Annemarie's working on our Four-Bar linkage mechanism, a possible glyph lifting mechanism! We're just finishing up our prototyping process and look... | By Marlbots FTC 3526 | Facebook
Double Reverse Four Bar (DR4B or RD4B) - BLRS Wiki
The Ultimate Guide To Bar Lifts - YouTube
How to make a four bar lift - VEX V5 Technical Support - VEX Forum
What sorts of lifting mechanisms are teams looking into for 2019? - Technical - Chief Delphi