| Project by Jim Jakosh | posted 233 days ago | 1481 views | 7 times favorited | 22 comments | ![]() |
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I have this new brain storm project I want to try that requires these little triangles cut at 72 degrees with a 4 degree angle on two sides. I was going to try to do them in the compound miter saw, but things that small are hard to hold safely in the miter saw. So I threw this little sled together where the parts are clamped solid and my hands are far away from the cut. I first cut the 36 degree angle on half of it and the tilted it 18 degrees off that cut side to get 72 degrees. I made the exact angle gages on my other sled with the sine bar on it and they checked out right on with the Wixie gauge.
The project with the little triangles might be done next week.
I use 5/8” 9 ply plywood for the whole sled. The runners are covered with slippery plastic.
...........Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!!
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22 comments so far
Joe Lyddon
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6477 posts in 2250 days
#1 posted 233 days ago
Looks like you got your 72 triangles!
Is the blade tilted 4*?
I usually put the slippery plastic strips on the bottom of the sled… each side of blade…
... I don’t think my sleds run on the bottom of the runners…
Looking fwd to the rest of your storm… LOL
Nice sled…
-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"
jap
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1073 posts in 251 days
#2 posted 233 days ago
nice jig, now i’m excited for the project.
-- Joel -- http://diversitywoodworks.wordpress.com
rance
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3865 posts in 1358 days
#3 posted 232 days ago
Jim, I’ve found that one’s abilities to make jigs is in alignment with what they can create. And this one is a good one.
If it were me, I might consider cutting the 36 degree on the left side and the 72 (with the 4 degree shim) on the right side. No need to tilt the blade that way. Just a thought. :)
-- Backer boards, stop blocks, build oversized, and never buy a hand plane--
Grumpy
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#4 posted 232 days ago
A much safer option than the mitre saw Jim. Nice jig.
-- Grumpy - "Always look on the bright side of life"- Monty Python
Jim Jakosh
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7651 posts in 1303 days
#5 posted 232 days ago
Hi Joe. Yes the blade is tilted at 4 degrees and both sides of that 72 degree triangle have to be tapered away at 4 degrees.
My saw does not have a groove for steel runner in the table.The center section is cut parallel to the blade on both sides. I have two pieces of plywood with the plastic on them that ride against the sides of that center section. the bottom of the sled is waxed to keep it slippery.
Thanks, Jap.
Hi Rance, I need the 4 degrees on both sides of that 72 degree angle. I think if I were to use a shim I’d be worried first, that I could make one accurate enough at that slim of an angle and then I don’t know how to hold it absolutely parallel to the cut edge. If it were to slip, the angle would not be true for the next step to glue these edges together. I find that it is easier to control if I clamp it flat to the sled or table and make the blade determine the angle- just my preference. It probably could be done with a shim.
I added a shot of how I set the 4 degree angle!
Thanks, Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!!
Bob Collins
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1178 posts in 1881 days
#6 posted 232 days ago
That plywood is getting a hammering Jim, nice sledge and safer than that email I sent you. Cheers Bob.
-- Bob C, Australia. I love sharing as long as it is not my tools
TopamaxSurvivor
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13179 posts in 1873 days
#7 posted 232 days ago
Nice sled. Gluing up a bowl? ;-)
-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
AJswoodshop
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1053 posts in 474 days
#8 posted 232 days ago
Looks like a miter sled! Like the toggle clamp! I don’t like holding the piece down while I cut, toggle clamps are nice to have! Nice job on the sled, I’m sure it will make the pieces easier to cut.
-- If I can do it.....so can you! -AJswoodshop
Roger
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#9 posted 232 days ago
Gr8 idea/s Jim. Nicely accesorized sled
-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net
sedcokid
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2522 posts in 1796 days
#10 posted 232 days ago
Jim, Does your mind ever stop????? You are so creative. Great job, looking forward to seeing what you are going to use these pieces for ;)
Thanks for sharing
-- Chuck Emery, Michigan,
Dusty56
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10727 posts in 1885 days
#11 posted 232 days ago
Great thinking on this sled (and so much safer as well ) : )
-- When did quiet and quite become the same word ? I'm guessing about the same time as your and you're did.
Jim Jakosh
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7651 posts in 1303 days
#12 posted 232 days ago
Thanks for all the nice comments on that sled. Now that I have it done, I have more projects scheduled for it that I used to make on the compound miter saw with a bit of difficulty.
G’day, Bob. Those little pieces int that video at 7.5 degrees were too tine for me to handle. Once I poured out the glue, I’d have them sticking to all sides of my hand LOL!!!
TOPO….......it is not a bowl..you’ll see! I hope it looks good enough to post.
AJ..look at Harbor Freight for cheaper toggle clamps. I found some there for $3. I like them because they are quick and my fingers are no where near that blade!!!!!!!!!!!!!!!
Chuck, that sled idea came to me while sleeping one night. Since I can make any accurate angle on the other sled, now I can use this one for angle cuts an rip a bigger hole in the black. I want to keep the other sled for straight cuts only.
.........................Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!!
AJswoodshop
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1053 posts in 474 days
#13 posted 232 days ago
Your right Jim, I never like my hands close to the blade. For christmas I hope I get a set of push blocks, those are handy to have!
-- If I can do it.....so can you! -AJswoodshop
Jim Jakosh
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7651 posts in 1303 days
#14 posted 232 days ago
Hey AJ, that is one of the first projects you make in the shop:push blocks /push sticks. Don’t buy ‘em when you can make ‘em. Ask for router bits or clamps or sandpaper for Christmas!!!
When I run the table saw, I always have a push stick in each and unless I am cutting a big sheet of something.
I have a PVC pipe with about 30 of them in it so I know right where to get one. The ends are cut thin or torn up pretty bad on some but never my fingers…......Be safe, always!!!!!!.......................Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!!
sswilcox
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11 posts in 1546 days
#15 posted 229 days ago
My guess is a geodesic sphere of some sort. The Death Star, perhaps?
-- -sswilcox, Oregon, ducheznee.com
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