January 2020 STEAM Camp Kits BOM: Difference between revisions
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*motor coupler - $1.25 - [https://www.amazon.com/Befenybay-3-17mm-Coupling-Connector-Screws/dp/B07XX5T7HM/ref=asc_df_B07XX5T7HM/?tag=hyprod-20&linkCode=df0&hvadid=385339487732&hvpos=1o1&hvnetw=g&hvrand=10003251106968841619&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-842165607577&psc=1&tag=&ref=&adgrpid=78829232136&hvpone=&hvptwo=&hvadid=385339487732&hvpos=1o1&hvnetw=g&hvrand=10003251106968841619&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-842165607577] | *motor coupler - $1.25 - [https://www.amazon.com/Befenybay-3-17mm-Coupling-Connector-Screws/dp/B07XX5T7HM/ref=asc_df_B07XX5T7HM/?tag=hyprod-20&linkCode=df0&hvadid=385339487732&hvpos=1o1&hvnetw=g&hvrand=10003251106968841619&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-842165607577&psc=1&tag=&ref=&adgrpid=78829232136&hvpone=&hvptwo=&hvadid=385339487732&hvpos=1o1&hvnetw=g&hvrand=10003251106968841619&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-842165607577] | ||
*1 mm milling drilling bit - [https://smile.amazon.com/HOZLY-3-175X1-0X7MM-Precision-Machining-10/dp/B073TXGGKX/ref=cm_cr_arp_d_product_top?ie=UTF8] - $1.50 | *1 mm milling drilling bit - [https://smile.amazon.com/HOZLY-3-175X1-0X7MM-Precision-Machining-10/dp/B073TXGGKX/ref=cm_cr_arp_d_product_top?ie=UTF8] - $1.50 | ||
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=Day 3 - Electronics= | =Day 3 - Electronics= | ||
Revision as of 13:59, 15 December 2019
Shipping - add about $20 per kit for shipping
Tablet
- Screen - 5" 800x480 - $32 [1]
- 7" screen - 1024x600 - $75 - [2]
- 7" screen - $70 - with cables and 5v 2A power supply - [3]
- 7" screen - Aliexpress - $38 - [4]
- Pi - $55 - Pi 4 with 4 GB RAM [5]. Comparison of 3 to 4 - [6]
- Pi camera - $9 for v1 [7] or '$25 for v2 [8] and [[9]]'
- Stabilizer bearings - skateboard bearings
- HDMI cable - $4 - [10]
- Wireless camera module - $20 - [11]
- You can get cheapo camera modules - [12]
Day 1 - Printer
- Printer - $278 - [13]
- 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
Day 2 - CNC Mill
Day 3 - Electronics
- Atmel 328 DIP28 - [17] - $2
- Other components - see DIY Arduino. Crystal - $0.3 - [18],
- $2.11 - USB to serial converter - [19]
- Stripboard (NOT perfboard) - $1 - [20]
- Soldering iron - [21] - $4
- Soldring iron from 40W heater element?
Day 4 - Battery Pack + Welder
- [6] 18650 battery pack - 24v nominal - $4 ea - [22] - $3 ea [23]
- Rectifier - $1.51 - 15A - [24]
- Transistor - 2 at $2 each - $4 -
- Heatsink - 2 at $2 each - $4 - [25]
- m5x10 set screws - 60 cents for 12 - [26]
- 4 ga wire - 60 cents per foot - [27] - need 6' per welder - or $4 -
- Rod holder - with 3D printed insulation and ground wire clamp, and 3D printed ground electrode clamp