ACA D Winchester 1 Running an arch in situ

ACA D Winchester2 A opening was made to allow access to the new study

ACA D Winchester3 A opening was made to allow access to the new study

ACA D Winchester4 Using a piece of string and a pencil The arch was spun from the centre point The width of the opening was drawn on the surface of the plasterboard Plasterboards were fixed over the wall area

ACA D Winchester5 Using a pad saw the arch was carefully cut out

ACA D Winchester6 Thin coat beads fitted to the arris Plasterboards have been fixed to the inside of the arch A coat of thistle bonding has been applied to level up the board, and marry into exiting plaster surface

ACA D Winchester7 A coat of finishing plaster has been applied The surfaces have been married together

ACA D Winchester8 Top of the arch ” R=14.5” D = 29 R = Radius D = Diameter Spring line

ACA D Winchester9 D = 29 R=14.5” R = Radius D = Diameter R=14.5” Springing board Pivot point Centre for the fishtail gig stick Dry wall screws used as anchor points

ACA D Winchester10 gig stick with fishtail Template Stock Slipper Angle Mould

ACA D Winchester11 Pivot point Centre for the fishtail gig stick Dry wall screws used as anchor points The slipper and gig stick are flush with the wall

ACA D Winchester12 The mould is built up with three coat of plaster The angle mould is passed over the plaster Make sure that the mould is flush to the wall and the fishtail is located on the pivot point

ACA D Winchester13 The mould is nearly built up

ACA D Winchester14 The semi circular arch is now run The springing board has been removed The mould has been cut of at the spring line

ACA D Winchester15 Running the styles Relocate the angle mould on the finished section When the mould is located fix the running rule with drywall screws Then plumb down the rule and fix

ACA D Winchester16 Alterations have been to the angle mould The gig stick has been removed, and a second slipper has been added This will give the mould stability for running up the rule Twin slipper mould

ACA D Winchester17 The gig stick has been removed, and a second slipper has been added To gauge the distance between the slippers a piece of the running rule has been used

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ACA D Winchester19 Again the mould is built up with three coats of plaster The mould is run up and down the running rule

ACA D Winchester20 When the mould is run The running rule is removed The joint at the spring line is worked with a small tool and joint rule

ACA D Winchester21 The same process is repeated on the other style

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