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  Topic Review (Newest First)
07-20-2016 06:37 PM
papasombre Welcome to the forum, Tom.
I wouldn“t say you are a novice woodworker. Nice cabinets.
06-27-2016 01:02 PM
DesertRatTom What a great and informative discussion. Thanks to all.
06-27-2016 12:16 PM
Stick486
Quote:
Originally Posted by DaninVan View Post
And GLUE, Stick, and glue.
covered that already Dan...
try to keep up...
06-27-2016 12:13 PM
DaninVan And GLUE, Stick, and glue.
06-27-2016 11:26 AM
Stick486
Quote:
Originally Posted by perseus7717 View Post
Thank you everyone for all the information on the post!

The wood is Alder. The fastener system is the pocket hole system (Kreg).
The fastener system is indeed a problem here! I used the pocket hole system because I couldn't figure out how to clamp the face frame. Even with 1-2 pocket holes pre-drilled and glue, I could not get the alignment perfect (or at all). My method was to use my figures and hold the rounded pieces into the face frame... Not ideal at all, but I couldn't figure how to hold, clamp, align, glue the pieces, hence the post here :-)

Definitely, I need help with the system that will hold, clamp, align, glue the pieces.
Thanks!
Tom
masking tape and a 23 gauge pinner...
06-27-2016 08:59 AM
perseus7717 Hi Stick,

"why are you doing this in sections....."

The section are purely decoration. See example below.

Thanks!
Tom
06-27-2016 08:43 AM
perseus7717 Thank you everyone for all the information on the post!

The wood is Alder. The fastener system is the pocket hole system (Kreg).
The fastener system is indeed a problem here! I used the pocket hole system because I couldn't figure out how to clamp the face frame. Even with 1-2 pocket holes pre-drilled and glue, I could not get the alignment perfect (or at all). My method was to use my figures and hold the rounded pieces into the face frame... Not ideal at all, but I couldn't figure how to hold, clamp, align, glue the pieces, hence the post here :-)

Definitely, I need help with the system that will hold, clamp, align, glue the pieces.
Thanks!
Tom
06-26-2016 11:05 PM
Cherryville Chuck Tom..
what are your fastening methods???
why are you doing this in sections.....

rip a piece ½-¾'' (or more if you can) ply the width and length of the assembled corner piece...
careful on the fit..
glue the sections to the ply.. use a 23GA pinner to pin the ply to the molding but no larger...
glue the assembly to the face frames and mechanically fasten through the back w/ screws being careful to screw into the ply only..
add blocks to add to thickness for the screws if you can...

the splits are because of the early or spring wood of the pieces...
and it doesn't tolerate mechanical fastening w/o preventive measures...


Tom all of that is true. What is cracking your wood is too much stress being put on it. I fully agree with Stick when he says to bridge the corner with ply and then attach the round piece to the ply. Let the ply handle the stress. It's better suited for the job. One of the other possibilities is that the wood may have started with too much moisture content and has dried since you started. Even if that isn't the cause now, it could be the cause of a later failure. Wood cells build up from the center of a tree in layers. Each layer of cells is longer than the previous one so that the outer layers shrink more when it dries than the inner layers. This will cause cracks and breaks if not allowed to move freely.

If you do like Stick suggests I would only attach the piece at its center but it could be attached very firmly if only there. That would allow movement at either end without causing the piece to crack. I personally would try to either rabbet or mortise the ends of your corner pieces into either side at least 1/8". That way if there is shrinkage there won't be a visible gap at the ends where they meet the sides.
06-26-2016 10:14 PM
Stick486 Tom..
what are your fastening methods???
why are you doing this in sections.....

rip a piece ½-¾'' (or more if you can) ply the width and length of the assembled corner piece...
careful on the fit..
glue the sections to the ply.. use a 23GA pinner to pin the ply to the molding but no larger...
glue the assembly to the face frames and mechanically fasten through the back w/ screws being careful to screw into the ply only..
add blocks to add to thickness for the screws if you can...

the splits are because of the early or spring wood of the pieces...
and it doesn't tolerate mechanical fastening w/o preventive measures...

Early wood or Spring wood

1. Formed during spring season.
2. Formed early in a year.
3. Consists of xylem tissues with wider vessels.
4. Produced more in amount.
5. Less dense.
6. A broad zone of wood.
7. Not as strong as late wood.

Late wood or Autumn wood

1. Formed during winter season.
2. Formed after the early wood.
3. Consists of xylem elements with narrow vessels.
4. Produced less in amount.
5. More dense.
6. A narrow zone of wood.
7. Stronger than early wood due to larger volume of wall materials.
06-26-2016 10:08 PM
DesertRatTom I agree on the glue. Can't quite make out the grain on the rounded pieces, but if you have pocket holes going in with the grain, that could cause splitting. You must pre drill that kind of joint on that grain or risk splitting. Glue will hold those shapes forever, although clamping could be a challenge.
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