The four different sized manipulators shown for comparison: a Giant-IMp b IMp models with encasing support beams c Open-IMp d Micro-IMp models that are not encased. The specimens in the manipulators are: a Nosa tristis (Hagen, 1853) – Neuroptera: Myrmeleontidaeb Perissoneura paradoxa McLachlan, 1871 – Trichoptera: Odontoceridaec Pteronarcys californica Newport, 1848 – Plecoptera: Pteronarcyidae and d Psychopsis coelivaga (Walker, 1853) – Neuroptera: Psychopsidae.

The IMp model shown from a side view (A), front view (B), top view (C) and without the stabilizing case exposing the pivot arm wherein the specimen is placed (D). Figure labels and abbreviations: pivot handle (1), 8 tooth gear (2), worm gear (3), connector peg that holds and rotates the specimen (4), axis of movement 1 (A1), axis of movement 2 (A2), axis of rotation 1 (R1) and axis of rotation 2 (R2).

Two options for the modification to the connector pegs (b) to allow for insertion of the specimen pin: a 3 mm diameter tube with 0.1 mm nylon fibers (a+b); or a small plastazote plug (b+c).

The IMp models being used with the micro-IMp holding a specimen positioned for viewing.