WEEK 12
Weatherproofing, Final Paint & Full Calibration
Everything works — now make it bulletproof and beautiful. Full Tier 3 J5 complete.
Est. Hours
40h
Est. Spend
$215
Tools Required
spray paintrespiratorsandpaper (80-2000 grit)2K automotive clear coatmultimeterRaptorX scannerconformal coat
CAD FILES
full_assembly_tier3_final.sldasm
Goal
The finish line. Everything works — now make it bulletproof and beautiful. This is the “last 10%” that other J5 builders say takes as long as the first 90%. Give it the full week.
Day-by-Day Tasks
| Day | Task | Method | Notes |
|---|---|---|---|
| 1 | Conformal coat all PCBs | Spray conformal coating (Amazon ~$20) | Protect electronics from moisture. Remove from robot → spray → let dry 24hr → reinstall. |
| 1-2 | Cast silicone gaskets | 3D-print molds, pour silicone (Amazon ~$25) | Gaskets for every panel seam, electronics bay lid, battery compartment. |
| 2 | Install IP-rated enclosures for exposed electronics | Amazon ~$40 | Any boards not inside the main chassis get their own sealed box. |
| 2-3 | Swap remaining interior bolts to stainless steel | McMaster ~$30 | Exterior was already SS from Tier 2. Now interior matches. Full corrosion resistance. |
| 3-5 | Full automotive paint job | Strip → sand → primer → base → metallic → chrome accents → 2K clear coat (~$100) | Takes 3 days minimum — proper paint needs cure time between coats. Use multi-color 3D-printed parts as masking guides. Wear respirator for 2K clear. |
| 5-6 | Final assembly — reinstall all painted/weatherproofed components | Clean bolt-up | Take your time. Thread locker on every critical bolt. Torque to spec. |
| 6 | Full calibration | Python script, servo config | Recalibrate all 39+ servos with new arm structure + pneumatic neck. Update config file. |
| 6-7 | Full system test | All systems simultaneously | Voice, vision, drive, arms, tracks, stairs, 3D scanning, object grasping, navigation. Run through every capability. |
| 7 | Final safety audit | Checklist | E-stop, pinch points, battery cutoff, RC override, obstacle avoidance, stall detection, pneumatic pressure relief, weather seals. |
| 7 | RaptorX: Final full-body scan | RaptorX, full-color | Complete digital twin of finished Tier 3 J5. Archive this — it’s your reference for all future maintenance and modifications. |
Skills Practiced
Automotive painting (with 2K clear coat), weatherproofing, silicone casting, final calibration, comprehensive system testing.
Print Queue
Complete. All 200-310 hours of printing done across 10 weeks.