Videos

Rice Transplanter Six-bar

Rice Transplanter Six-bar

This is a revised version of the rice transplanter linkage designed by Mark Plecnik. It uses an RPR chain to provide the basic movement, which is then constrained by the addition of two RR dyads. The result is a six-bar linkage that provides a more direct movement from selection of the seedling to insertion in the ground.

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Icon A5 Wing Deployment Spherical Linkage

Icon A5 Wing Deployment Spherical Linkage

This spherical four-bar linkage was designed by Kaustubh Sonawale to guide the wings of the Icon A5 from deployed to stowed positions and back.

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Spherical Four-bar Linkage Design: Mech Gen 4

Spherical Four-bar Linkage Design: Mech Gen 4

This version of Mechanism Generator uses five orientations of a moving body to design a spherical four-bar linkage. As with other versions of Mech Gen the system searches in tolerance zones around the task positions to find a number of useful designs. This is more good work by the team of Alex Arredondo and Kaustubh Sonawale.

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Bobbin Linkage for a Rotating Weaver

Bobbin Linkage for a Rotating Weaver

This linkage is designed to guide the bobbin thread of a rotating weaver to knit the reinforcement web for hosing. Though only one linkage is shown, there is one linkage for each bobbin. This design was developed by Mark Plecnik with help from Kaustubh Sonawale.

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Icon A5 spherical four-bar wing linkage

Icon A5 spherical four-bar wing linkage

This shows the wing movement of the Icon A5 as guided by a spherical four-bar linkage. This is a new design by Kaustubh Sonawale which ensures the wing clears the horizontal stabilizers in the rear as it moves from the deployed to folded positions and back again.

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Six-bar gripper with fine adjustment

Six-bar gripper with fine adjustment

This is a robotic gripper designed by Andrea Carli and Kaustubh Sonawale. It uses a six-bar linkage for the primary movement and a slider adjustment to provide a gripping fine movement.

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5-SS Steering Linkage

5-SS Steering Linkage

This steering linkage is designed to increase the track, decrease the wheelbase and adjust the camber to stabilize high speed turning of the vehicle. The design theory uses an iterative procedure to identify task positions, solve the link constraint equations and analyze candidate designs to guarantee effective movement. This is research by Mark Plecnik.

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Adjustable spinal implant

Adjustable spinal implant

Brandon Tsuge and Tim Rasmussen developed this concept for an adjustable spinal implant. The six-bar linkage provides 5mm of movement to accommodate a patient’s adaptation to the implant.

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Instrument for spinal implant

Instrument for spinal implant

This instrument is a six-bar linkage designed to separate vertebral segments for manipulation of a spinal implant. This design concept was developed by Brandon Tsuge and Tim Rasmussen.

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Rice Transplanter

Rice Transplanter

This rice transplanter selects seedlings from the hopper and plants them into the ground using a four-bar linkage designed by Mark Plecnik.

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