Quantcast
  • We invite you to join UKWorkshop.
    Members can turn off viewing Ads!

Spline Joint?

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

sxlalan

Established Member
Joined
21 Apr 2005
Messages
242
Reaction score
0
Location
Skipton, Yorkshire
Hopefully this will be the last question required to finish off the cot I am building :roll: (thanks for everyone’s help/patience!). I have the basic cot finished now and just need to attach a hardwood frame around the top (primarily just for looks). The frame consists of 60mm x 21mm lengths of beech which will run around the entire top of the cot (roughly 1400mm x 700mm). The frame needs to be connected to the cot itself somehow, and in the absence of a biscuit cutter I was contemplating a spline joint. The cot itself is made of poplar and the pieces in question (the rails along the sides of the cot and the top of the head/footboards) are also 60x21mm so the connection will be something like this



I am thinking of using my router to cut a 6mm wide, 10mm deep groove along each piece and inserting a matching piece of ply as the spline. Does this sound reasonable? The beech and the poplar are joined long grain to long grain so do I have to worry about expansion or can I get away with a spline glued along the whole length of each piece? Is 10 mm a reasonable depth and am I OK to put a single long spline in (eg for the whole length of the joint) or am I better off with multiple small splines?

Thanks for your help ... I'll post some photos when it's done!

Alan
 

Philly

Established Member
Joined
24 Nov 2003
Messages
6,874
Reaction score
0
Location
Dorset, England.
Alan
That sounds fine to me-although if it is long grain to long grain you really shouldn't need to re-inforce it. That is the strongest bond when gluing wood together.
Cheers
Philly :D
 

SammyQ

Established Member
Joined
12 Apr 2005
Messages
2,365
Reaction score
111
Location
A wee house on a hill
Wot say you to putting a biscuit cutter in your router, cutting continuous trenches along the edges of your timber and gluing in some of those LLLLOOOOONNNNNNGGGGGG 'biscuit'/splines sold at a number of outlets?
 

sxlalan

Established Member
Joined
21 Apr 2005
Messages
242
Reaction score
0
Location
Skipton, Yorkshire
Thanks guys.

Sammie, I don't have a biscuit cutter but have a 1/4" straight bit so was going to go with that.

Philly, I was just worried that with the beech forming a frame around the top it is likely to get leant on quite a bit. Is the general consensus that glueing alone should suffice?

Cheers

Alan
 

CHJ

Established Member
Joined
31 Dec 2004
Messages
20,131
Reaction score
67
Location
Cotswolds UK
sxlalan":yvv1ftdb said:
...snip..Philly, I was just worried that with the beech forming a frame around the top it is likely to get leant on quite a bit. Is the general consensus that glueing alone should suffice?

..snip..
As long as you can clamp the pieces true to each other without the assistance of the splines, & with even pressure along their length I would suggest that a modern adhesive will as Philly says, be as strong if not stronger than the wood itself.

Have you a couple of short sections of scrap that you can glue up to prove the point to yourself?
 

sxlalan

Established Member
Joined
21 Apr 2005
Messages
242
Reaction score
0
Location
Skipton, Yorkshire
Hi Chas

I should be able to get some scraps together :) Are we talking PVA here or something else?

Cheers

Alan
 
A

Anonymous

Guest
Alan

Dowels might be a nice and easy way to add strength to the joint
 

CHJ

Established Member
Joined
31 Dec 2004
Messages
20,131
Reaction score
67
Location
Cotswolds UK
sxlalan":cuztowbn said:
Hi Chas

..snip..Are we talking PVA here or something else?
..snip..
Fine as far as I am concerned, others will soon let us know if I'm wrong.
I have yet to part a joint made with it whithout tearing darn great splinters off one piece or other of the wood.

See Here for some general info. on adhesives and for a Forum Thread by Chris Waterhead on the subject.
 
Top