New Grapevine Door Knob Added to Wine Cellar Door Handle Collection

Our grapevine door handle collection has, until now, focused on capturing the gnarly quality of vine stems and the distinctive serrated shape of their leaves, with less attention on the grapes themselves.  This focus worked well for creating long door grips and horizontal door levers but was not well suited for a door knob.  

grape vine door handle view.jpg

With this in mind, we began work on a new vine door knob and in our July 12th post  shared with you how Martin Pierce created detailed  perspective drawings as guidelines for his 3 dimensional wood pattern. The pattern was carved in basswood, sealed with primer and used to create a 2 piece hollow core mold. Red wax was poured into the mold and several wax replicas were made. The wax facsimiles were then coated with successive layers of fine ceramic slurry to form an outer wall and the pieces  were baked to form a rigid ceramic shell.  Once baked, the ceramic shells were  heated in a de-waxing  autoclave and steam was  pumped into the shell to remove the wax. The wax was then  filtered, cleaned  and  recycled for future use. The de-waxed shell was subsequently invested with molten bronze and after cooling, the gates that delivered the fluid metal were ground away and the bronze casting was ready to “chased” or refined by hand.

Vine door knob.jpg

Seven weeks later and we have now machined our first castings, added the spindle and  internal springs, fitted our existing vine leaf back-plate and finished by hand our first pieces.  We hope you like this new addition to the collection.