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Re: Build Dilemma

Posted: Wed Feb 10, 2016 6:09 pm
by algale
masonsailor2 wrote:The best way to get a perfect edge for that kind of cut is a skil saw believe it or not. Get a new finish cut blade for your skil saw and then make a cut off shoe. It will only take a few minutes to make and the cut will be perfect. I use a piece of 1/4 ply for the base and 1/2" for the guide. But you can pretty much use anything. Since the shoe will have a nice clean edge it's easy to put it right on the line, clamp it and cut it off.
Paul
Thanks. Sounds workable. I take it you build the 1/2 ply as a fence on top of a wide piece of 1/4 base and then make your first cut at 45 to cut the line of the base, which you then line up with the cut line.

Sounds like a kind of homemade Festool. I'll have to hide this response from the wife as I am angling for the Festool! :D

Re: Build Dilemma

Posted: Wed Feb 10, 2016 7:24 pm
by dusty
I would start this project by clarifying why 45° bevels. A good dado or rabbet can provide just as clean an edge.

However, this is not an impossible task on the Shopsmith. First I would have to verify the maximum length off the end of the Shopsmith. I can't go to the shop to verify but I think it is longer than you state.

Nonetheless, that length can be extended by elevating the Shopsmith and letting the end of the work piece hang off in free space. I did something similar though not near as critical as would be furniture by setting up in the pickup truck bed.

Don't rty this with out clamps. That work piece must not be allowed to skew while the end is being cut/sanded.

Re: Build Dilemma

Posted: Wed Feb 10, 2016 7:36 pm
by JPG
You need a half stop on the way tube raising. :rolleyes:

Table tilted 45(ends up horizontal), way tubes tilted 45, work piece horizontal.

Sand to dimension.

Re: Build Dilemma

Posted: Wed Feb 10, 2016 7:46 pm
by algale
JPG wrote:You need a half stop on the way tube raising. :rolleyes:

Table tilted 45(ends up horizontal), way tubes tilted 45, work piece horizontal.

Sand to dimension.
I assume from the roll eyes you are being sarcastic, but I actually thought about doing just that. It seems like it might be slightly hazardous.

Re: Build Dilemma

Posted: Wed Feb 10, 2016 7:50 pm
by reible
I think my approach would be to get the wife to rethink her idea. The skill saw idea will work but the corners, that be 4 of them will have to be the right angles, think of making that large a picture frame.... then add the width of the material, 16" I think you said. That gets to be a pretty tough joint to get right.

Since I think you are going with plywood then I would cut the trim (to cover the end grain) at the 45 degree joint and then cut a joint like a double rabbet with just the last layer of the plywood covering the joint. Still tricky but I think a better way to go for strength and looks.

Ed

Re: Build Dilemma

Posted: Wed Feb 10, 2016 8:03 pm
by algale
reible wrote:I think my approach would be to get the wife to rethink her idea. The skill saw idea will work but the corners, that be 4 of them will have to be the right angles, think of making that large a picture frame.... then add the width of the material, 16" I think you said. That gets to be a pretty tough joint to get right.

Since I think you are going with plywood then I would cut the trim (to cover the end grain) at the 45 degree joint and then cut a joint like a double rabbet with just the last layer of the plywood covering the joint. Still tricky but I think a better way to go for strength and looks.

Ed
Believe me, I agree! I've told her that it will be extremely difficult nigh-on impossible to get good looking miter joints on something this size. It may be I have to prove to her I can't do it before she let's me go with another joint.

Re: Build Dilemma

Posted: Wed Feb 10, 2016 8:09 pm
by JPG
algale wrote:
JPG wrote:You need a half stop on the way tube raising. :rolleyes:

Table tilted 45(ends up horizontal), way tubes tilted 45, work piece horizontal.

Sand to dimension.
I assume from the roll eyes you are being sarcastic, but I actually thought about doing just that. It seems like it might be slightly hazardous.
The reason for the tongue in cheek! ;)

A bit trickey, but single ply butt joint(or a variation) with a miter at the front face only(lotta hand shaping).

I think the strength will be a greater problem.

You have not specified the material but a mitered plywood joint does not make sense.

How thick???

Re: Build Dilemma

Posted: Wed Feb 10, 2016 8:12 pm
by reible
I'll do a sketch of the joint of which I speak a little later tonight and post so you can see what it looks like. I think you will like it and so will she.......... well maybe anyway.

Ed

Re: Build Dilemma

Posted: Wed Feb 10, 2016 8:22 pm
by JPG
Cut a narrow strip off each front edge, miter them and glue back on.

Re: Build Dilemma

Posted: Wed Feb 10, 2016 8:29 pm
by reible
Hope this makes the joint clear enough to understand.
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Ed