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Tuesday
Jun262012

Lap Joints


Lap joint are the easiest to make of all joints and have withstood the test of time as one of the most dependable joints.  Here we will use  the lapjoint to complete an arc that needs  to be larger than the capacity of the machine.  This joint can also be used to make circular moldings without the weakness of the end grain.

 

This is the part before I glued it up.

 

Glueing up the parts I decided to use Gorrilla Glue.  This is a foaming glue that is good for filling the knots for any paint grade projects.  For any projects that you do that are stain grade should be done with wood glue. 

 

 After glueing the part you can use many methods for clamping.  I decided that using an old strap would be both fast and effective.  Because the part is a circle the tighter the clamping force the tighter the joints.  

 

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Reader Comments (1)

'Because the part is a circle the tighter the clamping force the tighter the joints.'
I believe that is misleading as,,,
the greater the accuracy of the joint angles, as in all adding up to a number extremely close to 360 degrees, to make the best perfect circle possilbe, then the tighter the joints with of course some force squeezing the glue into the wood adjoining surfaces, without the need for macho extreme force applied

If skill level won't allow highly accurate angles. then very forible squeezing together is probably the best thing to do, however not so hard as to bust the wood into fragments.

Remember perfect practice leads to perfect play.

September 4, 2015 | Registered CommenterRoger Erickson

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