- This design was created in response to a design request submitted by Field Ready, a non-profit 501c3, that seeks to make field ready humanitarian solutions to problems across the world. The design fulfills the need for a cheap single 3D print that will function as a ECG limb lead holder. The device was designed using dimensions similar to the previous device used as requested.
- Requested parameters for the printed part are as follows:
- 3D printable as a single item (not made up of multiple parts)
- Similar Dimensions to original part
- Quick, easy, and intuitive to use
- Contain an appropriate placed hole such that existing sensors can be attached
Bill of Materials[edit | edit source]
- Single Part file designed using FreeCad. The device was printed using Hatchbox translucent orange PLA with a 10% infill originally.
- Upload and link to all source files from open source CAD
- Free Cad File Version 1 (No Supports): File:ECG LIMB LEAD.FCStd
- Free Cad File Version 2 (Support Members): File:ECG Limb Lead V2.FCStd
- Uploaded STL
- Upload and link to all source files from open source CAD
Tools needed[edit | edit source]
- MOST Delta RepRap or similar RepRap 3-D printer
Technical Specifications and Assembly Instructions[edit | edit source]
- Printing Instructions:
- Print Speed: 100 mm/S
- Fill Density: 10%
- Layer Height:.20 mm
- Support Type: Everywhere
- Platform Adhesion Type: Brim (10 lines)
- Print time estimate: 55 minutes
- There is no necessary assembly
Common Problems and Solutions[edit | edit source]
- Curling of 3D print off of print bed - Due to the thin cross-sectional area it might be necessary to use a brim or skirt to secure the lower layers of the print to your print bed
Cost savings[edit | edit source]
- Estimated Cost ~ $0.35 depending on filament price
- No Commercial equivalent of dry electrodes
- Disposable ECG Electrodes sell at $7.50 for a 50 pack but are not available in many developing countries https://www.cablesandsensors.com/products/disposable-ecg-electrodes?utm_medium=cpc&utm_source=googlepla&variant=3536265092&gclid=CNaN9_GNsNACFYEdgQodJjAOaw