January 2020 STEAM Camp Kits BOM: Difference between revisions

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=Shipping - add about $20 per kit for shipping=
=Final Spreadsheet=
<html><iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-1vQXr0yLQXZ0FEkLKndz5E-m0eBTdOVrpG1zf7nV1vxY4Gu04VQvINthH1KnmPAKcEH5rvUuIYFNQFOP/pubhtml?widget=true&amp;headers=false" height=500 width=500></iframe></html>
 
[https://docs.google.com/spreadsheets/d/1OOqqDsvEP2sL7xdTfUrtBirDCjk6aEAbBwyjZDt_-lk/edit#gid=1571230577 edit]
 
=Working Spreadsheet=
<html><iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-1vSfyLTqdJ5eZXKBk3iXg3qSDnXQMDfPpCOK8obIfZISreYI66y4TpSwfc7__pG72wjG3IqRfB1R73nD/pubhtml?widget=true&amp;headers=false" height=500 width=500></iframe></html>
 
[https://docs.google.com/spreadsheets/d/1Bcgs6SOs9Cs7rSUozhYbh0CJ857sXnobQ9B1GNRENBk/edit?folder=0ALpE5Y9PpJCXUk9PVA#gid=0 edit]


=Tablet=
=Tablet=
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*Bluetooth and phone for $40? - [https://www.amazon.com/Raspberry-Bluetooth-Expansion-Compatible-DataTransfer/dp/B076CPX4NN?th=1]
*Bluetooth and phone for $40? - [https://www.amazon.com/Raspberry-Bluetooth-Expansion-Compatible-DataTransfer/dp/B076CPX4NN?th=1]
*LED chip - $2 - [https://www.aliexpress.com/item/4000252682538.html?src=google&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=1582410664&albag=59754279756&trgt=743612850714&crea=en4000252682538&netw=u&device=c&gclid=EAIaIQobChMIh9Wo9LC55gIVRNbACh3sGw9REAQYAiABEgI9YvD_BwE&gclsrc=aw.ds]
*LED chip - $2 - [https://www.aliexpress.com/item/4000252682538.html?src=google&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=1582410664&albag=59754279756&trgt=743612850714&crea=en4000252682538&netw=u&device=c&gclid=EAIaIQobChMIh9Wo9LC55gIVRNbACh3sGw9REAQYAiABEgI9YvD_BwE&gclsrc=aw.ds]
*Lithium battery charger - [https://www.banggood.com/10pcs-6S-14A-22_2V-18650-Battery-Protection-Board-for-18650-Li-ion-Lithium-Battery-Cell-Charger-Protect-Module-PCB-BMS-p-1542693.html?rmmds=buy&cur_warehouse=CN]


=Day 1 - Printer=
=Day 1 - Printer=
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*Stripboard (NOT perfboard) - $1 - [https://www.ebay.com/itm/US-6x-Stripboard-Veroboard-Uncut-PCB-Platine-Single-Side-Circuit-Perf-Board-Tool/153603136748?hash=item23c375dcec:g:TFUAAOSwFVFdU3OS]
*Stripboard (NOT perfboard) - $1 - [https://www.ebay.com/itm/US-6x-Stripboard-Veroboard-Uncut-PCB-Platine-Single-Side-Circuit-Perf-Board-Tool/153603136748?hash=item23c375dcec:g:TFUAAOSwFVFdU3OS]
*Soldering iron - [https://www.harborfreight.com/30-watt-lightweight-soldering-iron-69060.html?cid=paid_google|||69060&utm_source=google&utm_medium=cpc&mkwid=s|pcrid|385373262877|pkw||pmt||pdv|c|slid||product|69060|&pgrid=80023504313&ptaid=pla-821978525165&pcid=6551111411&intent=&gclid=EAIaIQobChMI_sT6vLu35gIVD9vACh00sQvjEAQYAiABEgLMwPD_BwE] - $4
*Soldering iron - [https://www.harborfreight.com/30-watt-lightweight-soldering-iron-69060.html?cid=paid_google|||69060&utm_source=google&utm_medium=cpc&mkwid=s|pcrid|385373262877|pkw||pmt||pdv|c|slid||product|69060|&pgrid=80023504313&ptaid=pla-821978525165&pcid=6551111411&intent=&gclid=EAIaIQobChMI_sT6vLu35gIVD9vACh00sQvjEAQYAiABEgLMwPD_BwE] - $4
*Soldring iron from 40W heater element?
*Copper clad boards
*Copper clad boards
*Copper chloride etchant
*Copper chloride etchant
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*Rod holder - 1/4" bolt (from 3D printer) screwing into a 3D printed endcap for EMT - just requires a 6 mm nut and bolt. 18 cents, same parts as 3D printer bolts.
*Rod holder - 1/4" bolt (from 3D printer) screwing into a 3D printed endcap for EMT - just requires a 6 mm nut and bolt. 18 cents, same parts as 3D printer bolts.
*3/8" rebar push bar for holding rod. 25 cents/foot . [https://www.menards.com/main/building-materials/concrete-cement-masonry/rebar-remesh/3-8-x-20-rebar-grade-60-3/1831100/p-1444422797172.htm]
*3/8" rebar push bar for holding rod. 25 cents/foot . [https://www.menards.com/main/building-materials/concrete-cement-masonry/rebar-remesh/3-8-x-20-rebar-grade-60-3/1831100/p-1444422797172.htm]
=Spreadsheet=
https://docs.google.com/spreadsheets/d/1OOqqDsvEP2sL7xdTfUrtBirDCjk6aEAbBwyjZDt_-lk/edit#gid=1571230577

Latest revision as of 08:29, 7 January 2020

Final Spreadsheet

edit

Working Spreadsheet

edit

Tablet

  • Screen - 5" 800x480 - $32 [1]
  • 7" screen amazon - $45 - [2]
  • 7" screen - 1024x600 - $75 - [3]
  • 7" screen - $70 - with cables and 5v 2A power supply - [4]
  • 7" screen - Aliexpress - $38 - [5]
  • Pi - $55 - Pi 4 with 4 GB RAM [6]. Comparison of 3 to 4 - [7]
  • Pi camera - $9 for v1 [8] or '$25 for v2 [9] and [[10]]'
  • Stabilizer bearings - skateboard bearings
  • HDMI cable - $4 - [11]
  • Wireless camera module - $20 - [12]
  • You can get cheapo camera modules - [13]
  • Bluetooth and phone for $40? - [14]
  • LED chip - $2 - [15]
  • Lithium battery charger - [16]

Day 1 - Printer

  • Printer - $278 - [17]
  • Filament - hex key holder - people print them out for the next bunch
  • Filament - razor holder
  • Filament - small pliers with 8 mm shaft pivot.
  • Filament - motor coupler
  • 3D printed ground electrode clamp, butt end
  • 3D printed power panel
  • Plotter Attachment with set bolt (16 cents, 6 mm bolt)
  • 3D Printed etching bath
  • 3D printed small vial for etchant

Day 2 - CNC Mill and Plotter

  • 555 motor - $5 Jameco - [18]
  • motor coupler - $1.25 - [19]
  • 1 mm milling drilling bit - [20] - $1.50
  • Pen for plotter - [21] . Just use refills. $1. From [22].
  • Fabric marker for custom t-shirts

Day 3 - Electronics

  • Atmel 328 DIP28 - [23] - $2
  • Other components - see DIY Arduino. Crystal - $0.3 - [24],
  • $2.11 - USB to serial converter - [25]
  • Wires and resistors or capacitors -
  • Stripboard (NOT perfboard) - $1 - [26]
  • Soldering iron - [27] - $4
  • Copper clad boards
  • Copper chloride etchant

Day 4 - Battery Pack + Welder

  • [6] 18650 battery pack - 24v nominal - $4 ea - [28] - $3 ea [29]
  • Rectifier - $1.51 - 15A - [30]
  • Transistor - 2 at $2 each - $4 -
  • Heatsink - 2 at $1.2 each - $4 - [31]
  • Heat sink fan - $1.4 - [32]
  • m5x10 set screws - 60 cents for 12 - [33]
  • 6 ga wire - 60 cents per foot - [34] - need 6' per welder - or $4 -
  • Rod holder - with 3D printed insulation and ground wire clamp, and 3D printed ground electrode clamp
  • Rod holder structure = bolt + EMT + internal rod. 1/2" EMT - 35 cents/foot. [35]
  • Rod holder - 1/4" bolt (from 3D printer) screwing into a 3D printed endcap for EMT - just requires a 6 mm nut and bolt. 18 cents, same parts as 3D printer bolts.
  • 3/8" rebar push bar for holding rod. 25 cents/foot . [36]
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