Nov. 2, 2014 |
Time Contribution |
Tibi |
Work - Documenting |
1.00 HR |
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I had to document the work, upload the model online, update the R&D doc, arrange the VAS, etc.
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Create Prototype 1ax (buzzer) stack low cost, long range v4
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Prototype Mechanical - Manipulator actuator mechanical: Prototype 1ax (buzzer) stack low cost, long range v4
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Oct. 30, 2014 |
Time Contribution |
Daniel |
Work - R&D mechanics |
2.00 HR |
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Helped Tibi to print the parts. Needed to adapt the 3D model for printing, print, test.
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Create Prototype 1ax (buzzer) stack low cost, long range v4
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Prototype Mechanical - Manipulator actuator mechanical: Prototype 1ax (buzzer) stack low cost, long range v4
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Oct. 29, 2014 |
Time Contribution |
Tibi |
Work - Accounting and Finance |
4.00 HR |
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Assembled the piezo membranes on the plastic supports.
The supports were designed by Tibi with Daniel's help.
The supports were printed by Daniel.
See more in the R&D document.
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Create Prototype 1ax (buzzer) stack low cost, long range v4
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Prototype Mechanical - Manipulator actuator mechanical: Prototype 1ax (buzzer) stack low cost, long range v4
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Oct. 5, 2014 |
Time Contribution |
Tibi |
Work - Design mechanical |
5.00 HR |
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Worked a bit during several days with Luciano and others in the design and prototype document for the low-cost piezo buzzer manipulator
https://docs.google.com/document/d/1XLrD_v9Dzb44Z3LHlM3RX1UnG22Lh_Sww4oyrUSrMyc/edit#
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Design a low cost long range piezo stack
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v1
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Oct. 5, 2014 |
Time Contribution |
Luciano |
Work - Design mechanical |
9.00 HR |
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Worked with Tibi and others on mechanical design and applications of the low-cost piezo buzzer manipulator.
https://docs.google.com/document/d/1XLrD_v9Dzb44Z3LHlM3RX1UnG22Lh_Sww4oyrUSrMyc/edit#
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Design a low cost long range piezo stack
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v1
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Oct. 1, 2014 |
Time Contribution |
Daniel |
Work - Design mechanical |
0.50 HR |
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Assisted Tibi in designing this part.
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Create Design Actuator 1ax (buzzer) stack low cost, long range v4
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v4
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Oct. 1, 2014 |
Time Contribution |
Tibi |
Work - Design mechanical |
1.00 HR |
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3D modeled this part, with Daniel's help
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Create Design Actuator 1ax (buzzer) stack low cost, long range v4
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v4
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Sept. 29, 2014 |
Time Contribution |
Tibi |
Work - Documenting |
0.50 HR |
Open
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Updated the low cost piezo buzzer actuator design and prototype document
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Sept. 26, 2014 |
Time Contribution |
Tibi |
Work - Technician experimental |
4.00 HR |
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Assembled the prototype, documented it, and communicated about it.
https://docs.google.com/document/d/1XLrD_v9Dzb44Z3LHlM3RX1UnG22Lh_Sww4oyrUSrMyc/edit#heading=h.fcvvdjm56hk5
See video for tests
http://youtu.be/oMrYgvMbU_s?list=UU3W5xq0ll3E8TDa9VFSIdvQ
http://youtu.be/Hv5IEOgNB9g?list=UU3W5xq0ll3E8TDa9VFSIdvQ
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Create Prototype 1ax (buzzer) stack low cost, long range v3
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Prototype Mechanical - Manipulator actuator mechanical: Prototype 1ax (buzzer) stack low cost, long range v3
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Jan. 31, 2014 |
Time Contribution |
Antonio |
Work - R&D electronics |
4.07 HR |
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31/01/2014
New components added to the part list.
30/01/2014
Re-assembling a 3-Axis driver using the new PCB and updating the part list with the missing components
https://docs.google.com/spreadsheet/ccc?key=0AvKN6G919YgndElQenVpbUZ6UTk1N0liYm4zbGRKbkE&usp=drive_web#gid=5
15/01/2014
Connectorizing the 3-axis piezo finger. Instructions here: https://docs.google.com/document/d/1qGbzFsd7eTMJ2wGnYq7mnx2ik7y9CZoJWg2onIih7BY
Proceeding tests, The electronic system is working well, but the frequency limit is lower than we've supposed (about 25Hz using the filtered output, accordint to the datasheet we expect 3x this frequency using the non-filtered output).
The fiber is moving on the Z-axis, but we have a XY component working at the same time. I think this is due the bad quality of the actual mechanics and the non uniformity of the springs. I've also found a mistake at the top_base, it should the rotated by 45 degrees to be aligned with the XY-axis!
07/01/2014
Proceeding a heating test on the 3-axis PDm200: (https://docs.google.com/spreadsheet/ccc?key=0AvKN6G919YgndEEyamtKX1ZFU0Zkb1pIUTdFS2hybWc&usp=drive_web#gid=4)
1) no external dissipation, box closed, sensor on the black heat sink, measuring each 5min
2) Using the thermal pad with adhesive (H48-6G-20-20-2.6-1A) and NO thermal paste connecting the PDm200 to the aluminum box
No load or input
3) Using the thermal pad with adhesive (H48-6G-20-20-2.6-1A) and DO using thermal paste connecting the PDm200 to the aluminum box
No load or input
The tests showed the need of using the Thermal Pad but the use of Thermal Paste have not increase the dissipation capacity. A second test without thermal paste didn't have the same result, probable because the coupling between the 2 surfaces, a thicker thermal pad should solve this problem. The thermal pad data sheet shows that some pressure is necessary to obtain an optimal response.
06/01/2014
Redesign base PCB to fit 10cm long specification and reallocate components:
Base_PCB_3channel.SLDDRW
Design the Front and End plates:
K End Plate.SLDDRW
K Front Plate.SLDDRW
Board_2.SLDDRW
PDF versions saved here: https://drive.google.com/?tab=mo&authuser=0#folders/0B_KN6G919YgnTmRpNVQyYU1XR1U
10/12/2013 (1h7m)
search of components: BNC cable, piezo buzzer, thermal adhesive pad
R&D work on the Piezo Driver
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Make Piezo one/two/three-channel electronics
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Part Electronic - Manipulator Driver: 2ax MPM-S1
Part Electronic - Manipulator Driver: 214
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Dec. 31, 2013 |
Time Contribution |
Antonio |
Work - Design mechanical |
2.00 HR |
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Spent 2 hours with Tibi, brainstorming about this design.
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Design a low cost long range piezo stack
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v1
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Dec. 31, 2013 |
Time Contribution |
Tibi |
Work - Design mechanical |
2.00 HR |
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Worked with Antonio to do the design
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Design a low cost long range piezo stack
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v1
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Dec. 31, 2013 |
Time Contribution |
Daniel |
Work - Design mechanical |
5.00 HR |
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3D design on the casing for 3D printing
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Design a low cost long range piezo stack
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Design Mechanical - Manipulator actuator: Design Actuator 1ax (buzzer) stack low cost, long range v1
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Dec. 30, 2013 |
Time Contribution |
Tibi |
Work - Documenting |
1.00 HR |
Open
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pictures and documentation of the low cost long range piezo actuator. Also, I updated some resources in the VAS, changed names and added descriptions. I also modified the main doc for the piezo design and prototype, see link below
https://docs.google.com/document/d/1I5BPWf6O2QR9VRS-u3yF4WT9v0RuHnIVheRrNzASoxI/edit#
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Dec. 10, 2013 |
Time Contribution |
Tibi |
Work - Documenting |
0.50 HR |
Open
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continued to document this design/prototype. added some improvements.
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Dec. 10, 2013 |
Time Contribution |
Tibi |
Work - Shopping |
0.50 HR |
Open
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Shopping for parts for the low cost long range piezo stack
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Dec. 10, 2013 |
Time Contribution |
Jonathan |
Work - Shopping |
2.00 HR |
Open
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Shopping on Digikey and Aliexpress looking for Piezo Disks which will be part of a new proposed actuator system.
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Dec. 10, 2013 |
Give |
Tibi |
Currency - US Dollars |
147.08 USD |
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Converted from spreadsheet
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Dec. 10, 2013 |
Receive |
Tibi |
Currency - US Dollars |
147.08 USD |
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Converted from spreadsheet
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