HULL/20 Spaceways

The drawing package

The saucer as a set of production drawings: the frame, the electrical system with its strip plan and harness, and the circuit boards. The Engineer's edition tells the story of the build; these sheets are the record you would build it again from. Everything here is as built in October 2026 unless a sheet says otherwise.

Drawing list
Dwg no.TitleSheetsRevStatus
HULL-20-UFO-001BUILD RECORD, ENGINEER'S EDITION17ERELEASED
HULL-20-UFO-010FRAME, 2020 EXTRUSION4ARELEASED
HULL-20-UFO-027SKIN, FLOATING PANELS, 20274DIN WORK
HULL-20-UFO-030ELECTRICAL, LEDS AND WIRING5ARELEASED
HULL-20-UFO-040CIRCUIT BOARDS: UFO CONTROLLER, BOARDING PASS, SAUCER BADGE8BRELEASED

Drawing HULL-20-UFO-030 sheet 1: one-line power diagram and power budget

Power budget
LineSegmentPxPer px, full whiteFull whiteAt 42 % capFuseFeed
1RIM440RGB 60 mA26.4 A11.1 AF1 15 ARING BUS A, TAPS AT FACES 1, 3, 5, 7
2COCKPIT LIP115RGBW 80 mA9.2 A3.9 AF2 10 ATOP JUNCTION
3SPOKES S1 TO S8480RGB 60 mA28.8 A12.1 AF3 15 ASPOKE STAR, CENTRE
3IRIS241RGB 60 mA14.5 A6.1 AF4 10 AIRIS PADS, OUTER RING AND CENTRE
4PORTHOLES P1 TO P8, EYES130RGB 60 mA7.8 A3.3 AF5 10 ATOP JUNCTION
—CONTROLLER————F6 3 ABOARD B, USB-C LEAD
TOTAL1,40686.7 A36.4 APS1 60 AFIRMWARE LIMIT 30 A
Running current, modelled
ConditionCapSupply current
UFO-25 SHOW, IDLE, AVERAGE42 %8.7 A
HOLIDAY LIVERY, IDLE, AVERAGE42 %9.3 A
HOLIDAY EVENTS, PEAK: SNOW 10.5, SLEIGH 10.7, GIFT 14.1, GREETING 16.8, MAIL 17.242 %17.2 A MAX
ANY EVENT, PEAK60 % (NETWORK MAX)24.6 A MAX
ABDUCTION FLASH FRAMEANY30 A (LIMITER)
Revisions
ZoneRevDescriptionDateApproved
ALLAFIRST ISSUE: AS-BUILT RECORD OF THE 2026 WIRING. 1,406 PX (SPOKES 60 EACH). FOG RELAY AND BEAM POD NOT FITTED2026-11-01R. DIXON

Notes

Unless otherwise specified:

  1. As-built record of the 2026 wiring: the wiring diagram (2026-10-14), the controller stack (2026-10-25) and the firmware's segment table (UfoShow.h, 60 px a spoke).
  2. All strip power runs from PS1 through F1 to F5. The controller carries data only, and takes its own 5 V through F6.
  3. 1000 µF across 5 V and 0 V at each strip start (line 1, cockpit, S1, iris, top junction), plus C3 on board B: 6 in all.
  4. Full white at the 42 % cap keeps every line under its fuse. The firmware scales every frame to keep the supply under 30 A.
  5. Running currents are the show's frameAmps model (20 mA per channel at 255), not metered. Meter the supply output during an abduction on the ground: 30 A max.
  6. Last pixel of each line, full white at 42 %: 4.6 V min. Lower, add a tap from ring bus A.
  7. Mains is the cord and PS1's input only. GFCI outlet. PS1 earth to the cord earth. Glands on the downward face of the box.
  8. Seal every outdoor joint with adhesive-lined heat shrink.
One-line power diagramMains through the cord to the 5 V 60 A supply, then six fuses: rim ring bus, cockpit, spoke star, iris, top junction and the controller. The 12 V supply and beam pod are not fitted. MAINS IN 120 V AC GFCI OUTLET DRIP LOOP 3 CORD, GLAND G1 PS1 5 V DC 60 A, 350 W ENCLOSED SUPPLY TRIM 5.1 V L N PE PE TO CORD EARTH +5 V BUS 0 V BUS (GND), ONE BUS FOR EVERY RETURN F1 15 A 2 × 14 AWG W1, W2 RING BUS A, 4 TAPS LINE 1, RIM, 440 PX FACES 1, 3, 5, 7 + 1000 µF F2 10 A 2 × 14 AWG W7 TOP JUNCTION LINE 2, COCKPIT LIP 115 RGBW + 1000 µF F3 15 A 2 × 14 AWG W8 SPOKE STAR, CENTRE LINE 3, S1 TO S8 480 PX + 1000 µF F4 10 A 2 × 14 AWG W9 IRIS DISC PADS LINE 3, IRIS 241 PX + 1000 µF F5 10 A 2 × 14 AWG W10 TOP JUNCTION LINE 4, P1 TO P8, EYES 128 + 2 PX + 1000 µF F6 3 A 2 × 20 AWG W13 CONTROLLER USB-C POWER LEAD BOARD B PS2 12 V, F7 7.5 A, BEAM POD MOSFET MODULE, GLAND G6 NOT FITTED (REMOVED 2026-10-25) FIRMWARE LIMIT 30 A (FRAME SCALED BEFORE IT IS SENT). DEFAULT CAP 42 %. SEAL EVERY OUTDOOR JOINT WITH ADHESIVE-LINED HEAT SHRINK.
ONE-LINE POWER DIAGRAM
Unless otherwise specified
DC VOLTAGES TO 0 V BUS
WIRE: STRANDED COPPER, AWG
FUSES: ATC BLADE, INLINE
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ELECTRICAL DIAGRAM
Status
RELEASED
Units
AS NOTED
Projection
THIRD ANGLE
PROJECTION
Title
ELECTRICAL, ONE-LINE AND POWER
Size
B
Scale
NONE
Sheet
1 OF 5
Dwg no.
HULL-20-UFO-030
Rev
A

Drawing HULL-20-UFO-030 sheet 2: controller stack, assembly

view=exploded-iso ; drawing=HULL-20-UFO-030-A ; scale=none (isometric)1411121086543121397
EXPLODED ISOMETRIC, CONTROLLER STACKSCALE NONE
Parts list, controller stack, keyed to the exploded view
Find no.QtyPartNotes
11BOX PLATESIZE TBD (MEASURE); DRAWN AS A PHANTOM SIZE ONLY
28M3 NYLON SCREWPAN HEAD, FROM UNDER THE PLATE
34M3 NYLON STANDOFF 10BOARD B (STACK PAGE)
44M3 NYLON STANDOFF 35BOARD A, CORNERS OUTSIDE B (STACK PAGE)
51BOARD B, PROTOTYPE BOARDR1-R4 330 STANDING, C3; STRIP + POWER WIRES SOLDERED IN
64R1-R4 330 ΩDIN0207 STANDING
71C3 ELECTROLYTIC100 µF OR BIGGER
81BOARD A, PROTOTYPE BOARD, 30 ROWSBREADBOARD LAYOUT, RAILS BOTH SIDES
9215-PIN FEMALE HEADERCOLUMNS D AND H, ROWS 1-15
101DIP-14 SOCKETU1, ROWS 17-23
111U1 74AHCT125DIP-14
121C1 0.1 µFCERAMIC DISC
131ESP32-S3 MODULE BOARD, NANO FORM FACTORON THE HEADERS, POWERED BY ITS OWN USB-C (LEAD FROM B ROWS 1/3)
144M3 NYLON SCREWPAN HEAD, THROUGH A INTO ITS STANDOFFS
-4M3 NYLON SCREWPAN HEAD, THROUGH B INTO ITS STANDOFFS

Notes

Unless otherwise specified:

  1. Two stacked prototype boards. Every wire is soldered straight into its hole: no screw terminals. Hole-by-hole build in the controller stack guide.
  2. U1 stays out of its socket and A1 off its headers until the bench test: no continuity between +5 V and 0 V on either board.
  3. The stack sits in the IP67 box on the two box rails over the core ring, under the deck (drawing 010). Box plate size to be measured: drawn in phantom, SIZE TBD.
Unless otherwise specified
DC VOLTAGES TO 0 V BUS
WIRE: STRANDED COPPER, AWG
FUSES: ATC BLADE, INLINE
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
RELEASED
Units
AS NOTED
Projection
THIRD ANGLE
PROJECTION
Title
CONTROLLER STACK, ASSEMBLY
Size
B
Scale
NONE
Sheet
2 OF 5
Dwg no.
HULL-20-UFO-030
Rev
A

Drawing HULL-20-UFO-030 sheet 3: controller schematic

Controller schematicAn ESP32-S3 board (Nano form factor) drives four data lines through a 74AHCT125 level shifter (3.3 V in, 5 V out) and 330 ohm series resistors to connectors J1 to J4. Power from fuse F6. Fog relay and beam pod MOSFET not fitted. +5 V 0 V +5 V 0 V J5 FROM F6, W13 + C3 100 µF 10 V A1 ESP32-S3 BOARD, NANO FORM USB-C VBUS USB-C LEAD GND U1 PWR 14 7 C1 0.1 µF AT U1 D2 GPIO5 1 EN 2 3 1 R1 330 Ω DATA GND J1 LINE 1, RIM D3 GPIO6 1 EN 5 6 4 R2 330 Ω DATA GND J2 LINE 2, COCKPIT D4 GPIO7 1 EN 9 8 10 R3 330 Ω DATA GND J3 LINE 3, SPOKES, IRIS D5 GPIO8 1 EN 12 11 13 R4 330 Ω DATA GND J4 LINE 4, PORTS, EYES OE TO 0 V NOT FITTED (REMOVED 2026-10-25): U2 74AHCT125, K1 RELAY (FOG TRIGGER) Q1 MOSFET MODULE (BEAM POD, 12 V) R5, R6 10 kΩ PULL-DOWNS ON D6, D7 D6 GPIO9 AND D7 GPIO10 UNUSED NOTES: 1. EVERY DATA RUN LEAVES BOARD B WITH ITS OWN 0 V WIRE BESIDE IT. 2. NEVER PUT 5 V ON VIN; THE NANO TAKES 5 V THROUGH ITS USB-C PORT. 3. KEEP R1 TO R4 AT U1'S OUTPUTS. 4. STRIP POWER DOES NOT PASS THROUGH THE CONTROLLER (SHEET 1).
SCHEMATIC, CONTROLLER (IEC 60617)
U1 74AHCT125 pins
PinNameNet
11OE0 V
21AA1 D2, GPIO5
31YR1, LINE 1
42OE0 V
52AA1 D3, GPIO6
62YR2, LINE 2
7GND0 V
83YR3, LINE 3
93AA1 D4, GPIO7
103OE0 V
114YR4, LINE 4
124AA1 D5, GPIO8
134OE0 V
14VCC+5 V

Notes

  1. Level shift: the ESP32 drives 3.3 V logic; a WS2812B at 5 V wants 0.7 × VDD = 3.5 V for a high. The 74AHCT125 has TTL input thresholds and a full 5 V output swing.
  2. The 330 Ω series resistors take the ringing off the edges on the way down the cables.
  3. Four RMT channels send all four lines at once. Line 3 (721 px, 21.6 ms) sets the frame time.
  4. Bench test passed 2026-10-25: test firmware lights each line in its own colour (rim green, cockpit blue, spokes purple, portholes cyan).
Unless otherwise specified
DC VOLTAGES TO 0 V BUS
WIRE: STRANDED COPPER, AWG
FUSES: ATC BLADE, INLINE
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
SCHEMATIC
Status
RELEASED
Units
AS NOTED
Projection
THIRD ANGLE
PROJECTION
Title
CONTROLLER, SCHEMATIC
Size
B
Scale
NONE
Sheet
3 OF 5
Dwg no.
HULL-20-UFO-030
Rev
A

Drawing HULL-20-UFO-030 sheet 4: LED strip plan and index map

LED strip planTop: the rim line runs clockwise from the aft flat's left corner, 55 pixels a face, with power taps at faces 1, 3, 5 and 7; the cockpit lip and the eight portholes come from the top junction. Belly: eight spokes in one serpentine data line, then the iris. 1 TAP 2 3 TAP 4 5 TAP 6 7 TAP 8 LINE 1 IN, J1 (W14) LINE 1: 440 PX, 55 PER FACE, CLOCKWISE FROM THE AFT FLAT'S LEFT CORNER LINE 2: COCKPIT LIP 115 RGBW TJ P1 P2 P3 P4 P5 P6 P7 P8 LINE 4: TJ → P1 … P8 (16 PX EACH) → EYES (2 PX) S1 S2 S3 S4 S5 S6 S7 S8 IRIS LINE 3: S1 → S8 SERPENTINE (60 PX EACH) → IRIS 241 BELLY, SEEN FROM ABOVE (X-RAY). JUMPERS DASHED LINE 3 IN AT S1, J3 (W16); F3 STAR TOP, SEEN FROM ABOVE. AFT (HOUSE SIDE) AT THE TOP
LED STRIP PLAN
LED index map, as the firmware addresses it
LinePinIndexSegmentPhysical orderStrip
1D2, GPIO50 TO 439RIMCLOCKWISE FROM THE AFT FLAT'S LEFT CORNER, 55 PER FACE. FIRMWARE SHIFTS IT 1/16 TURN (RIM_A0) SO 0 IS MID-AFTRGB REEL 1 (300) THEN REEL 2 (140)
2D3, GPIO60 TO 114COCKPIT LIPONCE ROUND THE 24 IN DOME LIP FROM THE TOP JUNCTIONRGBW, 4 BYTES A PIXEL
3D4, GPIO70 TO 479SPOKESS1 0 TO 59 CENTRE TO RIM, S2 60 TO 119 RIM TO CENTRE, AND SO ON: S1, S3, S5, S7 OUTWARD, S2, S4, S6, S8 INWARDRGB REEL 3 (S1 TO S5), REEL 4 (S6 TO S8)
3480 TO 720IRISOUTER RING FIRST: RINGS OF 60, 48, 40, 32, 24, 16, 12, 8, 1 (FIRMWARE REMAPS TO CENTRE FIRST)241-PX DISC
4D5, GPIO80 TO 127PORTHOLESP1 TO P8, 16 EACH, CHAINED FROM THE TOP JUNCTION16-PX RINGS, 8 OF 10
4128 TO 129EYESTHE PILOT'S TWO EYE PIXELS, END OF THE CHAIN—

Notes

  1. Line 1 runs uncut through each corner gap between the rim channels. Reel 1 joins reel 2 at their factory connectors on face 6.
  2. Spokes are 60 px each as built (one metre of 60/m strip), not the 56 of the first plan.
  3. Belly jumpers, 22 AWG 3-core (5 V, 0 V, data): at the rim S1 to S2, S3 to S4, S5 to S6, S7 to S8, about 33 in; at the hub S2 to S3, S4 to S5, S6 to S7, about 5 in; S8 to the iris, about 7 in.
  4. Porthole P1's place on the ring is as wired; the firmware's PORT_A0 sets where the show starts.
  5. Count from the input end, the end the strip's arrows point away from. Cut through the middle of the copper pads. Seal every cut end.
Unless otherwise specified
DC VOLTAGES TO 0 V BUS
WIRE: STRANDED COPPER, AWG
FUSES: ATC BLADE, INLINE
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
WIRING DIAGRAM
Status
RELEASED
Units
AS NOTED
Projection
THIRD ANGLE
PROJECTION
Title
LED STRIP PLAN
Size
B
Scale
NONE
Sheet
4 OF 5
Dwg no.
HULL-20-UFO-030
Rev
A

Drawing HULL-20-UFO-030 sheet 5: cable schedule and solder points

Cable schedule
WireFromToCond.GaugeColourLengthNotes
W1F1RING BUS A START, AFT-LEFT CORNER214 AWGRED / BLACK1.5 M
W2RING BUS AROUND THE INSIDE OF THE RIM214 AWGRED / BLACK7.5 M
W3 TO W6RING BUS ALINE 1 TAPS, FACES 1, 3, 5, 72 EACH18 AWGRED / BLACKSHORTPART OF THE 8 M OF 18 AWG
W7F2TOP JUNCTION (COCKPIT)214 AWGRED / BLACK1.5 MUP THROUGH A DECK GLAND
W8F3SPOKE STAR, CENTRE214 AWGRED / BLACKSHORTSTAR IS OVER THE BEAM PORT
W9F4IRIS 5 V / 0 V PADS214 AWGRED / BLACK1.5 MOUTER RING AND CENTRE
W10F5TOP JUNCTION214 AWGRED / BLACK1.5 MUP THROUGH A DECK GLAND
W11, W12TOP JUNCTIONP1 AND P5 POWER2 EACH18 AWGRED / BLACKSHORT
W13F6BOARD B, ROW 1 a (+5 V), ROW 3 a (0 V)220 AWGRED / BLACKIN BOXTHEN THE USB-C LEAD TO A1
W14J1LINE 1 IN, AFT-LEFT CORNER322 AWG3-COREPART OF 6 MDATA, 0 V, SPARE
W15J2LINE 2 IN, TOP JUNCTION322 AWG3-COREPART OF 6 MDATA, 0 V, SPARE
W16J3LINE 3 IN, S1 AT THE CENTRE322 AWG3-COREPART OF 6 MDATA, 0 V, SPARE
W17J4LINE 4 IN, TOP JUNCTION TO P1322 AWG3-COREPART OF 6 MDATA, 0 V, SPARE
W18 TO W21S1, S3, S5, S7 RIM ENDS2, S4, S6, S8 RIM END322 AWG3-CORE≈ 33 IN EACH5 V, 0 V, DATA
W22 TO W24S2, S4, S6 CENTRE ENDS3, S5, S7 CENTRE END322 AWG3-CORE≈ 5 IN EACH5 V, 0 V, DATA
W25S8 CENTRE ENDIRIS DATA IN322 AWG3-CORE≈ 7 IN
W26P1P2 … P8, THEN THE EYES322 AWG3-CORE≈ 6 MCHAIN
W27MAINS CORDPS1 L, N, PE3CORD—TO OUTLETGFCI, DRIP LOOP
Solder points, board B
PointSignalBoard B holeOther end
J5+5 V INROW 1, HOLE aF6 (W13)
J50 V INROW 3, HOLE a0 V BUS (W13)
J1DATAROW 1, HOLE jLINE 1 DATA IN
J10 VROW 3, HOLE jLINE 1 0 V
J2DATAROW 5, HOLE jLINE 2 DATA IN
J20 VROW 7, HOLE jLINE 2 0 V
J3DATAROW 9, HOLE jLINE 3 DATA IN
J30 VROW 11, HOLE jLINE 3 0 V
J4DATAROW 13, HOLE jLINE 4 DATA IN
J40 VROW 15, HOLE jLINE 4 0 V
Strip input end, every run
WireSignal
1+5 V, FROM ITS FUSED FEED
20 V
3DATA, FROM J1 TO J4 OR THE JUMPER BEFORE IT

Notes

  1. Wire totals with slack: about 20 m of 14 AWG pair, 8 m of 18 AWG pair, 20 m of 22 AWG 3-core (buy 100 ft).
  2. Every data run leaves board B with its own 0 V wire beside it; that 0 V is a reference, not the strip's power.
  3. Leave 2 in of slack at each jumper end. Solder, then seal.
Unless otherwise specified
DC VOLTAGES TO 0 V BUS
WIRE: STRANDED COPPER, AWG
FUSES: ATC BLADE, INLINE
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
WIRING LIST
Status
RELEASED
Units
AS NOTED
Projection
THIRD ANGLE
PROJECTION
Title
CABLE SCHEDULE AND SOLDER POINTS
Size
B
Scale
NONE
Sheet
5 OF 5
Dwg no.
HULL-20-UFO-030
Rev
A

Drawing HULL-20-UFO-010 sheet 1: frame assembly and parts list

view=exploded-iso ; drawing=HULL-20-UFO-010 ; scale=none (isometric)CEDKBAHPEFBRLXFT
EXPLODED ISOMETRIC, FRAMESCALE NONE
Revisions
ZoneRevDescriptionDateApproved
ALLAFIRST ISSUE: AS-BUILT RECORD OF THE 2020 FRAME, CUT 2026-10-17, DRILLED 2026-10-18. G RISER POSTS CUT, NOT FITTED: THE DOME BOLTS TO THE DECK2026-11-01R. DIXON
Parts list
FindQtyDescriptionLengthFromWhere
A8RIM, 2020900 [35⅜]BARS 1 TO 8OCTAGON; OUTER SIDE 916.6 [36.1]
B8SPOKE, 2020900 [35⅜]BARS 9 TO 16RIM MID-SIDE TO CORE RING, FLUSH WITH THE RIM TOP
C8HUB RING, 2020300 [11¾]OFFCUTS 1 TO 8OCTAGON ON THE POSTS, 162 [6⅜] UP
D8CORE RING, 2020137.8 [5⅜]OFFCUTS 9 TO 16OCTAGON AT THE CENTRE, RIM LEVEL
E8HUB POST, 2020142 [5⅝]OFFCUTS 9 TO 16ON EACH SPOKE, UNDER THE HUB RING
F4PLATE LEG, 202090 [3½]BAR 18CORE RING D2, D4, D6, D8 DOWN TO THE CENTRE PLATE
G8RISER POST, 202095 [3¾]BARS 17, 18CUT, NOT FITTED, NOT SHOWN
H2BOX RAIL, 2020373 [14⅝]BAR 19ACROSS THE CORE RING TOP, 39.9 OFF CENTRE
K8PORTHOLE POST, 202060 [2⅜]BAR 18ON EACH SPOKE, 744 FROM CENTRE
L4LEG POST, 2020150 [5⅞]BARS 17, 20UNDER THE 4 LIFT SPOKES, 940 FROM CENTRE
X4LEG EXTENSION, 2020400 [15¾]BARS 17, 19, 20ON L, LANDED MODE
BR24BRACKET, 135°, FOR 2020, 60 × 16 × 6——J1, J6, J7
PE8PAD EYE, 316, M6——J12, TOP AND UNDER, B1, B3, B5, B7 AT 814
FT4FOOT, LEVELLING, M6, Ø50 SWIVEL PAD——INTO X (LANDED) OR L (ROOF)
148SCREW, FLAT HEAD, M5 × 35, 304, WITH NUT, NYLOCK, M5——2 PER BRACKET
236SCREW, SOCKET HEAD, M6 × 40, 304——J3, J4, J8, J10, J12
38SCREW, FLAT HEAD, M6 × 40, 304——J2, FLUSH UNDER THE RIM LEDS
412SCREW, BUTTON HEAD, M6 × 50, 304——J5 (8); J11 WITH NYLOCK (4)
512SCREW, BUTTON HEAD, M6 × 25, STAINLESS——J8 (4), J10 (8). J9 NOT BUILT
64STUD, GRUB, M6 × 30——L TO X, LANDED MODE

Notes

Unless otherwise specified:

  1. As built: every piece cut to this list, 20 bars of 1220 mm 2020 T-slot (slot 6), square cuts, 3 mm kerf.
  2. Rim octagon 2213 [87⅛] across flats, equal three ways; 2397 [94⅜] across points. Core ring about 373 across flats. H box rails 39.9 either side of centre, 373 long (supersedes the 50 / 333 of the first frame drawing).
  3. No sloped joints: flat rings, radial spokes and vertical posts, all at 90° or 135°. Legs drawn in landed mode: L, M6 × 30 grub stud, X and foot; roof mode is L and foot.
  4. G riser posts cut but not fitted: the dome lip bolts to the deck. Deck and centre plate as built in ¾ in plywood.
  5. Every M6: medium-strength threadlocker. Snug every joint in a step, check it, then tighten.
  6. Snag-proofing: deburr every cut end; round and tape the 16 outside corners of the rim and hub ring; cap the 48 M5 tails.
  7. Bare frame, extrusion and hardware, 26 to 29 lb.
Unless otherwise specified
DIMENSIONS IN MM [IN]
TOLERANCES: X ±1 X.X ±0.5
ANGLES ±0.5° AS BUILT
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
RELEASED
Units
MM [IN]
Projection
THIRD ANGLE
PROJECTION
Title
FRAME, 2020 EXTRUSION, ASSEMBLY
Size
B
Scale
AS SHOWN
Sheet
1 OF 4
Dwg no.
HULL-20-UFO-010
Rev
A

Drawing HULL-20-UFO-010 sheet 2: plan, elevation and joint schedule

view=frame-plan ; scale=1:10 ; units=mm (paper) ; drawing=HULL-20-UFO-010 ; source=frame-2020 (FRAME-2020, CUT-SHEET, DRILL-TAP, ASSEMBLY), MODES; checked against make_dxf.py 2213 ACROSS FLATS (87 1/8 in)764.3 HUB RING AF372.7 CORE AF B1*B2B3*B4B5*B6B7*B8SS* lift spokes B1, B3, B5, B7: pad eyes J12 at 1000 from centre, legs L + X at 940. Spokes run to the rim mid-sides; the 24 corners carry 135° brackets(J1 rim, J6 hub ring, J7 core ring). As built: no G riser posts. H box rails 39.9 either side of centre (ASSEMBLY step 7). Hidden lines omitted. PLAN, 2020 FRAME (skin, deck and plates off) (1:10)
view=frame-elevation ; scale=1:10 ; units=mm (paper) ; drawing=HULL-20-UFO-010 ; source=frame-2020 (FRAME-2020, CUT-SHEET, DRILL-TAP, ASSEMBLY), MODES; checked against make_dxf.py 162 (6 3/8 in)764.3 HUB RING AF584.2 (23 in)766.2 OVERALL2213 ACROSS FLATS (B1 / B5 line) GROUNDLanded mode (MODES): L 150 + M6 x 30 grub stud + X 400 + levelling foot (generic, set to 34.2) on the four lift spokes at 940.3 from centre. Roof modedrops X. Hidden lines omitted. ELEVATION, 2020 FRAME, LANDED MODE (looking +y) (1:10)
Joint schedule
JointQtyWhereHowFasteners each
J18RIM CORNER135° BRACKET ON THE INNER FACES, BOLTED FROM OUTSIDE1 × BR, 2 × FIND 1
J28SPOKE TO RIMFROM OUTSIDE THE RIM INTO THE SPOKE'S TAPPED END, COUNTERSUNK FLUSH1 × FIND 3
J38SPOKE TO CORE RINGFROM INSIDE THE CORE RING INTO THE SPOKE'S IN END1 × FIND 2
J48HUB POST TO SPOKEUP THROUGH THE SPOKE INTO THE POST1 × FIND 2
J58DECK AND HUB RING TO POSTDOWN THROUGH THE DECK AND THE RING INTO THE POST1 × FIND 4
J68HUB RING CORNERAS J11 × BR, 2 × FIND 1
J78CORE RING CORNERAS J11 × BR, 2 × FIND 1
J84PLATE LEGDOWN THROUGH THE CORE RING, 29 FROM ONE END, INTO THE LEG; UP THROUGH THE PLATE1 × FIND 2, 1 × FIND 5
J98RISER POSTNOT BUILT: THE DOME LIP BOLTS TO THE DECK—
J108PORTHOLE POSTUP THROUGH THE SPOKE; DOWN THROUGH THE PORTHOLE PLATE1 × FIND 2, 1 × FIND 5
J112BOX RAIL ON CORE RINGTHROUGH RAIL AND RING AT EACH END, NYLOCK2 × FIND 4
J124LIFT POINTEVERY OTHER SPOKE, 1000 FROM CENTRE: PAD EYE ON TOP, ONE UNDER, THROUGH BOLTS2 × FIND 2, 2 × PE
Unless otherwise specified
DIMENSIONS IN MM [IN]
TOLERANCES: X ±1 X.X ±0.5
ANGLES ±0.5° AS BUILT
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
RELEASED
Units
MM [IN]
Projection
THIRD ANGLE
PROJECTION
Title
FRAME, PLAN, ELEVATION, JOINTS
Size
B
Scale
AS SHOWN
Sheet
2 OF 4
Dwg no.
HULL-20-UFO-010
Rev
A

Drawing HULL-20-UFO-010 sheet 3: section S-S, detail U, drill table

view=frame-section-S-S-lift-spoke ; scale=1:5 ; units=mm (paper) ; drawing=HULL-20-UFO-010 ; source=frame-2020 (FRAME-2020, CUT-SHEET, DRILL-TAP, ASSEMBLY), MODES; checked against make_dxf.py 186.3186558754814 PAD EYES900 = B584.2 (23 in)162C HUB RING (cut), J5 holeE HUB POST 142 (J4)H BOX RAIL (beyond, y = +39.9)D1 CORE RING (cut), J3K PORTHOLE POST 60 (J10)316 PAD EYE, top + bottom (J12, generic)A RIM (2020, cut)J2 M6 x 40 FLAT HEADB1 SPOKE, tapped both endsL LEG POST 150X LEG EXTENSION 400LEVELLING FOOT (generic) Cut on the B1 axis, centre to rim, looking +y; members beyond the cut drawn as seen. Tapped ends Ø5.0 x 25 (M6 x 1.0). Clearance holes Ø6.5.J5 (deck + hub ring into E) is in DETAIL B. Fasteners unsectioned. 2020 profile generic (slot 6). SECTION S-S, THROUGH LIFT SPOKE B1 (1:5)
view=frame-detail-U-butt-joint ; scale=2:1 ; units=mm (paper) ; drawing=HULL-20-UFO-010 ; source=frame-2020 (FRAME-2020, CUT-SHEET, DRILL-TAP, ASSEMBLY), MODES; checked against make_dxf.py 19.925 TAPPED20B SPOKE 2020, end tapped M6 x 1.0, Ø5.0 x 25A RIM 2020, Ø6.5 side to side at 450, countersunk OUTSIDEM6 x 40 FLAT HEAD (ISO 10642), flush; LED line A covers it M6 x 40 flat head: 19.9 of thread in the spoke's 25 mm tapped end. Every frame butt joint is this joint: onestainless M6 into the tapped end of the piece it meets (J2, J3, J4, J8, J10, L), a drop of medium-strengththreadlocker. A, C, D and H are never tapped. DETAIL U, BUTT JOINT, M6 INTO THE TAPPED END (J2) (2:1)
Drill table, 6.5 and 5.5 clearance on the bar's centre line
PieceWhichFrom refThroughØForHoles
AALL 8450, CENTRESIDE TO SIDE6.5J2; COUNTERSINK THE OUTSIDE FACE8
BALL 8186 FROM INTOP TO BOTTOM6.5J4 HUB POST (372 FROM CENTRE)8
BALL 8558 FROM INTOP TO BOTTOM6.5J10 PORTHOLE POST (744 FROM CENTRE)8
BB1, B3, B5, B7754 FROM INTOP TO BOTTOM6.5LEG POST L (940 FROM CENTRE)4
BB1, B3, B5, B7814 FROM IN, FROM THE PAD EYETOP TO BOTTOM6.5J12 PAD EYES (1000 FROM CENTRE)8
CALL 8150, CENTRETOP TO BOTTOM6.5J58
DALL 868.9, CENTRESIDE TO SIDE6.5J38
DALL 829 FROM THE DOT ENDTOP TO BOTTOM6.5J8 (D2, D4, D6, D8); J11 (D1, D5)8
DD1, D529 FROM THE OTHER ENDTOP TO BOTTOM6.5J11, DRILLED WITH THE RAIL2
HBOTH10 FROM EACH ENDTOP TO BOTTOM6.5J11, DRILLED WITH THE RING4
A, C, DALL≈ 45 FROM EACH END, THROUGH THE BRACKETSIDE TO SIDE5.5J1, J6, J7; COUNTERSINK OUTSIDE48
Unless otherwise specified
DIMENSIONS IN MM [IN]
TOLERANCES: X ±1 X.X ±0.5
ANGLES ±0.5° AS BUILT
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
DETAIL DRAWING
Status
RELEASED
Units
MM [IN]
Projection
THIRD ANGLE
PROJECTION
Title
FRAME, SECTION S-S, DRILL TABLE
Size
B
Scale
AS SHOWN
Sheet
3 OF 4
Dwg no.
HULL-20-UFO-010
Rev
A

Drawing HULL-20-UFO-010 sheet 4: detail T, tap table, cut plan

view=frame-detail-T-135-corner ; scale=1:1 ; units=mm (paper) ; drawing=HULL-20-UFO-010 ; source=frame-2020 (FRAME-2020, CUT-SHEET, DRILL-TAP, ASSEMBLY), MODES; checked against make_dxf.py ≈4560135° BRACKET 60 x 16 x 6 (generic body)M5 NYLOCK on the bracket + vinyl capA2 RIMopen wedge outside: file the point, tape wrapM5 x 35 FLAT HEAD, from OUTSIDE, countersunk flushA1 RIM 2020 (cut at the bolt axis) Inner corners touch; bracket bend tight into the corner,centred top to bottom (2 mm of bar each side). Holes Ø5.5marked through the bracket, ≈45 from the corner end,countersunk on the outside face. Bolt tail 4 past the nylock(bar 20 + bracket 6 + nut 5). Hub ring (J6) and core ring (J7)the same. DETAIL T, 135° CORNER BRACKET (J1; J6, J7 alike) (1:1)
Tap table
PiecesEndsThreadDepth
B, E, F, G, K, L, X: BOTH ENDS88M6 × 1.0, DRILL-AND-TAP BIT25
A, C, D, H0NEVER TAPPED: SCREWS GO THROUGH THEM—
Cut plan, 20 bars of 1220
BarsPiecesLeft
1 TO 8A 900, C 30014
9 TO 16B 900, D 137.8, E 142≈ 31
175 × G 95, X 400, 2 × L 150≈ 20
183 × G 95, 4 × F 90, 8 × K 60≈ 50
192 × H 373, X 400≈ 68
202 × X 400, 2 × L 150≈ 110
Unless otherwise specified
DIMENSIONS IN MM [IN]
TOLERANCES: X ±1 X.X ±0.5
ANGLES ±0.5° AS BUILT
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
DETAIL DRAWING
Status
RELEASED
Units
MM [IN]
Projection
THIRD ANGLE
PROJECTION
Title
FRAME, DETAIL T, TAP AND CUT
Size
B
Scale
AS SHOWN
Sheet
4 OF 4
Dwg no.
HULL-20-UFO-010
Rev
A

Drawing HULL-20-UFO-040 sheet 1: UFO controller rev A, fabrication

UFO controller rev A, board outline, 1:1The saucer-shaped controller board, 130.3 by 83.0 mm, with its three M3 mounting holes dimensioned from the lower-left datum. 130.3 83.0 H2 H1 H3 8.15 23.00 65.15 78.00 122.15 23.00 3× Ø3.2 PLATED, M3 DATUM: LOWER LEFT OF THE OUTLINE EXTENTS
UFO CONTROLLER REV A, BOARD OUTLINE, 1:1
Drill table, UFO controller
ToolFinished ØHolesPlating
T10.301PTH
T20.8044PTH
T31.0032PTH
T41.152PTH
T51.3015PTH
T63.203PTH
TOTAL97
Revisions
ZoneRevDescriptionDateApproved
ALLAFIRST ISSUE: UFO CONTROLLER REV A (DESIGN, NOT BUILT) AND BOARDING PASS REV B (100 ASSEMBLED, ORDERED 2026-10-19), FROM THEIR FABRICATION DATA2026-11-01R. DIXON
6-8BSHEETS 6 TO 8 ADDED: SAUCER BADGE REV A (DESIGN). PART NAMES GENERIC ON ALL SHEETS2026-11-01R. DIXON
Layer stack
LayerTypeThicknessColour / material
F.SILKSLEGEND—WHITE
F.MASKSOLDER MASK0.01BLACK
F.CUCOPPER, 1 OZ0.035—
COREDIELECTRICTO SUITFR-4
B.CUCOPPER, 1 OZ0.035—
B.MASKSOLDER MASK0.01BLACK
B.SILKSLEGEND—WHITE
FINISHED BOARD1.6HASL LEAD-FREE

Fabrication notes

Unless otherwise specified:

  1. Fabricate per IPC-6012 class 2; accept per IPC-A-600 class 2.
  2. FR-4, 2 layers, 1.6 finished thickness. Copper 1 oz (35 µm) outer, finished.
  3. Surface finish HASL lead-free. Solder mask black both sides; legend white both sides. Vias tented.
  4. Hole sizes are finished sizes. Board outline per the Edge_Cuts layer; the outline governs.
  5. 100 % electrical test against the netlist. No fabricator marking on the board.
  6. Design only: the controller flying in the saucer is the hand-wired stack, drawing 030 sheet 2. This board drawing is from 2026-10-17, before the screw terminals came off.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
FABRICATION DRAWING
Status
DESIGN
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
UFO CONTROLLER REV A, FABRICATION
Size
B
Scale
1:1
Sheet
1 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 2: UFO controller rev A, assembly

view=exploded-iso ; drawing=HULL-20-UFO-040 ; scale=none (isometric)12136105793121184
EXPLODED ISOMETRIC, UFO CONTROLLER REV ASCALE NONE
Parts list, keyed to the exploded view
Find no.QtyPartNotes
11BOX PLATESIZE TBD (MEASURE); PHANTOM SIZE ONLY
23M3 NYLON SCREWFROM UNDER THE PLATE
33M3 NYLON STANDOFF 10AT H1-H3
41UFO-CONTROLLER REVA BOARD130.3 X 83.0, 2 LAYERS, 1.6
52DIP-14 SOCKET, U1/U274AHCT125N IN DIP SOCKETS (SOCKET MODEL) [U1, U2]
6215-PIN FEMALE HEADERJN1/JN2, THE ESP32-S3 BOARD'S SOCKETS [JN1, JN2]
76SCREW TERMINAL 2-POS 5.08J0 5V IN, J1-J4 STRIPS, J5 BEAM (UNUSED AS BUILT) [J0, J1, J2, J3, J4, J5]
81SCREW TERMINAL 3-POS 5.08J6 FOG RELAY (UNUSED AS BUILT) [J6]
96RESISTOR DIN0207R1-R4 330, R5/R6 10K, HORIZONTAL [R1, R2, R3, R4, R5, R6]
102C1/C2 0.1 µFCERAMIC DISC [C1, C2]
111C3 1000 µF 16 VRADIAL D10 [C3]
121ESP32-S3 MODULE BOARD, NANO FORM FACTORON JN1/JN2; USB-C POWER LEAD FROM J7
133M3 NYLON SCREWINTO THE STANDOFFS

Notes

  1. Every component model placed by KiCad from the board file.
  2. Box plate size to be measured: drawn in phantom, SIZE TBD.
  3. Circuit as drawing 030 sheet 3, with screw terminals J0 to J6 and the fog and beam parts fitted (U2, R5, R6, J5, J6). J5 and J6 are unused as built.
  4. U1 and U2 in DIP-14 sockets, notch as the silk. C3 stripe to 0 V.
U2 U1 JN1 H2 C1 H1 J6 R1 R6 R5 J7 JN2 J3 H3 J0 J5 J4 J2 R3 R4 C2 R2 C3 J1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 1 2 1 1 2 3 1 2 1 2 1 2 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 1 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 VIN G D2 D3 D4 D5 D6 D7 D13 D12 + - + - IN PWM - D - D - D - D - ESP32-S3 BOARD U2 U1 C1 R1 R6 R5 J7 R3 R4 C2 R2 C3
UFO CONTROLLER REV A, ASSEMBLY, TOP, 1:1
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
DESIGN
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
UFO CONTROLLER REV A, ASSEMBLY
Size
B
Scale
1:1
Sheet
2 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 3: boarding pass rev B, fabrication

Boarding pass rev B, board outline and drills, 1:1The boarding-pass board outline from its Edge_Cuts gerber, with every drilled hole from the drill files. 89.0 51.0
BOARDING PASS REV B, OUTLINE AND DRILLS, 1:1
Drill table, boarding pass
Finished ØHolesPlating
0.302PTH
0.652NPTH
Layer stack
LayerTypeThicknessColour / material
F.SILKSLEGEND—WHITE
F.MASKSOLDER MASK0.01BLACK
F.CUCOPPER, 1 OZ0.035—
COREDIELECTRICTO SUITFR-4
B.CUCOPPER, 1 OZ0.035—
B.MASKSOLDER MASK0.01BLACK
B.SILKSLEGEND—WHITE
FINISHED BOARD1.0ENIG

Fabrication notes

Unless otherwise specified:

  1. Fabricate per IPC-6012 class 2; accept per IPC-A-600 class 2.
  2. FR-4, 2 layers, 1.0 finished thickness. Copper 1 oz (35 µm) outer, finished.
  3. Surface finish ENIG. Solder mask black both sides; legend white both sides. Vias tented.
  4. Hole sizes are finished sizes. Board outline per the Edge_Cuts layer; the outline governs.
  5. 100 % electrical test against the netlist. No fabricator marking on the board.
  6. Quantity 100. Fabrication files frozen at fence-leds 159e747; checksums in the hand-off folder.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
FABRICATION DRAWING
Status
ORDERED
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
BOARDING PASS REV B, FABRICATION
Size
B
Scale
1:1
Sheet
3 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 4: boarding pass rev B, assembly

Boarding pass rev B, assembly, top, 1:1Component positions on the top side from the placement file, reference designators beside each. 89.0 51.0
ASSEMBLY, TOP, 1:1
Boarding pass rev B, assembly, bottom, 1:1Component positions on the bottom side from the placement file, reference designators beside each. D1 D2 D3 D4 D5 D6 J1 Q1 Q2 R1 R10 R2 R3 R4 R5 R6 R7 R8 R9 89.0 51.0
ASSEMBLY, BOTTOM (SEEN FROM BELOW), 1:1
Parts list, boarding pass rev B
ItemQtyRefPartPackage
16D1, D2, D3, D4, D5, D6REVERSE-MOUNT LEDLED REVERSEMOUNT 1206
21J1USB-CUSB C RECEPTACLE 16P FLUSH
32Q1, Q2MMBT3904SOT-23
42R1, R25.1KR 0603 1608METRIC
51R3100KR 0603 1608METRIC
61R410MR 0603 1608METRIC
71R54.7MR 0603 1608METRIC
84R6, R7, R8, R10220R 0603 1608METRIC
91R94.7KR 0603 1608METRIC

Assembly notes

  1. Assembled on the bottom side, 100 boards. Positions from the placement file; reference designators as marked.
  2. Not assembled on purpose: J2 (piezo pads), J3 (spare LED pads), JP1 (jumper, cut to separate), TP1 (touch disc).
  3. D1 to D6 reverse-mount, bottom: the cathode mark on the pad the footprint marks K.
  4. Q1, Q2: pin 1 to the silk dot. J1 (USB-C): opening to the board edge.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
ORDERED
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
BOARDING PASS REV B, ASSEMBLY
Size
B
Scale
1:1
Sheet
4 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 5: boarding pass rev B, schematic

Schematic of the boarding pass: USB-C power, a Darlington pair of MMBT3904 transistors switched by the touch disc, six reverse-mount LEDs, piezo and spare LED pads.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
SCHEMATIC
Status
ORDERED
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
BOARDING PASS REV B, SCHEMATIC
Size
B
Scale
NONE
Sheet
5 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 6: saucer badge rev A, fabrication

Saucer badge rev A, board outline and drills, 1:1The saucer badge's octagonal outline from its Edge_Cuts gerber, with every drilled hole from the drill files. 92.0 92.0
SAUCER BADGE REV A, OUTLINE AND DRILLS, 1:1
Drill table, saucer badge
Finished ØHolesPlating
0.30234PTH
0.652NPTH
TOTAL236
Layer stack
LayerTypeThicknessColour / material
F.SILKSLEGEND—WHITE
F.MASKSOLDER MASK0.01BLACK
F.CUCOPPER, 1 OZ0.035—
COREDIELECTRICTO SUITFR-4
B.CUCOPPER, 1 OZ0.035—
B.MASKSOLDER MASK0.01BLACK
B.SILKSLEGEND—WHITE
FINISHED BOARD1.6ENIG

Fabrication notes

Unless otherwise specified:

  1. Fabricate per IPC-6012 class 2; accept per IPC-A-600 class 2.
  2. FR-4, 2 layers, 1.6 finished thickness. Copper 1 oz (35 µm) outer, finished.
  3. Surface finish ENIG. Solder mask black both sides; legend white both sides. Vias tented.
  4. Hole sizes are finished sizes. Board outline per the Edge_Cuts layer; the outline governs.
  5. 100 % electrical test against the netlist. No fabricator marking on the board.
  6. The UFO-25 saucer at 1:24, an octagon 92.1 mm across the flats.
  7. The 0.30 holes are vias, tented. The two 0.65 NPTH holes locate the USB-C receptacle.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
FABRICATION DRAWING
Status
DESIGN
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
SAUCER BADGE REV A, FABRICATION
Size
B
Scale
1:1
Sheet
6 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 7: saucer badge rev A, assembly

Saucer badge rev A, assembly, top, 2:1Component positions on the top side from the placement file, reference designators beside each. C1 C11 C12 C13 C14 C15 C16 C17 C18 C19 C2 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C3 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C4 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C5 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 D1 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D2 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D3 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D4 D40 D41 D42 D43 D44 D45 D46 D47 D48 D49 D5 D6 D7 D8 D9 J1 R1 R10 R2 R3 R6 R7 SW1 SW2 U1 U3 U4 92.0 92.0
ASSEMBLY, TOP, 2:1
Parts list, saucer badge rev A
ItemQtyRefPartPackage
11C1100NC 0603 1608METRIC
22C2, C410UC 0603 1608METRIC
31C31UC 0603 1608METRIC
41C522UC 0805 2012METRIC
549C11-C59100NC 0402 1005METRIC
649D1-D49WS2812B RGB LED, 2020LED WS2812B-2020 PLCC4 2.0X2.0MM
71J1USB-CUSB C RECEPTACLE 16P
82R1-R25.1KR 0603 1608METRIC
91R31KR 0603 1608METRIC
102R6-R74.7KR 0603 1608METRIC
111R10330R 0603 1608METRIC
121SW1ABDUCTSW PUSH 6X6X5MM
131SW2BOOTSW SPST SMD
141U1CH32X035WQFN-28-1EP 4X4MM P0.4MM EP2.7X2.7MM
151U3LDO 3.3 V 200 MASOT-23
161U4USB ESD ARRAY, 2 LINESSOT-23-6

Assembly notes

  1. Assembled on the top side only: 115 parts from the placement file; reference designators as marked.
  2. Not assembled on purpose: J3 (add-on header pads, back) and TP1 to TP4 (debug pads, back).
  3. D1 to D49 are WS2812B RGB LEDs in the 2020 package. On the first article check pad 1 (DO) and the polarity mark on one rim, one porthole and the beam LED.
  4. LED chain: D1 to D32 the rim, clockwise from just west of the USB-C; D33 to D40 the hub, clockwise from the south spoke; D41 to D48 the portholes; D49 the beam.
  5. U1 pin 1 to the silk dot. J1 (USB-C) opening to the bottom edge. SW1 on the west edge.
  6. Firmware limits the LEDs to 400 mA; full white on all 49 would draw 735 mA.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
ASSEMBLY DRAWING
Status
DESIGN
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
SAUCER BADGE REV A, ASSEMBLY
Size
B
Scale
2:1
Sheet
7 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B

Drawing HULL-20-UFO-040 sheet 8: saucer badge rev A, schematic

Schematic of the saucer badge: USB-C power with ESD protection and a 3.3 V regulator, a CH32X035 microcontroller with its boot and abduct buttons and debug pads, and a chain of 49 WS2812B RGB LEDs, each with its own 100 nF capacitor.
Unless otherwise specified
DIMENSIONS IN MM
TOLERANCES: X.X ±0.2 X.XX ±0.1
PER IPC-6012 CLASS 2
DO NOT SCALE DRAWING
Drawn
R. DIXON
2026-11-01
Checked
R. DIXON
2026-11-01
Approved
R. DIXON
2026-11-01
Owner
HULL/20
SPACEWAYS
Document type
SCHEMATIC
Status
DESIGN
Units
MM
Projection
THIRD ANGLE
PROJECTION
Title
SAUCER BADGE REV A, SCHEMATIC
Size
B
Scale
NONE
Sheet
8 OF 8
Dwg no.
HULL-20-UFO-040
Rev
B