Here are some items you can 3D print for your boat. I selected these with a small sailboat in mind. Make sure you choose the appropriate material and print settings for your application.
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This is a 3D printed version of my $40 Furler, provided by Chris Larsen.  Thank you Chris!  I highly recommend printing this in ASA plastic (or better) for strength, moisture and UV resistance. Print the spool core and upper disk with 100% infill for maximum strength. Click here for info on the $40 furler  | 
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| Fiddle block with cam cleat | 
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| Fiddle block without cam cleat | 
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| Clam cleat | 
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| Jam cleat | 
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| Boat hook - threaded | 
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| Clam cleat | 
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| Boat hook holder | 
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| Jamming cleat | 
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| Blocks for 6mm rope, light loading | 
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| Block - soft mount for 7-8mm rope | 
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| Blocks for 12mm rope, light loading | 
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| Lashing Block | 
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| Sextant - fully functional | 
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| Sail tie bungee cord cleat | 
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| Windex 10 Replacement Wind Vane | 
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| Windex replacement indicator piece | 
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| Wind indicator - Little Hawk style (I use this) | 
| Shackle key | 
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| Sister aka Inglefield Flag/burgee clips | 
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| Rope Splicing Fids (various sizes) | 
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| Boom Fairlead | 
| Mast hoop | 
| Masthead Fly | 
| Bungee clamcleat | 
| Snap Shackle | 
| Signal flag cleat wire clamp | 
| Shackle Wrench | 
| Batten Tip Covers | 
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| Double Jam cleats - my design used on Ellie | 
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| Hanger hook - my design. Installed under side deck. Used with a loop of rope to hang rope bolts and other gear | 
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| Fairleads (my design) | 
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| Cleat guards, prevents lines from snagging on cleat | 
























