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Science #10

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12 tasks
MayaEnriquez opened this issue Oct 5, 2023 · 6 comments
Open
12 tasks

Science #10

MayaEnriquez opened this issue Oct 5, 2023 · 6 comments
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@SGraysonSpangenberg

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@MayaEnriquez
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MayaEnriquez commented Oct 5, 2023 •
edited by SGraysonSpangenberg
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Steps for rebooting science mission:

Talk to current and past science: Viha, Tommy, Kate,
Review Past Bot: Issues 22, 24, 27, 46
Review Past Cad: https://cad.onshape.com/documents/b97908e17fca3929ddd39b66/w/d2da11b1b8072d5890f9997f/e/476a0eab40234fb23f52d635
Review Old Proposal: In Google Drive?

Flow Path

    1. Collect Sample from soil
    1. Ensure system is capable of moving while testing -- SEAL SAMPLES WITH REAGENTS!!!!
    1. Test Alpha: Monosaccharides Test -- Heat + Benedict's Reagent + Sample + Water Yields a Green/Orange Color Reaction
    1. Test Beta: Proteins Test -- Potassium Hydroxide + Copper Sulfate + Sample -- Purple Color Test
    1. Possible system cleaning/filter against cross contamination
    1. Repeat 3x -- at least 2 locations allowed for 3 -- 1 extra removable cache sample

Collecting Samples

  • End Effector able to collect deeper soil samples
  • End Effector needs to be able to pull temp/humidity data from below surface level
  • Arm able to reach science bot
  • Funnel or opening for sample to be deposited

Processing Samples

  • Neatly hold samples: Test Tube, Revolver, etc
  • Store samples(Cannot contaminate or dump)
  • Test Alpha
  • Test Beta
  • Ensure proper seals and no possible spillage

Product Considerations

  • PCB + Wire Management
  • Resize Science Bot accordingly - Neater assembly process preferred
  • Figure out our mounting positions
@SGraysonSpangenberg
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SGraysonSpangenberg commented Oct 5, 2023 •
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Goals of individual tasks -- Design Requirements

End Effector

  1. Sub 10 cm sample of 5 grams separated from the top soil above it
  2. surface level sampling for life testing
  3. Moisture, Temperature of sub 10cm depth sample.
  4. Aim for less then 2 Kg in weight

Sample Storage And Collection

  1. Post collection the 5g sample must be stored and sealed in a system that is capable of being removed without contamination from science
  2. Storage should be done in a way to also allow for testing/processing to determine life

Processing Samples

  1. "At each site the rover will need to determine the absence or presence of life... and may collect a small amount of regolith/soil for analysis by instrumentation on board the rover."
  2. Stratigraphic profile and evidence of water in the profile
  3. Results of on-board rover and laboratory tests performed
  4. Meaning of resulting data

@SGraysonSpangenberg
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SGraysonSpangenberg commented Oct 5, 2023 •
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Sources and Notes

Previous Year's Sensors and processes:
https://docs.google.com/document/d/1NxNnKzvBrbstN7mQaU7J9C3O7eHeNqhoQLkGws0sf14/edit
Related Abstract
https://docs.google.com/document/d/1pS_YGaPwvcmqC9ZwwAFlAgUrTStsHiUPH2hkjgGjnhg/edit#heading=h.q502pa56hp42
URC 2020 Discussion -- Reminders about what is detecting life vs looking for habitability
https://docs.google.com/document/d/10YmA7fixDdeBSykO5AWw5Ahf5mXLAnm8c6KxJFx7EV8/edit
Lab related to 2024 Processes
https://bio.libretexts.org/Bookshelves/Biotechnology/Lab_Manual%3A_Introduction_to_Biotechnology/01%3A_Techniques/1.09%3A_Biomolecule_Detection
Data Sheet related to safe tubing requirements
https://www.bnl.gov/esh/shsd/pdf/compressed_gas/chem_comp_tubing_material.pdf

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SGraysonSpangenberg commented Oct 5, 2023 •
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Current Questions

  • Confirm Model of Spectrometer -- Unsure if using
  • Define contamination (to what degree are we avoiding it)
  • Figure out what test chemicals were originally intended to be used for detecting life New tests being performed

@ouandrew
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ouandrew commented Oct 7, 2023 •
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End Effector -- Brainstorm

  1. Arm bring sample to box
    2. Conveyor Belt
    3. Yeet it
  • Core drill to collect sample - dump 5 g into science box, dump excess elsewhere
    • To determine 5g perhaps we can use weight sensor? I think we could just guesstimate it
    • Some sort of plunger system to push 5g sample and excess out? Shake out?
    • Soil might not be compact enough to stay in drill - could tilt horizontally
  • For temp & humidity requirements, end effector to measure temperature in hole w/ smth like a meat thermometer combined with humidity sensor

TODO

Linear !
https://www.amazon.com/GUWANJI-SBR12-500mm-Bearings-suppoeted-500mm/dp/B08B3VDLTK/ref=sr_1_5?keywords=linear%2Brails%2B500mm&qid=1705783630&sr=8-5&th=1 - guide rails, might have?
+
https://www.omc-stepperonline.com/nema-17-non-captive-44ncm-62-31oz-in-48mm-stack-1-68a-lead-8mm-0-31496-length-200mm-17n19s1684mb4-200rs
+
https://www.amazon.com/500mm%EF%BC%8819-69-Inches%EF%BC%89Tr8x8-Thread-Printer-Machine/dp/B08JPMH4V9/ref=sr_1_6?crid=3UKM58VF6A9GL&keywords=500%2Bmm%2Blead%2Bscrew&qid=1705784403&sprefix=500%2Bmm%2Blead%2Bscre%2Caps%2C223&sr=8-6&th=1

Sources
Video on Perseverance's Sample Collection System
https://www.youtube.com/watch?v=l9KQjtdRPE4
Core Ice Drill Resources
https://neem.dk/billeder/drillinguk.jpg
https://icecores.org/about-ice-cores#:~:text=Ice%20cores%20are%20typically%20drilled,with%20cutters%20at%20the%20head.
Ice Augur
https://m.media-amazon.com/images/I/51cvUGUbYpL._AC_SX679_.jpg
Perseverance Drill Bits
https://www.nasa.gov/missions/mars-2020-perseverance/perseverance-rover/nasas-perseverance-rover-gets-the-dirt-on-mars/#:~:text=As%20with%20rock%20cores%2C%20these,end%20to%20gather%20loose%20material.
https://www.nasa.gov/wp-content/uploads/2022/12/e1b-pia25590-perseverances-drill-bits-1041.jpg
https://mars.nasa.gov/mars2020/mission/status/327/why-and-how-perseverance-abrades-rocks/
Drill Bits Research
https://i.ebayimg.com/images/g/pacAAOSweW5VaWps/s-l1200.webp <- longer? can chop off and extend if we can't make own sharp things
https://www.bonanza.com/listings/3-4-Diamond-Core-Drill-Bit-6-in-deep-Holes-in-Concrete-Floor-Brick-Cement-Block/1397009738?goog_pla=1
Rock Density Table
https://www.researchgate.net/publication/327916653/figure/tbl1/AS:675497105190914@1538062468286/Rock-types-density-values.png
Suggested Drill Speeds
https://www.udt.com.au/view/core-drilling/core-drill-data < says 3000 for wet
https://www.cessco.us/core_bits/recommended-core-bit-speed.html < 7000 (4475 - 7960)

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SGraysonSpangenberg commented Oct 7, 2023 •
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Science Black Box -- Brainstorm

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SGraysonSpangenberg commented Oct 7, 2023 •
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Parts Currently In Science Box -- This section is moving to Science_2023 #17 Science Current Inventory

  1. 1x USB C Cable
  2. 3x servo (2x Feetech 1x Kuman)
  3. 6x Gas Sensor
  4. 1x Set of PH paper
  5. 2x resevoirs -- unkown material???
  6. 1x Sprectrometer -- Needs to be worked on
  7. 19ish magnetic detector -- Gikfun A3144
  8. Probably 2x Vacuum Pump -- JY370APM

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