P18572: Telescope K-Mirror Array
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Build & Test Prep

Table of Contents

Test Plan Summary

Figure 1 shows the current engineering specifications and test plan name associated with each specification.

Figure 1: Engineering Specifications Summary & Test Plans

Figure 1: Engineering Specifications Summary & Test Plans

Detailed Test Plans

Figure 2 shows the s1 test plan, which involves RS485 communication from the Raspberry Pi to the motor controller.
Figure 2: Test Plan S1

Figure 2: Test Plan S1

Figure 3 shows test plan s2. This test is designed to verify the emergency buttons operate as intended when activated.

Figure 3: Test Plan S2

Figure 3: Test Plan S2

Figure 4 shows test plan s3, which involves verify thing the Raspberry Pi can command the motor to turn to specified locations.

Figure 4: Test Plan S3

Figure 4: Test Plan S3

Figure 5 shows test plan s4. This is designed to test the control algorithms with simulated telescope data.

Figure 5: Test Plan S4

Figure 5: Test Plan S4

Figure 6 shows test plan s5, which verifies the absolute encoder works properly over SPI.

Figure 6: Test Plan S5

Figure 6: Test Plan S5

Figure 7 shows test plan s6. The goal is to verify the limit switches shut the system down as intended.

Figure 7: Test Plan S6

Figure 7: Test Plan S6

Figure 8 shows test plan s7, which determines if the location of the mirrors is within tolerance. This is conducted by using a FARO arm to precisely map the mirror positions.

Figure 8: Test Plan S7

Figure 8: Test Plan S7

Figure 9 shows test plan s8. Using the FARO arm, the system will be tested to see if it rotates to the specified -145 degrees to 135 degrees.

Figure 9: Test Plan S8

Figure 9: Test Plan S8

Figure 10 shows test plan s9, which tests the deflection of the system due to the gravity vector. Measurements will be made using the FARO arm.

Figure 10: Test Plan S9

Figure 10: Test Plan S9

Figure 11 shows test plan s10. Using the FARO arm, the HOME position will be measure to see if it is within tolerance.

Figure 11: Test Plan S10

Figure 11: Test Plan S10

Figure 12 shows test plan s11. The goal is to determine how repeatable the motor is under loaded conditions. The system must be able to return to original position and be within 0.15 degrees to be within tolerance.

Figure 12: Test Plan S11

Figure 12: Test Plan S11

Figure 13 shows test plan s12. This test measures the precision of one step of the motor. Must be under 0.15 degrees to be with tolerance.

Figure 13: Test Plan S12

Figure 13: Test Plan S12

Design Review Materials

The current test plans are available for download in the following formats:

Risk and Problem Tracking

Figure 14: Risk Management Summary

Figure 14: Risk Management Summary

The current Risk Management document can be found here: Risk Management

Some of our risks have manifested themselves as problems, they can be found here: problem tracking.

Plans for next phase

Team Plans

As a team, we are still waiting on some components to arrive. Once these components arrive, we will begin testing. We currently have secured lab space to begin testing. In the meantime, we are continuing to update our documents as much as possible.

Individual Plans

Mark

Ian

Steven

Justin

Kevin

Emily

Project Timeline for MSD II

Figure 15: Project Timeline for MSD II

Figure 15: Project Timeline for MSD II


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