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Looking For Some Advice

4562 Views 34 Replies 11 Participants Last post by  MEBCWD
I'm making a base for a small box and I'm having problems with the miter joints. I cut them on my table saw using an Incra V27 miter set to the 22.5 deg notch. I normally don't have trouble cutting 90 deg or 45 deg miters because I have tools to help me set the angles precisely. However, I don't have anything for setting up a 22.5 deg angle. I used a stop block when making the cuts and I verified afterwards that all like pieces are the same length.

For reference purposes, the cherry frame is roughly 4.5" x 8" and the frame pieces themselves are 1" wide. The stock is 0.5" thick.

My question is how would you recommend that these cuts be made? Would you use a table saw or a miter saw?
Do you sometimes get the same imprecise results and then fine tune the angles with a plane or sanding block? Thanks in advance for your help.

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Another idea that I use quite often is to make a small miter box that fits the width of your material and use a Japanese pullsaw to make the cuts, you will be surprised at how accurate you can cut miters.
Hebr
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Wow, a lot of good advice. It'll take a bit to get through it all. I performed a thorough setup of the table saw before I put it into service but it's been awhile so I'll begin by going through that process again.

Stick, I also ordered the Veritas® Poly-Gauge from Lee Valley Tools. That should help me set up my 22.5 degree angles more precisely. Thanks for the link. I'll also be checking out my miter gauge as you suggested.

Harry, I would really like to use a chamfer bit but I'm still a bit concerned using it on the small 1" corner pieces. Even trying to hold those small irregular shaped pieces in a small-parts holder seems unsafe.

Herb, you said, "Remember that a Machinist makes things that fit every time, and wood worker MAKES things fit." That's so true. I had the opportunity to work in the Astronomy Department's machine shop while attending college and I was always so impressed with how precise I could make things even as a rank amateur. Exactness is more challenging with wood.
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more points...
always work w/ the same side up and same edge to the miter gauge.. avoid flipping the piece over...
a shooting board may be your answer over a miter trimmer...

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ding...
I can see this now...
you cut the leg of the frame at 22.5...
roll the piece over and cut again.......................................
so..........
any amount you are off in any plane or direction on the st cut is doubled on the 2nd cut...
it all adds up very quickly...
keep doing your cuts this way and you are just compounding problems...
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Your're right Stick, that's how I made the cuts. When my Veritas gauge arrives, I'll make a shooting board. That appears to be a solution that provides a lot of control over the cutting process.
if the two edges are not parallel or the piece isn't perfectly straight getting where you want to be is very difficult...
consider a second miter gauge... one for each side of the blade and you won't be rolling/flipping the piece over but the two edges in parallel and straight is an absolute must...
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yur shooting board...
do not use MDF... over time thinks and hardware holding power will fail...
use a LA plane w/ it because of the end grain...
make sure there is no sawdust build up against the fence...
trim one end of every piece...
set a stop block to control length to maintain lengths...
use your clamp to hold the piece... more fool proof..
I like this style...
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yur shooting board...
do not use MDF... over time thinks and hardware holding power will fail...
use a LA plane w/ it because of the end grain...
make sure there is no sawdust build up against the fence...
trim one end of every piece...
set a stop block to control length to maintain lengths...
use your clamp to hold the piece... more fool proof..
I like this style...
Thanks again Stick. I didn't know what an LA plane was and my first google attempt tried put me on a plane to Los Angeles. Then I tried LA Wood Plane and found out it stands for low angle. I'm almost afraid to ask you for a reasonably priced recommendation because you seem to deal in only the highest quality stuff. But I'll give it a try. Can you recommend a reasonably priced LA plane such as the least expensive one that you would still recommend?
Thanks again Stick. I didn't know what an LA plane was and my first google attempt tried put me on a plane to Los Angeles. Then I tried LA Wood Plane and found out it stands for low angle. I'm almost afraid to ask you for a reasonably priced recommendation because you seem to deal in only the highest quality stuff. But I'll give it a try. Can you recommend a reasonably priced LA plane such as the least expensive one that you would still recommend?

not so.. best value and what will be in service decades from now 8is what I prefer......
I never think w/ my wallet but I don't loose sight of it either....
but I do like my Veritas...
there's lots of choices... nothing wrong w/ a Stanley, Record or a Woodriver V3 (version #3)... V1 and 2 leave a lot to be desired...
stay away from Asian and Mexican manufacture.. Leave the sweethearts by Stanley alone too...
up grade the iron...
Blades - Lee Valley Tools
a jack or smoother will work nicely for a shooting board.. I think a block plane is a tad short in the nose for this job...

make sure the sole is flat...
make sure the sole is square to the sides..
make sure the adjustment work solidly w/o slop..
put the plane up against something solid and push hard... if the plane has points that dig into yur hand.. pass on it...

and before I forget...
get yourself a set of 30/60/45 drafting squares... small and large...


.

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Wood River V3. I have several and they are very good with only minor tuning on the three I have so far. I like Veritas, of course or Lie Nielson, but they are above my pay grade, (I do have a veritas router plane that is sweet!) The iron (blade) must be flattened carefully

I am something of a precision nut, but so far I have not yet successfully produced a shooting board that met my standard. Paul Sellers shows how to do it with hand tools on YouTube (It pops right up on search). But you're also going to have to figure out how to work with odd angles 22.5 for example, on short pieces.

I do like the idea of having two miter gauges, one for each side of the blade, but you're going to have to be very careful on setting angles relative to the blade. But that will set you back more than the miter trimmer.

So I'm back to the router and a jig to carry the short pieces so you can keep your hands and fingers. Precision is the dilemma on miter joints, expecially with6 or 8 joints, not just four.

Which helps explain why custom picture frames are hudreds of dollars.

My 25 cents. - D.R. Tom
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Wow, there's a lot of good information in this post!
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Wow, there's a lot of good information in this post!
Sie haben richtig DerSchuhmacher! There's a cadre of active members on this forum that are very generous in sharing their knowledge and it's much appreciated by those such as me who are trying to learn.
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Wood River V3.

My 25 cents. - D.R. Tom
New name for Desert Rat Tom - which is too unbecoming for him.

How bout we start using .......... Dr Tom
New name for Desert Rat Tom - which is too unbecoming for him.

How bout we start using .......... Dr Tom
DesertRat actually describes my usual appearance around home and workshop, although I clean up pretty well for work and my senior group, and if I'm taking my sweetie out. And it helps keep me humble, which is very much necessary, according to my sweetie.

I really love this Forum. Good guys and gals, lots of skill and generous sharing. And you all seem willing to put up with me.
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DesertRat actually describes my usual appearance around home and workshop.
That's the way I see it, you need to be comfortable in the shop and relaxing around the house. I usually put on nice clothes to go anywhere except the lumber yard , home center or somewhere like that and sometimes even for them.
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