Frame designs we have done recently
Posted: Mon 07 Dec, 2009 1:23 pm
Following on from 'frame design' ideas talked about on the forum for a while, here are some things we have done recently:
First one shows how a narrow flimsy frame can be made into a very secure and rigid frame...
Contemporary original print, glass size is 783mm x 1056mm. Print is float mounted on 5mm foamboard, fixed with water activated adhesive paper hinges. The mountboard the foamboard/print is floated on has an aperture cut back to front, 1” in from the edge of the foamboard. The foamboard/print is lightly fixed to the mountboard with a small strip of DS tape. The whole thing is then turned over and the foamboard is fixed to the mountboard with more paper hinges. The cut out from the aperture is then fitted back in and fixed in place with PH7 70 self adhesive tape.
3/4” wide by 1 1/2” deep oak box frame is joined with 30mm long dovetail keys, and fixed with polyurethane glue. 2mm float glass, 13mm spacer, and Art Bak backing.
The dovetail key corners are very strong and more than capable of taking the weight and providing a rigid frame, but a 10mm x 35mm obeche backing frame is also fitted, with the cross bars secured with more dovetail keys. This frame is then screwed to the oak frame with metal plates. This eliminates any chance of the top or sides of the frame flexing, which can often happen when frames are carried carelessly, and from the pull of the hanging fittings, and makes the whole frame very secure. Finally 4mm thick oak veneer plywood corner triangles are glued (not to much glue so they can be removed in future) and screwed to both the oak and obeche frames. All the screws in the oak frame are drilled first to avoid splitting or stressing the wood.
Hanging is with 4 heavy duty hangers from Lion (3 hole which have been cut down to make them 2 hole) screwed into both the oak and obeche frames. The No. 4 brass wire is fixed to the bottom left hanger, goes up through the left side, across to the right side and then down to the bottom right bracket. A piece of No. 5 stainless steel plastic coated wire is also wrapped around the brass wire and fitted between the side hangers. The hanging weight is spread between the four hangers.
First one shows how a narrow flimsy frame can be made into a very secure and rigid frame...
Contemporary original print, glass size is 783mm x 1056mm. Print is float mounted on 5mm foamboard, fixed with water activated adhesive paper hinges. The mountboard the foamboard/print is floated on has an aperture cut back to front, 1” in from the edge of the foamboard. The foamboard/print is lightly fixed to the mountboard with a small strip of DS tape. The whole thing is then turned over and the foamboard is fixed to the mountboard with more paper hinges. The cut out from the aperture is then fitted back in and fixed in place with PH7 70 self adhesive tape.
3/4” wide by 1 1/2” deep oak box frame is joined with 30mm long dovetail keys, and fixed with polyurethane glue. 2mm float glass, 13mm spacer, and Art Bak backing.
The dovetail key corners are very strong and more than capable of taking the weight and providing a rigid frame, but a 10mm x 35mm obeche backing frame is also fitted, with the cross bars secured with more dovetail keys. This frame is then screwed to the oak frame with metal plates. This eliminates any chance of the top or sides of the frame flexing, which can often happen when frames are carried carelessly, and from the pull of the hanging fittings, and makes the whole frame very secure. Finally 4mm thick oak veneer plywood corner triangles are glued (not to much glue so they can be removed in future) and screwed to both the oak and obeche frames. All the screws in the oak frame are drilled first to avoid splitting or stressing the wood.
Hanging is with 4 heavy duty hangers from Lion (3 hole which have been cut down to make them 2 hole) screwed into both the oak and obeche frames. The No. 4 brass wire is fixed to the bottom left hanger, goes up through the left side, across to the right side and then down to the bottom right bracket. A piece of No. 5 stainless steel plastic coated wire is also wrapped around the brass wire and fitted between the side hangers. The hanging weight is spread between the four hangers.