Building the DR4B

The 333A tutorial was already linked by DougMoyers, but I included it here to have a nice collection of links for you.

Double Reverse Four Bar (DR4B or RD4B) - PSig

DR4B attachment help - VEXF

The Kepler Electronics Guide To The DR4B - Kepler yt

DR4B Tutorial by 333A - google doc

DR 4+8 B lift gif - VEXF

DR6B lift example - image

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