fix(api): tune store_labware motion parameters and current to increase the z torque.

[vegano1]

Overview

Motion parameters need to be adjusted to account for tiprack weight by decreasing the speed when moving on the z axis when storing labware. This pull request decreases the z speed to half the move speed and also decreases the current back down to 1.5mAmps since the lower speeds increase the torque.

Test Plan and Hands on Testing

• Make sure we can store and dispense full tipracks and PCR plates

Changelog

• decrease the speed to half when moving the z axis in the store_labware function for higher torque.
• decrease the move and home current for the z axis back to 1.5mAmps since the higher torque makes up for the current.
• fix an issue when storing motion_parameters

Review requests

Risk assessment

Low, unreleased.

[vegano1]

thanks to @Carlos-fernandez for pointing this out.

[Carlos-fernandez]

Looks good!