CARVER U Joe Beshar Since Day always used balsa plywood basswood selectively built models recently did become interested using foam learned work using band saw hot-wire method sanding hand power etc ways just fine straight lines curves can cut straight-line fashion came carving Ijust able find way carve shape reasonably because foam pellets dislodging So conceived designed Carver really simple device quite inexpensive build employs hotwire process form allows carve foam leaving nice surface finish can final-sized fine sandpaper power source step-down transformer 1 15V 24V 1 15V line standard lighting dimmer switch wired vary resistance 24V line three-amp fuse nichrome wire wired circuit nichrome wire strung form U over ends crosspiece notched both ends down through slits handle held snugly place strips plywood Tension kept nichrome wire expansion spring spring compressed nichrome wire assembled Two 3A2 collars tightened pinch nichrome wire wires 24V power supply Operation Plug 11 5V power turn dimmer switch adjust piece scrap 48 Model Aviation arver pieces ready assembly Spring used maintain proper tension nichrome wire author demonstrates Carvers ability shave foam block Adjust temperature pieces scrap foam Photos author Graphic Design Jill Ann Cavanaugh DIMMER SWITCH 11 OV AC THE FOAM CARVER 24V LEAD-IN WIRES CHROME 3AMP/RE SIG FUSE / AC 24V TRANSFORMER /32 DIA COLLARS WIRING DIAGRAM foam proper cuffing temperature Carve shape foam project desired Wingtips nose blocks etc can shaped Wherever compound-curve foam surface needs shaped tool will prove helpful Note If increased throat depth desired use larger-diameter handle increase length crosspiece accordingly Beshar 198 Merritt Dr Oradell NJ 07649 CROSS PIECE CyA glue DOWEL 11/2 LONG WIDE RAZOR SAW OR BAND SAW SLIT 1/3 DEEP HANDLE 1/2 DOWEL 4 LONG F DRILL TO 1/4 FROM IBorroM II J II :I III IF LARGER THROAT IS DESIRED USE LARGER-DIAMETER HANDLE DOWEL AND LONGER CROSS PIECE Compound Curves Carver use shaping foam nose section B-17 July 1999 49 System consists Carver handle 24V transformer dimmer switch Wiring NICROME WIRE SIG 1/4 DOWEL NG EXPANSION PRING -7/asOD x 2 LONG SERVASTAR HARDWARE #2 1/35 X PLYWOOD STRIPS 4 LONG 2 IL i COLLAR 2 24V LEAD-IN WIRES 2
Edition: Model Aviation - 1999/07
Page Numbers: 48, 49
Edition: Model Aviation - 1999/07
Page Numbers: 48, 49
CARVER U Joe Beshar Since Day always used balsa plywood basswood selectively built models recently did become interested using foam learned work using band saw hot-wire method sanding hand power etc ways just fine straight lines curves can cut straight-line fashion came carving Ijust able find way carve shape reasonably because foam pellets dislodging So conceived designed Carver really simple device quite inexpensive build employs hotwire process form allows carve foam leaving nice surface finish can final-sized fine sandpaper power source step-down transformer 1 15V 24V 1 15V line standard lighting dimmer switch wired vary resistance 24V line three-amp fuse nichrome wire wired circuit nichrome wire strung form U over ends crosspiece notched both ends down through slits handle held snugly place strips plywood Tension kept nichrome wire expansion spring spring compressed nichrome wire assembled Two 3A2 collars tightened pinch nichrome wire wires 24V power supply Operation Plug 11 5V power turn dimmer switch adjust piece scrap 48 Model Aviation arver pieces ready assembly Spring used maintain proper tension nichrome wire author demonstrates Carvers ability shave foam block Adjust temperature pieces scrap foam Photos author Graphic Design Jill Ann Cavanaugh DIMMER SWITCH 11 OV AC THE FOAM CARVER 24V LEAD-IN WIRES CHROME 3AMP/RE SIG FUSE / AC 24V TRANSFORMER /32 DIA COLLARS WIRING DIAGRAM foam proper cuffing temperature Carve shape foam project desired Wingtips nose blocks etc can shaped Wherever compound-curve foam surface needs shaped tool will prove helpful Note If increased throat depth desired use larger-diameter handle increase length crosspiece accordingly Beshar 198 Merritt Dr Oradell NJ 07649 CROSS PIECE CyA glue DOWEL 11/2 LONG WIDE RAZOR SAW OR BAND SAW SLIT 1/3 DEEP HANDLE 1/2 DOWEL 4 LONG F DRILL TO 1/4 FROM IBorroM II J II :I III IF LARGER THROAT IS DESIRED USE LARGER-DIAMETER HANDLE DOWEL AND LONGER CROSS PIECE Compound Curves Carver use shaping foam nose section B-17 July 1999 49 System consists Carver handle 24V transformer dimmer switch Wiring NICROME WIRE SIG 1/4 DOWEL NG EXPANSION PRING -7/asOD x 2 LONG SERVASTAR HARDWARE #2 1/35 X PLYWOOD STRIPS 4 LONG 2 IL i COLLAR 2 24V LEAD-IN WIRES 2
