Nightforce - Automated Thread Burnishing

Produce a machine to burnish riflescope turrets and check the backlash of those turrets using an automated process.

=Problem Definition= Produce a machine to burnish riflescope turrets and check the backlash of those turrets using an automated process.

Background
The point of aim in a riflescope is adjusted using a leadscrew assembly called a turret. In order to maintain precision, the turrets need to have a backlash of approximately 0.0001 inches. This level of precision cannot reliably be machined, so the threads must be manufactured over-sized and then fit through a process called burnishing. Currently this process is done by hand, which is time consuming, inconsistent, and prone to failure. Using an automated machine can make this process faster and more accurate, resulting in less time spent and less turrets discarded.

Deliverables
The deliverable is a machine capable of burnishing the turrets and testing the backlash. This machine must be able to handle current turret models, and be upgradable to handle any future models.

Specifications
The machine must be able to fit on a workbench, with a maximum size of 2 ft by 2 ft. It must be easily moved if necessary, with a maximum weight of 50 pounds. It should be able to burnish turrets at a similar rate to the current process. It must also be user friendly, and any parts that need to be changed to burnish different turret models must be easily accessed and quickly changed.

=Design Considerations=

=Project Learning= For this project the team needed to learn a great deal of additional information. Here is some of what we researched and brainstormed.

Workflow
Workflow involves how to get the turrets into our burnishing machine and how to move the turrets from one station to another.

Backlash
=Final Design=

=Validation=

=Team Members=

=Additional Documentation=

Project Schedule



Meeting Minutes



Presentations



Client Interview