This is a golf putter head primarily weighted by washers but also bolts and a few set screws. Depending on the number of washers you use, the head weight can be adjusted a few grams in either direction, but with 30 washers it was 364 grams. It has 2 degrees of loft and the lie angle is 70 degrees. Because I made a handful of prototypes and didn't want to glue a shaft into each to try them, in the pictures you'll see a 3/8" threaded rod glued into a putter shaft so i could simply screw the shaft onto the head, but the final head stl has a .370 hole for a standard straight putter shaft.

This was remixed from two components. Thanks to mtsracer for the putter design, and thanks to tanius for the parametric bottle design.

UPDATE: Added branding since I'm hoping to do a few more putter designs on here (the original unbranded is still attached)

Parts required:

• 2 - 3/8"-16 x 1.5" Zinc Plated Hex Bolts
• ~30 - 3/8" Zinc Plated Flat Washers (outer diameter ~1")
• 4 - 5/16"-18 x 1" Stainless Steel Set Screws
• 1 - .370 Putter Shaft
• 1 - Putter Grip