NEMA 6-50 Plug Cover.JPG
Device data
Project data
Authors Dan Tauchen
Completed 2019
Made No
Replicated No
Cost USD 0.42
Instance of Welder plug cover
OKH Manifest Open Know-How Manifest Download

I currently have a job lined up with a welding company as a Mechanical Engineer upon graduation and thought about how male electrical receptacles were treated. Female ends/outlets for welders already have covers for their receptacles. When a plug gets wet or dirty, the operator typically blows it off; this plug cover mitigates the causes for this need. This cover is for a NEMA 6-50 plug.

Bill of Materials[edit | edit source]

  1. Any filament works
  2. A 3D printer
  3. A computer
    1. Open source file, stl, and used g.code can be found on YouMagine

Tools needed[edit | edit source]

  1. MOST Delta RepRap or similar RepRap 3-D printer

Skills and knowledge needed[edit | edit source]

  • Basic 3D printer knowledge
  • Basic slicer knowledge

Technical Specifications and Assembly Instructions[edit | edit source]

  1. Download STL, or customize a new model and download
  2. Slice STL file in slicer of choice (10% infill should be sufficient)
  3. Print part (print time is about 1.5 hours)
  4. Insert NEMA 6-50 male plug into printed plug cover

Common Problems and Solutions[edit | edit source]

The main issue would be from tolerances. Current design has a 0.5mm tolerance for the plug. This may need to be adjusted if the cover falls off or does not fit.

Cost savings[edit | edit source]

A cover like this cannot be found easily on the market if at all, but this print would cost $0.42 if a $20 1kg spools of PLA was used.

Benefited Internet Communities[edit | edit source]

References[edit | edit source]

No references due to this being a new idea.

Page data
Type Device, Project
Keywords 3d printing, welder plug cover, shock risk reduction, osat
SDG Sustainable Development Goal SDG08 Decent work and economic growth
Published 2019
License CC-BY-SA-3.0
Affiliations Michigan_Tech's_Open_Sustainability_Technology_Lab, MTU, MY4777
Language English (en)
Impact Number of views to this page and its redirects. Updated once a month. Views by admins and bots are not counted. Multiple views during the same session are counted as one. 102
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