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David's [aka Patron] double curve..my version of the jig? #1: Where to start? The Table!

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Blog entry by degoose posted 06-10-2009 10:07 AM 2494 reads 9 times favorited 19 comments Add to Favorites Watch
no previous part Part 1 of David's [aka Patron] double curve..my version of the jig? series Part 2: OK the JIG! »

I have spent the last few days in the workshop working out how to make this jig.. and have it durable and repeatable and totally accurate and easy to use.
Actually this jig can be used for two different projects … well probably more that two but thats all I have used it for so far.
To start, I had to build a table to go over the bandsaw table for the jig to pivot on. [double pivot actually][two pivots two pics right!! ]

The table was made from 5/8” [15mm] plywood, with silver ash used to hold the ply table to the metal table from underneath with various cleats. I wrapped the front and sides with some Purple Heart because I can,.
.,HI Kent.

The rear cleat system is removable to enable the table to slide on and the the rear cleat is then re.attached [Incra Build It Knobs come in handy for so many things,]to hold the ply table down.

There is also a front cleat to hold the front of the table to the bandsaw table. The table is removable from the bandsaw for many reasons ,. mainly so I can use the other jigs I have for it.
Bearings were inserted to make the pivot points. These points were centred 9.5” from the blade on a line at the leading edge of the blade…. [ This was done to enable me to use the template from the the spiral jig.}

This is fairly straight forward.. lol… not really… I didn’t realize that the pivot points must be perpendicular to the blade [ I actually knew this but didn’t do it anyway] . [OK all of you Jocks who want to see my mistakes .. this was one very big one…If you don’t have this right the blade will try to drift sideways and eventually jam or break ] You will notice the plugs in the table where the bearings were originally inserted.
This is all you get this time.. next will be the actual jig..
PS for those who have not yet had the pleasure of meeting my grandson Malakai.,. included is a picture taken at Easter when he spent a few days with us.

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



19 comments so far

View Todd Thomas 's profile

Todd Thomas

4969 posts in 2116 days


#1 posted 06-10-2009 11:51 AM

wow great looking easter bunny….nice work on the jig as well

-- Todd, Oak Ridge, TN, Hello my name is Todd and I'm a Toolholic, I bought my last tool 10 days, no 4 days, oh heck I bought a tool on the way here! †

View Scott Bryan's profile

Scott Bryan

27251 posts in 2489 days


#2 posted 06-10-2009 12:16 PM

Thanks for the post, Larry. This is an interesting series so keep ‘em coming.

That is a wonderful picture too, by the way, of Malakai. This one needs to be framed and on display in your home.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View Splinterman's profile

Splinterman

23058 posts in 2028 days


#3 posted 06-10-2009 12:54 PM

As usual Mate…....nicely done…......and the little man…...Bonza.

View Dan'um Style's profile

Dan'um Style

13018 posts in 2650 days


#4 posted 06-10-2009 01:52 PM

beautiful baby

-- keeping myself entertained ... Humor and fun lubricate the brain

View bowyer's profile

bowyer

340 posts in 2063 days


#5 posted 06-10-2009 02:09 PM

good looking jig. Awsome looking Grandson he looks very happy to be with you

-- If at first you don't succeed...Don't try skydiving

View patron's profile (online now)

patron

13065 posts in 2008 days


#6 posted 06-10-2009 02:21 PM

hello larry ;
sorry about the confusion in my blog , with the pivot centers .
i just used nails and had to move them when i discovered the problem in my first attempt too.
i should have been clearer ,
mine was crudely built , but yours shows the refined crafstman that you are .
i like that you seek out the solutions and overcome them in a profesional way !
congradtulations with your grandson Malakai it must make you feel very good .
i am recently a grandfather too , but my son wont talkwith me as it apears that he was told i was dead many years ago, and he evidently is mad at me that i am not .
but maybe time will heal these wounds ?

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

View lew's profile

lew

10061 posts in 2422 days


#7 posted 06-10-2009 02:33 PM

Obviously, you were an engineer in another life!!

Great blog, looking forward to the next installment.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View Bob #2's profile

Bob #2

3808 posts in 2689 days


#8 posted 06-10-2009 05:00 PM

Is the pivot center lined up with the cutting edge of the blade?
It doesn’t seem so by your pictures and if not, why?
I’m thinking yes but trying to save me a “plug” in my jig. ;-)

Bob

-- A mind, like a home, is furnished by its owner

View patron's profile (online now)

patron

13065 posts in 2008 days


#9 posted 06-10-2009 05:06 PM

yes it is , as stated 90 deg. to cut line .

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

View milehigh's profile

milehigh

54 posts in 2007 days


#10 posted 06-10-2009 05:27 PM

that face brought a smile to mine this morning

paul

View Bob #2's profile

Bob #2

3808 posts in 2689 days


#11 posted 06-10-2009 08:27 PM

Thanks David. Had to be sure.

Bob

-- A mind, like a home, is furnished by its owner

View degoose's profile

degoose

7025 posts in 2022 days


#12 posted 06-10-2009 09:36 PM

Thanks one and all.
David I hope it all works out well for you.
Bob you had it nailed but I like that you are willing to ask questions to ensure you have the correct knowledge. Just the angle of the pics but in the 4th pic the table in not set all the way and the blade is back from the line a fraction, when the table is tight then the blade is nearer the line.,. Give or take a few thou!
Paul he brings a smile to my face everyday.

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

View a1Jim's profile (online now)

a1Jim

112171 posts in 2244 days


#13 posted 06-10-2009 10:13 PM

What’s up Doc. a real cuttie Pie.
cool jig Larry

-- http://artisticwoodstudio.com Custom furniture

View moshel's profile

moshel

864 posts in 2351 days


#14 posted 06-12-2009 10:43 AM

you must write a blog about how you made the cute jig in the last picture :-)

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

View Kent Shepherd's profile

Kent Shepherd

2698 posts in 1953 days


#15 posted 06-12-2009 10:17 PM

Just found this, and yes, I saw your note!

Real jigs use Bubinga.———-Have a great day

By the way—Nice jig

-- She thought I hung the moon--now she just thinks I did it wrong

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