MBLU Bar Linkages Unit
The Bar Linkages Unit "MBLU" allows many experiments using different arrangements of their parts. The "MBLU" unit includes a selection of more than 20 perforated bars of different lengths and pivots or ‘joints’ to allow students to configure multiple choices of linkages.
Students assemble the bars and joints in any arrangement and note how the linkage converts movement from one form to another (for example: rotary motion to linear motion).
The unit includes magnetic "wipeable" sheets and holders for non-permanent markers so the student can mark the relative movements of the linkages or joints.
The unit presents students to key engineering terms such as four-bar linkages, rotary and linear movement, and planar linkages.
- Four-bar linkages – crank rocker, double rocker, drag link and parallelogram.
- Straight line linkages – Watt’s straight line, Chebyshev, Peaucellier-Lipkin, Hart’s inversor, Robert’s and Hoeken’s
- Ackermann steering.