Chosen Concepts:

The combination mechanism and the screw pin mechanism are the two chosen designs to push forward with.  Calculations, prototypes and testing will commence with these two designs.  These two mechanisms could possibly be combined into one apparatus. 

Integration of Preliminary Designs into our Final Design:

 Preliminary designs had to be modified due to the hex head being oriented on point rather than on face than originally designed for. 

Screwing operations determined as best and most desirable way of controlling motion.

The two concepts were combined into one assembly to minimize required operations inside the hot cell.

A fine tuning positioning drive provides positioning abilities without time consuming operations

Machining Process:

Many of the dimensions and parts of the assembly were determined from how it will be machined.

All Fillets result from the size endmill used to machine the contours.

Thickness of several components, Side Pieces, were dimensioned from the size holes that needed to be drilled through it.

Drawing package was developed and looked over by mentors and machine specialists. 

Drawing package was finalized and work commenced on machining the the final design

Assembly and Testing:

All parts lined up and fastened as designed

All linear systems work properly providing ease of use in moving all the parts.

The overall positioning system works extremely well without any sign of potentially binding with the single driving side

Screw Punch Testing

Deflection of the rod was not detected

Rod screwed through and pushed the pin out without issues

A chamfered end will aid the use in cell

Hook Testing

Binding not an issue if rods are held in place

The acme screw provides plenty of force to remove the fins

Through testing, no deformation of the hook developed

Clamp Testing

Clamp held the assembly and the frame in place when used.

This plus the weight of the actual assembly will prevent any motion during disassembly

 Testing at INL    

All operations worked using the manipulators at INL.  None of the operations proved to be difficult or cumbersome

The only difficult part is lining up the screw punch to start the process