Project completed.jpg
Project data
Authors Matthew Pollack
Completed 2016
Made? Yes
Cost USD $ 1.5
Export to Open Know How Manifest
Page data
Type Device, Project
Keywords 3D printing, construction, corner trowel, osat, tool, Plastic
SDGs Sustainable Development Goals SDG09 Industry innovation and infrastructure
Published by Matthew Pollack
Kathy Nativi
Fionaconnor
Published 2016
License CC BY-SA 3.0
Affiliations MTU
Michigan_Tech's_Open_Sustainability_Technology_Lab
MY4777
Language English (en)
Page views 99


When money is hard to come by and other tools take priority, a tool that makes a corner at a 90 degree angle is usually not high on the list of equipment to buy. I wanted to make a relatively cheap tool that can do this. Normally a tool like this can go from anywhere between $10-20 but since it has a relatively small window of use, it is not often purchased. This project was designed for people that cannot afford a more expensive version of this tool as printing this in PLA is approx. $2.00

Bill of Materials[edit | edit source]

  1. Total two parts made in OpenSCAD. Total ~150 grams of filament
    1. Cornering Tool
    2. Handle
  2. All files posted at : | Youmagine Link

Tools needed[edit | edit source]

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

Skills and knowledge needed[edit | edit source]

  • None, just connect the two pieces together as shown in the picture.

Technical Specifications and Assembly Instructions[edit | edit source]

  1. Printing Instructions:
    1. Print Speed : 60 mm/s
    2. Fill Density : 25%
    3. Layer Height : .15 mm
    4. Support Type : Touching build plate, ONLY FOR THE HANDLE
    5. Platform Adhesion Type : Glue stick
  2. Print time : ~13 Hours, 8 hours for the main part, 5 for the handle
  3. Assembly Instructions:
    1. Connect the two pieces as shown in the picture above.
    2. Assembly time: 1 minute

Common Problems and Solutions[edit | edit source]

  • Be careful removing the main Cornering Tool piece from the glass bed. Use an exacto-knife and carefully remove to not break the glass.
  • Be sure to use sufficient adhesive on the glass bed so that the main Cornering Tool piece does not have its edges bow upwards.

Cost savings[edit | edit source]

  1. Total Material Amount: 200 grams
  2. Estimated Cost: ~ $1.50 depending on filament price
  3. Commercial Cost: $10-20 | Home Depot's Wall Cornering Tool
  4. Total Savings: ~7.50

References[edit | edit source]