Grabber - Large Size

thingiverse

Overview This Grabber Comes From The Parametric Grabber. The Hand As It Was Designed Was Too Small, So I Set About Making It Bigger. I Increased It By 133%, Which Allowed Me To Use A 21.5mm PVC Pipe As The Arm / Tube. The Pipe Is Common In Most Countries: Uk, Australia, Usa (1/2" SCH-40). This Grabber Has A New "Toy" Trigger Handle As The Original Was Too Hard For The Kids, So I Set About Making A Simpler Trigger Style Handle And This Is The Result! The Trigger Rotates A Cog Which Is The String Puller. All 4 Fingers Work In Unison, Not Independent. Parts Required Strong Non Stretch Fishing Line Strong Thin Elastic (I Got Some From The Local Sewing Shop) Filament To Use For The "Joint" Bolts 2x 20 - 30mm M4 Bolts (They Form The Hinge Pins For The Handle) Assembly & Print Notes The Finger In This Model Has The 3D Support Strictures Already Added (Just As I Printed It 18 Months Back). The Handle Can Be Glued Closed. I Have Not Done That Yet. I Have All Parts In Sketchup If Anyone Wants Them The Edges Of The Handle Are 90˚ Sharp. (Perhaps They Need A Softer Edge) Be Super Carefule With The "Hand" Square Edges On The Palm. We Had One Kid With A Bleeding Head Because Of It. Tieing The Fishing Line Tight Is Tricky. Get The Elastic Super Strong Is My Advice. Print Settings Printer Brand: RepRap Printer: MendelMax2 Supports: Yes Notes: I Printed It In Pla Post-Printing I Used 2 M4 Bolts To "Secure" The Cogs / Trigger. I Drilled Out The Cog And Trigger Holes To Larger To Make It Work. Fishing Line Tieing Is An Art. The Plastic "Filament" Bolts Were Used On The Hand.