The Framers Forum

Code 107 157 000.

Have had no problems with this moulding in the past, but have unsuccessfully taken 2 frames apart this morning as there is a woeful gap on the inside?
A few other jobs are perfect. On two different lengths there is a noticeable difference in weight, but it has no bearing on the outcome, as they both mitred badly.
Using a 10mm wedge, single on the inside, 2 stacked on the outside. Any advice appreciated.
Hoops

Hoops,
If you mean that the opening on the inside of the joints is the only problem then you may need to adjust the fence on your chopper for this moulding.

Different profiles and hardness of wood in mouldings and the sharpness of the blades can effect the way the blades pass through the wood and the mitre angle can be slightly different.

One way to combat this is to cut your pieces a couple of millimetres longer than you require and then try the four pieces together on your work bench, dry, to see if the joints are going to be good. If they are open a little on the inside or outside, adjust the left fence angle on your chopper and skim off a miilimetre, then try them together again, dry. Repeat if necessary.

When your blades are freshly sharpened, this difference in angle due to hardness and profile will be much less than when they have been used for some time.

Osgood,
Thanks for the advice, third time I got it acceptable- cannot say absolutely perfect.
Maybe the blades are ready for a change. Everything else is fine, just finding this moulding a pain a present- wasting more than using.
Hoops

Hoops,

Sometimes I find it necessary to give a moulding 'the sack' if it is persistently a problem. There are so many available that we don't need to be too dependent on any one moulding!