 posted 02-01-2013 03:20 AM

I made mine using just scraps cut to make right triangles. The important thing is to clamp the jigs so that the clamping surface is in about the middle of the miter. In looking at waho6o9’s version, they may offer another level of flexibility because they can be used for gluing other configurations than 45 degree miters. That’s all I had in mind when I built mine. The really nice part beyond being cheap is, you can build them and use them before the purchased ones arrive in the mail. I applied sticky back sandpaper the to the bottoms to prevent slip, the same function provided by the rubber strips in the blokz version. Sandpaper doesn’t get lost in the drawer, though.

View DKV's profile


3940 posts in 2500 days

#8 posted 02-01-2013 03:34 AM

It always amazes me whenever someone comes out with a new doodad someone(s) on LJs has a simple homebrew to do the same thing. I called myself stupid today when someone on renners thread talked about using drill bits as height finders for setting router bits and saw blades. Duh, why didn’t I think of that?

-- This is a Troll Free zone.

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6845 posts in 3364 days

#9 posted 02-01-2013 04:23 AM

IMO, the round portion of this tool/jig HAS to be there in order to redirect the clamping forces in the proper direction, it’s just simple physics.

In a strap clamp it makes no difference but in the applications shown in the video the circular portions transfer of forces in the proper direction. The same thing one does when a dowel is placed between the jaws of a pipe clamp and the surface to be clamped.

The door hinge will work!

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

View Fuzzy's profile


298 posts in 3984 days

#10 posted 02-02-2013 10:51 PM

I don’t have a picture handy, but I did something just like WAHO6O9’s with one small difference. I cut a 1/4” wide notch through the half-round pieces in such a way as to eliminate the clamp and use a simple 1/4”-20 bolt/washers/wingnut to pull the joint together.

-- - dabbling in sarcasm is foolish … if you’re not proficient at it, you end up looking stupid … ... ...

View runswithscissors's profile


2751 posts in 2021 days

#11 posted 02-03-2013 02:40 AM

Where do you get hinges that big?

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View oldnovice's profile


6845 posts in 3364 days

#12 posted 02-03-2013 03:38 AM

When used to redirect clamping forces the circular portion just needs to be big enough for the clamp to grab properly!

This is a link to the patent that shows how the forces are redirected onto the clamped objects by using a device like BLOKKZ

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

View MrRon's profile (online now)


4764 posts in 3240 days

#13 posted 02-06-2013 09:21 PM

This is where companies like Rockler get their ideas from. They find a good idea and make a fancy duplicate and sell it for lots of money. Every time I see a new gadget, I can find a way to reverse engineer it and make it usually from scrap. Cost; zero.

View oldnovice's profile


6845 posts in 3364 days

#14 posted 02-07-2013 01:42 AM

In this case the patent owner get some money too unless he sold the patent to Rockler or some marketing company.

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

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