BOHLE Hardwood Wooden Wedges x 50 Pieces BO 5162002

Product Information

A slight dip or sag in the corner can become the centre of attention, I have found, it can be what the viewer ends up focussing on for some reason. It is good practice to try to get your bars to spread apart a bit before you start tapping in your wedges, rather then just using the wedges themselves to push the bars apart.

Bashing it could split the wood of the wedge, or you could bounce off and hit the back of the canvas, or over-stretching of an oil painting could crack the brittle painted surface. To make it, cut out a notch on the base and install the hinged hold-down cover and adjustment screws.Thanks for your comments and we are currently in discussion with the manufacturers to see if we can change how the Premium canvases are made so that canvas wedges can be used. tighten a canvas that was fine when you started painting but the weight of paint and pressing on it has caused it to loosen a bit. But if you have painted heavily on the sides that sounds even more challenging, as your canvas will now hold a box shape even without the bars and it will be hard to get that to lie flat even for the few mm you need to pull over the edge. Left: The gauge’s angle sets the slope of a wedge, while the stop block determines the wedge’s thickness. Apparently the reason the canvases are stapled in this way is because the stretchers are put together first before the canvas is stretched and it prevents the rectangle from moving and becoming a rhombus before the material is attached.

I find that sometimes one corner is sagging more than the others and it might help to give that one corner a few more taps. It’s used with the mitre gauge and consists of a board with a hinged stop block, a desirable feature for making identical wedges. They can easily be made tauter with corner tightening wedges, which expand the mitred corner of the bars slightly, enlarging the frame by a millimetre or so. Simply screw a square block to one corner of a plywood base and add two straight strips to the opposite outer edges of the base.Mitre clamping jig: When gluing up picture frames or mitred moulding pieces, I reach for some wedges and the mitre clamping jig. If you don’t have slots then it’s also possible that your corners are not interlocked in a way that allows you to expand the corners. If you are priming your canvas, wait until you have primed it as priming will cause the canvas to shrink.

Attach the jig to the mitre gauge where the thickness of the wedge is determined by the distance between the stop block and the cutting line of the blade. You might try first just to re-stretch the the 1/4 of the painting that has the problem, it might be enough.Centre bars also have a little gap and when you purchase a centre bar to stretch your own canvas you should receive some slim wedges to tighten up the centre bar.