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Raised beds for my garden #2: Compound angle bandsaw jig

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Blog entry by exelectrician posted 01-27-2014 11:57 PM 1782 reads 1 time favorited 9 comments Add to Favorites Watch
« Part 1: New raised beds for the garden Part 2 of Raised beds for my garden series no next part

To cut the compound angles on the cedar 4 by 12’s I made this jig which is more of a rolling trolly.
I used bed frame steel angle, and inline skate wheels. Got from Goodwill store at low cost.
I cut 10 off, 7 degree wedges off the end of a one foot wide ply off-cut using my sliding miter saw. Using screws to secure the wedges while I played around with the general arrangement, at first I thought I would need two trolleys but then I realized that I could use one trolley if I centered the axles exactly on the center of the thickness of the base. Using bed frame angle iron and 10-32 screws and nuts this was an easy task.
Setting up the saw to the workbench is a critical part of this jig, the relative height of the saw table and the squareness of the blade in two axis to the bench top required for me to carefully place wedges under each leg of the bandsaw to achieve this important setting. Also having many parallel lines in the bench top helped me a lot in the alignment of the trolley.
Finishing the square side of the cut with a small circular saw and a few strokes to complete the angle gets the waste pieces out.
I coated all sides with one coat of oil base primer then a coat of exterior latex. Liquid nails adhesive and pocket screws were used in the assembly and then a final top coat of latex was applied before filling the bed with dirt.

Video here http://youtu.be/c6JVECMb3ic

-- Love thy neighbour as thyself



9 comments so far

View Randy_ATX's profile

Randy_ATX

683 posts in 1137 days


#1 posted 01-28-2014 12:12 AM

I was interested in seeing the video however it is currently set to private.

-- Randy -- Austin, TX by way of Northwest (Woodville), OH

View exelectrician's profile

exelectrician

1673 posts in 1122 days


#2 posted 01-28-2014 01:54 AM

Oops …. I forgot to click and Save! – should be okay now.

And thanks for looking.

-- Love thy neighbour as thyself

View nomercadies's profile (online now)

nomercadies

525 posts in 1034 days


#3 posted 01-28-2014 05:48 AM

So nice. That is some mighty fine looking lumber you are using.

-- Chance Four "Not Just a Second Chance"

View exelectrician's profile

exelectrician

1673 posts in 1122 days


#4 posted 01-28-2014 06:19 AM

Yes, most of the cedar was really good $1.80 a BF delivered. I did not notice it on delivery but two of the long timbers were broken in the center, probably from when the tree fell, lucky for me I had ordered an extra short piece to cover any mistakes I might have made, (no mistakes) so I used it to cut in and repair the damage, much extra work though.

-- Love thy neighbour as thyself

View jumbojack's profile

jumbojack

1200 posts in 1319 days


#5 posted 01-28-2014 09:13 PM

That is the most amazing thing Ive see ALL month. Genius! Raised beds? Those will be around for two or three lifetimes.
I made you a buddy, just in case you do something half as cool as this. I would not want to miss it. Thanks

-- Made in America, with American made tools....Shopsmith

View Randy_ATX's profile

Randy_ATX

683 posts in 1137 days


#6 posted 01-30-2014 02:49 AM

I like the dovetail type corners you made on this. Certainly a tease in the middle of winter for us gardeners. Spring can’t come soon enough.

-- Randy -- Austin, TX by way of Northwest (Woodville), OH

View exelectrician's profile

exelectrician

1673 posts in 1122 days


#7 posted 01-30-2014 07:37 AM

Lucky for us in the Great North West the deep freeze that everybody else is getting has slid right by us, January 2014 Yeah we are out there,,,, Git-Er-Done!

-- Love thy neighbour as thyself

View RonPatrick's profile

RonPatrick

1 post in 204 days


#8 posted 04-09-2014 01:12 AM

Would love to add some white cedar raised beds here in Illinois but they seem cost prohibitive as they seem to be NW prevalant? I’m curious, as we are trying to go chemical-free/organic, is the glue and paint, etc really necessary or could it have been pinned together maybe and allowed to weather? I’m not a purist but want to limit or eliminate toxic stuff. Many thanks!

View exelectrician's profile

exelectrician

1673 posts in 1122 days


#9 posted 04-10-2014 07:26 AM

Hi Ron, I painted all the cedar because being older I wanted the raised beds to out live me.
You are quite right in your reasoning about toxic paint etc,. And yes the cedar was over $850.00 for this project, when you retire your priorities change.
No need to pin the joints, what I did was pocket screws at each corner, and at regular intervals down the long sides holding each successive layer together, also a pocket screw hidden by each layer on the corners, when I get back to America I will post a photo of this screw. All screws were 3” long.

-- Love thy neighbour as thyself

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