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Forum topic by hairy posted 08-19-2011 07:17 PM 2028 views 0 times favorited 40 replies Add to Favorites Watch
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hairy

2095 posts in 2251 days


08-19-2011 07:17 PM

I have a project I’m working on. Right now I’m making a mockup out of scraps, to work out the details.

I want to end up with a triangle, as marked. The blank is 8” x 8” x 2 and 1/2” thick.
That is also the finished size I need . I want to cut the triangle out of the middle.

I came up with this sled to run through the planer.

The front block sets the angle, the back block keeps it there. A block on each side prevents side to side movement. It is a tight fit.

In this position, the top pencil line is level, an angle gauge laid on the blank indicates 10 degrees.

I was scared to turn on the planer. In my mind, I see a violent conclusion to this. I visualize the blank coming out of the sled, inside the planer.

I’m thinking, the blank needs to be 2” longer. I could run screws through the sideblocks, and trim off an inch from each end later. Since this is scraps, I could run in screws and not worry about it. I just have to make sure they are below the final size.

Ultimately, all sides will be rounded over. I’ll have questions about that, I’m sure.

I want to make several of these.I would prefer to make this from a single piece of heavy hardwood, but I haven’t bought anything yet.

This is what I came up with. How would you do it? Thanks!

-- in the confusion, I mighta grabbed the gold ...


40 replies so far

View ShaneA's profile

ShaneA

5411 posts in 1317 days


#1 posted 08-19-2011 07:21 PM

I am a little worried it is too short, and that the risk vs reward may be a little skewed. If that were to get loose in the planer, it may be all she wrote for the planer or anything behind it. I am seeing projectiles being a possibility. Do you have a bandsaw and maybe a handplane?

View hairy's profile

hairy

2095 posts in 2251 days


#2 posted 08-19-2011 07:31 PM

I have a bandsaw that will resaw 12”
My handplaning is marginal, at best.
I’m real good with sandpaper, lots of practice.

-- in the confusion, I mighta grabbed the gold ...

View AkBob's profile

AkBob

173 posts in 1265 days


#3 posted 08-19-2011 07:44 PM

Ok, don’t laugh at me but, why wouldn’t you be able to accomplish this on a jointer? Now you can laugh :0

View CharlieM1958's profile

CharlieM1958

15712 posts in 2937 days


#4 posted 08-19-2011 07:48 PM

If the blank could be screwed in tight, I’d give it a shot, with small bites of course. Otherwise, no.

-- Charlie M. "Woodworking - patience = firewood"

View hairy's profile

hairy

2095 posts in 2251 days


#5 posted 08-19-2011 07:50 PM

HA HA! My jointer is 6”. I don’t understand how it could be done on a jointer, but I’m the guy that can’t figure out how to cut it.

-- in the confusion, I mighta grabbed the gold ...

View Bertha's profile

Bertha

12951 posts in 1412 days


#6 posted 08-19-2011 07:50 PM

my vote would be the bandsaw

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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hairy

2095 posts in 2251 days


#7 posted 08-19-2011 07:52 PM

I cranked the planer up to max height, lowered it down til it just touched the feed roller. I was going to take very small bites.

-- in the confusion, I mighta grabbed the gold ...

View RONFINCH's profile

RONFINCH

142 posts in 1643 days


#8 posted 08-19-2011 07:53 PM

Bandsaw…........

View hairy's profile

hairy

2095 posts in 2251 days


#9 posted 08-19-2011 08:12 PM

I’m thinking use both. Cut it a little big on the bandsaw, clean it up in the plainer.

-- in the confusion, I mighta grabbed the gold ...

View hairy's profile

hairy

2095 posts in 2251 days


#10 posted 08-19-2011 08:16 PM

That is interesting. I never considered a router. Thanks!

-- in the confusion, I mighta grabbed the gold ...

View dbray45's profile

dbray45

2578 posts in 1495 days


#11 posted 08-19-2011 08:19 PM

If you don’t have a bandsaw, a sharp handsaw would get you real close and use jointer to finish.

Planer will probably kick it out.

-- David in Damascus, MD

View KnickKnack's profile

KnickKnack

992 posts in 2285 days


#12 posted 08-19-2011 08:27 PM

I’ve done something a little similar recently. I did it on the router table – with small nibbles it wasn’t scary at all. This blog shows what I did, but I bet you can do it better!

-- "Do not speak – unless it improves on silence." --- "Following the rules and protecting the regulations is binding oneself without rope."

View Chipy's profile

Chipy

374 posts in 1312 days


#13 posted 08-19-2011 08:58 PM

Make a router jig and use a plunge router!

View Alan S's profile

Alan S

172 posts in 2036 days


#14 posted 08-19-2011 08:58 PM

If you wanted to use the planer, it would seem safer to run it in sideways, so as the piece goes through, the height of the workpiece is not changing. It’s just that at the beginning, you’re only planing a narrow portion of the wood. With each pass, the amount planed would get wider.

Granted, you may get some tearout since the grain is running across the planer, but for a final pass, maybe you could run it with the grain?

Alan

View Viktor's profile

Viktor

448 posts in 2137 days


#15 posted 08-19-2011 09:35 PM

Immediate problem on picture 2: the left uppermost corner of the work piece overhangs outside of the sled. Not good. Make the block that sets the angle to support the edge of the work piece.
Because there is so much material to remove my order of preference would be: bandsaw, handsaw, table saw (with sled, cut from two sides), planner, router (with sled), hand plane.
You could also do a series of non-through cuts of variable depth on a table saw, knock out the waste with a chisel and plane smooth.

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