Moment Teaching Scale
Moment Teaching Scale
3D
Published 2019-10-22T16:10:11+00:00
This is a teaching aid that was designed to be used to teach students early in their engineering college career or high school students in a engineering-fundamentals class about moments. Moments are a very import and fundamental concept within many of the engineering disciplines.
This scale was designed to be used with a stack of US pennies (I recomend 6 pennies per scale). The holes on the beam are equally spaced from the centerline of the beam (2 pennies on the closer hole = 1 penny on the farther hole on the other side).
This shows the direct proportionality between the distance from center of rotation (which penny stack hole is used) and the force (weight of pennies) to teach a student the fundamentals of moments.
"The magnitude of the moment of a force acting about a point or axis is directly proportinoal to the distance of the force from the point or axis" - Shaeffer, R.E. Elementary Structures for Architects and Builders. pp. 33-39.
Moment = (Force) x (distance)
Print Cost = $1.12 (assuming $20/kg for filament)
All parts have printed in PLA with great success using the following settings:
Layer Height = 0.10mm
Infill Percentage = 30%
Infill Type = Lines
Extrude Temp = 220C
Shell thickness (top, bottom, and sides) = 2.0mm
Support = none used
| 发表的日期 | 22/10/2019 |
| 材料数量 | 56 grams |
| 支持自定义 | YES |