#constraints clear

s&box Hydraulic tool: SliderJoint with MinLength=MaxLength=currentDistance cr...

s&box Elastic constraint: SpringJoint with Frequency > 0 and Damping > 0 for ...

s&box Thruster attachment: use FixedJoint with Attachment=LocalFrames, Linear...

s&box constraints: create as child GameObjects with ConstraintCleanup, not directly on target objects