LumberJocks

Jig for gluing hexagons

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Blog entry by moshel posted 09-18-2010 01:27 PM 2333 reads 14 times favorited 8 comments Add to Favorites Watch

I had several requests to make more of my hexagonal tumbling blocks coaster. they are pretty streightworward to make other than the glue up procedure. the parts slide, crawl, jump and move….

so, i decided to make a jig:

to make it, you will need:
base board (mdf or plywood, 3/4” works best)
piece of mdf, slightly wider than your hexagon
1 bolt

start by gluing the offcuts from cutting the parts of the hexagon so they make the “press” from both sides.
make sure you have no glue in the “corner” (its actually better to file a little dent there)

now, rip the mdf to 1/3 and 2/3
take the 1/3, drill in it a hole that just bout fit the bolt. the bolt should screw in with some effort but not too much, it will break the mdf. countersink one side or the hole, put some wax (tallow?) on the bolt and bolt it in.
put some glue and brad it to the edge of the board (if its not on the edge, its going to be harder to use the spanner). make sure its 90 degrees!

now, take the 2/3, cross cut “dove tail” (blade at 15 degrees) in its middle (leave at lease 2cm on both sides)
hold the 3 parts together and brad the sides to the board (you can also use glue – i did not). put some wax on the middle part to ensure it slides smoothly.

screw the static side, wax the bottom and “press” and you are done!

perfect glue line every time.

-- The woods are lovely, dark and deep, but I have promises to keep...



8 comments so far

View patron's profile

patron

13097 posts in 2026 days


#1 posted 09-18-2010 01:36 PM

well done .

simple !

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View moshel's profile

moshel

864 posts in 2369 days


#2 posted 09-18-2010 01:41 PM

yes. i really liked the way the “dovetail” worked. going to try to make some more experiments with this, maybe a portable vise for working outside….

-- The woods are lovely, dark and deep, but I have promises to keep...

View degoose's profile

degoose

7038 posts in 2040 days


#3 posted 09-18-2010 02:06 PM

Sweet.

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View SPalm's profile

SPalm

4844 posts in 2567 days


#4 posted 09-18-2010 03:10 PM

That’ll do it. I like it.

Steve

-- -- I'm no rocket surgeon

View BritBoxmaker's profile

BritBoxmaker

4400 posts in 1722 days


#5 posted 09-18-2010 03:16 PM

Simply brilliant.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging. http://www.theartofboxes.com

View matai's profile

matai

32 posts in 1501 days


#6 posted 09-18-2010 09:43 PM

Very efficient design. Do you have a jig for gluing multiple hexagons together, or is that less problematic? Do you have to put something under the pieces in your jig to stop squeeze out sticking them to the base?

-- Dave, Christchurch NZ

View moshel's profile

moshel

864 posts in 2369 days


#7 posted 09-18-2010 11:15 PM

many hexagons glued together are “self aligning” to a degree. its not fun when they are small, though.
the problem is that making such jig for a single glue up seems like a waste.

the base is waxed. even with wax, titebond III still manage to stick to a degree!!!!

-- The woods are lovely, dark and deep, but I have promises to keep...

View daltxguy's profile

daltxguy

1373 posts in 2599 days


#8 posted 09-19-2010 01:30 AM

Clever…and of course you can never make just one!

I usually use packing tape under my glueups to prevent gluing to a jig or the bench

-- If you can't joint it, bead it!

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