Customer Handoff & Final Project Documentation
Table of Contents
Team Vision for Final Demo and HandoffThis phase was tasked with implementing any fixes and isolating critical design changes that are needed prior to customer handoff. The following deliverables were sought to be completed before the end of this phase:
In summary, the goals and requirements were not
completely fulfilled. Because this was the first
iteration of this system, there was a lot accomplished.
The team successfully built a 5x5x5 ft structure with a
moveable extruder platform on a flat printing surface.
The connection points were overlooked an in the
reconfiguration of the design. The final product had
eight connection points instead of seven. However, if
this adjustment was tabulated sooner, the customer could
have been contacted and the addition of another
connection point could have been discussed as a necessary
The extruder platform could not quite reach some corners of the build volume and the tension readings were somewhat off for some of the locations. To see these results, please reference the final system tests of movement and tension readings.
The budget for this project was $5,000. The remaining money after the system was built and tested was ~ $360. All major deliverables were handed in on time given that the final idea for the project was decided in January. This cut in half the time to design, build and test the system. Even with this time constraint, the system was constructed successfully and tested to almost satisfaction. There are still some areas where the design needs work, but as a first iteration, the final delivery was a success.
System ChangesThroughout the process of this build a couple of key design changes were observed. The first item involved switching the pulley orientation on the Y-axis to a horizontal plane.
The next item that changed involved swapping the X-axis
and Z-axis grab points.
Lastly, there were additional sheaths that were created to operate the motors safely while also still having direct access for modifications and testing.
The final build is shown as a whole unit with all the necessary design changes.
Test Results Summary
All tests were conducted to meet engineering requirements
and there were two results that were especially important
for the successful implementation of this project.
The first test, T03, was intended to measure the cable tension in throughout various points throughout the build volume. This test would help to determine the validity of the theoretical tension equation. More information can be found here
The second test, T08, was intended to record all distance
vectors for each measure point along with their
measurements when returning back to center. More
information can be found here
Risk and Problem TrackingCurrently, there are no more risks left for the duration of this project. As shown below, all risks have been closed for this phase due to fixes and changes.
This brings the overall risk level back down to 0 as
shown in our Trend chart.
Final Project DocumentationBelow are the following documents that pertain to the creation and documentation of all CAD, BOM, and additional supporting information for P18652.
Link to the final CAD drawings can be found here
Link can to Assembly Instructions can be found here
For a direct link to cable crimping Job Instruction, please click here
For a direct link to cable winding Job Instruction, please click here
For a direct link to pulley sheave Job Instruction, please click here
Link to the BOM can be found here
Link to the Operator Manual can be found here
In order to properly operate the printer a few pieces of software are needed. The following below are software requirements along with links to download them onto your specified platform.
|GBRL Link||Github Link|
|Arduino IDE 1.8 (At the time of writing this)||Arudino IDE Link|
|Universal G-code Sender||Github Link|
Recommendations for Future Work
- Dynamic Homing System
- Updating Pulley System
- Custom Firmware via Marlin
- Constant Force Spring
- New Tension Equation Theory
For a more detailed breakdown of the team plans, please click here
Plans for Wrap-up