Everything you need to order in the first two days, organized by supplier. Place these orders simultaneously — shipping times vary and you need everything by end of Week 1.
Order 1: Pacific Steel (Local Pickup / Delivery) — ~$170-$310
Call or visit. Bring this list. Ask for cut-to-size service and stretch-leveled sheet.
| Item | Size | Qty |
|---|
| HR Sheet A1011 | 16ga, 48x96” | 1 sheet |
| HR Sheet A1011 | 12ga, cut to 24x48” | 1 piece |
| Square Tube A500B | 1”x1”x.120 wall, 10ft | 1 stick |
| Square Tube A500B | 1.5”x1.5”x.120 wall, 6ft | 1 stick |
| HR Flat Bar | 1”x1/8”, 6ft | 1 piece |
| HR Flat Bar | 1.5”x3/16”, 4ft | 1 piece |
| Structural Angle | 1”x1”x1/8”, 6ft | 1 piece |
| Structural Angle | 1.5”x1.5”x1/8”, 4ft | 1 piece |
| C-1018 Cold-Drawn Round | 1/2” dia, 2ft | 1 piece |
| C-1018 Cold-Drawn Round | 3/8” dia, 2ft | 1 piece |
| 5052 Aluminum Sheet | 1/8”, 48x96” | 1 sheet |
| 6061 Aluminum Plate | 1/4”, cut to 36x48” | 1 piece |
| 6061 Square Tube | 1”x1”x.125 wall, 8ft | 1 stick |
| 6061 Aluminum Angle | 1”x1”x1/8”, 4ft | 1 piece |
Tell them: “I need the sheet stretch-leveled if possible — it’s going on a laser cutter.”
Order 2: Amazon — Electronics & Computing — ~$500-$700
| Item | Qty | Search Term / ASIN |
|---|
| Raspberry Pi 5 (8GB) | 1 | ”Raspberry Pi 5 8GB” |
| Pi 5 active cooler | 1 | ”Raspberry Pi 5 active cooler” |
| MicroSD 128GB A2 | 1 | ”Samsung EVO Plus 128GB” |
| Google Coral USB Accelerator | 1 | ”Google Coral USB TPU” |
| Arduino Mega 2560 (clone OK) | 2 | ”Arduino Mega 2560 R3” |
| PCA9685 16-ch servo driver | 4 | ”PCA9685 servo driver board” |
| Pi Camera Module v3 | 2 | ”Raspberry Pi Camera Module 3” |
| 7” touchscreen (Pi) | 1 | ”Raspberry Pi 7 inch touchscreen” |
| FlySky FS-i6X TX + FS-iA6B RX | 1 | ”FlySky FS-i6X 6ch” |
| E-stop mushroom button (NC) | 1 | ”22mm mushroom emergency stop NC” |
| IMU MPU-6050 breakout | 1 | ”GY-521 MPU6050” |
| HC-SR04 ultrasonic sensor | 4 | ”HC-SR04 ultrasonic 5-pack” |
| ReSpeaker 4-mic array (Pi HAT) | 1 | ”ReSpeaker 4-mic array” |
| 3W speaker | 1 | ”3 inch 4 ohm 3W speaker” |
| I2S audio amplifier | 1 | ”MAX98357A I2S amplifier” |
| BTS7960 motor driver | 2 | ”BTS7960 43A motor driver” |
| Buck converter 24V→12V 10A | 1 | ”DC-DC buck converter 24V to 12V 10A” |
| Buck converter 24V→6V 15A | 1 | ”DC-DC buck converter adjustable 15A” |
| Buck converter 24V→5V 5A | 1 | ”DC-DC buck converter 24V to 5V USB” |
| Blade fuse panel (6-circuit) | 1 | ”ATC blade fuse box 6 way” |
Order 3: Amazon — Servos — ~$480-$560
| Item | Qty | Search Term |
|---|
| Hitec HS-645MG servo | 8 | ”Hitec HS-645MG” (or buy from ServoCity) |
| Hitec HS-485HB servo | 5 | ”Hitec HS-485HB” (or ServoCity) |
| SG90 micro servo (10-pack) | 1 | ”SG90 micro servo 10 pack” |
| MG996R servo (6-pack) | 1 | ”MG996R servo 6 pack metal gear” |
Order 4: AliExpress — High-Torque Servos — ~$360
| Item | Qty | Search Term | Notes |
|---|
| ASME-04B 380KG servo | 6 | ”ASME-04B 380kg servo” | Order EARLY — AliExpress shipping takes 2-4 weeks |
These ship from China. Order Day 1. They should arrive by Week 3-4, in time for arm assembly in Week 6.
Order 5: Amazon — Wiring & Connectors — ~$95-$120
| Item | Qty | Search Term |
|---|
| Deutsch DT connector kit (assorted) | 1 | ”Deutsch DT connector kit assorted” |
| JST-XH connector kit + crimps | 1 | ”JST XH connector kit male female” |
| Silicone wire kit (14/18/22/26 AWG) | 1 | ”silicone wire kit assorted gauge” |
| Heat shrink tubing assortment | 1 | ”heat shrink tubing assortment 560pc” |
| Zip ties 500-pack (assorted) | 1 | ”zip ties assorted sizes 500” |
| Cable loom/wire sleeve (1/4”+1/2”) | 20ft | ”split wire loom tubing assorted” |
| USB cables (short, assorted types) | 4 | ”USB A to C short cable 6 inch” |
Order 6: McMaster-Carr / Bolt Depot — Fasteners — ~$80-$120
| Item | Source | Notes |
|---|
| SS socket head cap screw assortment (M3/M4/M5) | McMaster or Bolt Depot | Get 50+ of each size, multiple lengths |
| Zinc hex bolt assortment (M3-M8) | Bolt Depot (cheaper for bulk) | Internal, don’t need SS |
| Nylon lock nut assortment (M3-M8) | Bolt Depot | Match bolt sizes |
| Washer assortment (flat + split lock, M3-M8) | Bolt Depot | Get 100+ total |
| M3 standoffs (assorted lengths) | Amazon or McMaster | PCB mounting |
| Loctite 242 blue thread locker | Amazon | One bottle lasts the whole build |
| 608ZZ + 6000ZZ bearing assortment | Amazon | 10+ bearings |
Order 7: Amazon / Creality Store — Filament — ~$400-$600
| Item | Qty | Source | Notes |
|---|
| CF-PETG 1.75mm 1kg (black or dark gray) | 5 | Amazon | Structural. Need hardened nozzle (K1 Max has one). |
| PLA 1.75mm 1kg (white/gray base for painting) | 10 | Amazon | Cosmetic shells. Cheapest filament — buy in bulk. |
| Multi-color PLA (CFS-C compatible) | 4 | Creality Store | Gold, silver, black, accent color |
| PETG 1.75mm 1kg (clear/translucent + solid) | 5 | Amazon | Semi-structural |
| TPU 95A 1.75mm 0.5kg | 2 | Amazon | Gaskets, pads, dampeners |
Order 8: Amazon — Misc Mechanical — ~$100-$150
| Item | Qty | Search Term |
|---|
| 16” heavy-duty lazy susan bearing | 1 | ”16 inch lazy susan bearing heavy duty” |
| Slip ring 12-wire 10A | 1 | ”slip ring 12 wire 10A” |
| 12V linear actuator 6” stroke (150N+) | 3 | ”12V linear actuator 6 inch stroke” |
| 89mm aluminum tube (for eyes) | 2 ft | McMaster or Online Metals |
| LED NeoPixel ring (small, 16-24 LED) | 2 | ”NeoPixel ring 24 LED” |
| Braided fishing line 80lb test | 1 spool | ”PowerPro 80lb braided line” |
| Small extension springs assortment | 1 pack | ”extension spring assortment small” |
Order 9: Amazon — Safety Gear — ~$45-$80
Skip anything you already own from your welding setup.
| Item | Qty | Notes |
|---|
| Half-face respirator + P100/OV cartridges | 1 | MANDATORY for painting + 2K clear coat |
| Safety glasses (impact-rated, 2-pack) | 1 | Grinding, cutting, drilling |
| Hearing protection (over-ear) | 1 | Angle grinder, CNC operations |
Week 1 Order Summary
| Supplier | Estimated Cost | Shipping |
|---|
| Pacific Steel | $170-$310 | Local pickup or delivery |
| Amazon (electronics) | $500-$700 | Prime 1-2 days |
| Amazon (servos) | $480-$560 | Prime 1-2 days |
| AliExpress (ASME servos) | $360 | 2-4 weeks — ORDER FIRST |
| Amazon (wiring) | $95-$120 | Prime 1-2 days |
| McMaster / Bolt Depot | $80-$120 | 1-3 days |
| Amazon / Creality (filament) | $400-$600 | Prime 1-2 days / 3-5 days Creality |
| Amazon (misc mechanical) | $100-$150 | Prime 1-2 days |
| Amazon (safety) | $45-$80 | Prime 1-2 days |
| WEEK 1 TOTAL | $2,230-$3,000 | |
This is the big spend. After Week 1, your total spend through Month 2 is only ~$200-$500 more (paint supplies + consumables). Month 3 Tier 3 components are ordered as needed each week.