Hammer iso.jpg
Project data
Authors Connor Kmiec
Status Designed
Prototyped
Modelled
Verified
Verified by Connor Kmiec
Made? Yes
Replicated? No
Cost USD $ 5.23
Uses development, industry, gardening
Export to Open Know How Manifest
Device data
Hardware license CC BY-SA 4.0
Page data
Type Device, Project
Keywords 3D printing, construction, gardening, hammer, osat, tools, shelter, plastic
Published by Connor Kmiec
Published 2015
License CC BY-SA 4.0
Affiliations MTU
MOST
MY4777
Location data
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Location Michigan, USA

This OSAT project is a carpenter's hammer. In order to be heavy enough and duable enough to drive nails, a bolt is used for the hammering surface. The resulting product is a very strong hammer that can drive and remove nails. This hammer is an appropriate OSAT because a hammer is one of the most basic and necessary tools to build a structure. A hammer like this would be easy to print, low cost, and fill a real need for a developing area.

Link to Thingiverse page where customization can be done to the tool: http://www.thingiverse.com/thing:1182261

Bill of Materials[edit | edit source]

CAD Files

STL

Extra Parts

  • 3/4" x 3.5" bolt

Tools needed[edit | edit source]

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. 1/18" wrench for bolt installation.

Skills and knowledge needed[edit | edit source]

  • There is no special skills needed to make this tool.

Technical Specifications and Assembly Instructions[edit | edit source]

  1. If any changes to the design want to be done, open the SCAD file and adjust the parameters.
  2. Slicing instructions
    1. Fill % = 100 (Less infill could probably be used)
    2. Speed = 50 mm/sec
    3. Layer Height = .15 mm
    4. No support Needed
    5. I recommend using a brim on the print
    6. Print the hammer standing up, hammer head end down
  3. Print time with above settings will be about 15 Hours
  4. Tread bolt into hammer with a wrench after printing.

Common Problems and Solutions[edit | edit source]

Bolt can be difficult to thread into the hammer, I used a vise to hold the hammer stationary.

Cost savings[edit | edit source]

  • Filament needed: 235 grams @ $18.39/kg = $4.32
  • Hardware needed: 1 bolt @ $0.91
  • At a total cost of $5.23

Commercial Equivalents

  • Equivalents range from $9.97 ([1]) to $199.97 ([2])

Saving amount

  • The savings are anywhere from $4.74 to $194.74
  • The percentage saved ranges from 47.5% to 97.4%

Gallery[edit | edit source]

References[edit | edit source]