Tips or tricks on how to close this mitered edge

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vinny186

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I'm trying to miter an old piece of trim to new but the old trim has deteriorated a bit. It's so large that I don't think saw dust and glue will work. You can't tell from the pic but the trim pieces are contacting one another at the top.
 

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kok328

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Corners rarely come out to be 2-45 degree angles.
You'll have to custom cut the new piece to mate to the old piece.
 

mail.sarakapoor

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use a sharp saw blade to cut perfect miters with a dull blade, one with too few teeth or one that's designed for ripping cutting a 45-degree miter on a 1x3. If the gap is larger, you'll have to recut both boards or the trim profiles won't line up. Here are some trick glue and seamless fit. Apply a thin layer of wood glue to the end grain of each piece before you assemble them.
 

vinny186

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I ended up stuffing the gap with bits of shims, sawdust and glue. Then sanded and painted. I'll try to post some pics.
 

Flyover

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I ended up stuffing the gap with bits of shims, sawdust and glue. Then sanded and painted. I'll try to post some pics.
Pretty much what I'd have recommended.
 
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