Community Comment Box

Device data
Manufacturing files	https://www.youmagine.com/designs/lockable-community-note-drop-box
Hardware license	CERN-OHL-S
Certifications	Start OSHWA certification

This OSAT prototype is a community comment box where members can drop in comments that can not be removed other than by removing the lock from the back. This fulfills the need for communities to provide a location for honest feedback that can not be tampered with.

Bill of Materials

BOM for this project includes:
- PLA (This revision printed in white, Hatchbox PLA)
- Lock of choice to lock box closed
Link to all source files from open source CAD:
- Box bottom FreeCAD: File:Box bottom.FCStd
- Box top FreeCAD: File:Box top.FCStd
Link to all STLs:
- https://www.youmagine.com/designs/lockable-community-note-drop-box

Tools needed for fabrication of the OSAT

MOST Delta RepRap or similar RepRap 3-D printer

Skills and Knowledge Necessary to Make the OSAT

No special skills are needed

Technical Specifications and Assembly Instructions

First print both lower box and lid portions of the drop box.
- Print speed: 100 mm/s
- Infill: 10%
- Layer height: 0.2 mm
- Temp: 205 degree Celsius
If support in the print was used, remove the support material so the lid can slide in.
If no support material was used, simply slide the lid into the grooves and lock it via the holes on the back side.

Estimated print time for the lower box portion is 7 hours. Estimated print time for the box lid is 2 hours.
Assembly time is minimal. Simply slide the lid in the slot and lock the box.

Cost savings

Estimated costs: $3.59
Commercial equivalent: $11.15 [1]
$ savings: $7.56
% savings: 68%