Addendum to Pentapods with Mobility 2

TL;DR

This paper extends previous work on pentapods with mobility 2 by addressing missing cases, revealing additional solutions that were previously known but not included in the initial classification.

Contribution

It completes the classification of pentapods with mobility 2 by identifying and discussing cases previously omitted, connecting to known solutions by Duporcq.

Findings

Additional solutions to pentapods with mobility 2 identified

Incomplete classification from prior work corrected

Connections to known solutions by Duporcq established

Abstract

In a foregoing publication the authors studied pentapods with mobility 2, where neither all platform anchor points nor all base anchor points are located on a line. It turned out that the given classification is incomplete. This addendum is devoted to the discussion of the missing cases resulting in additional solutions already known to Duporcq.