Additional service enclosure and 40 mm rail supported transparent mechanism guards for the existing sourced feeder. These items are shown in the 3D model. The R1 BOM and workbook retain their original quantities and prices; this addendum records what R3 adds or changes. No new quotes or total purchase price are claimed.
Main frame 1030 × 1390 × 2490 mm · Rear bay 1700 × 750 × 1750 mm · Shade roof 1900 × 950 mm
The hopper guard and front preparation station have their own 40 mm rail support frames, with a crossmember under the soaking-pan motor / cradle. The rear bay sits behind the main feeder, from Z −1500 to −750 mm. Roof overhang reaches Z −1600 mm and X ±950 mm. The open plate is centered at Z +1320 mm, with its rounded surround reaching Z +1610 mm. Allow at least 1.90 m width × 3.21 m depth for the displayed hardware, plus open-door and service clearances. The 2.49 m main frame height is unchanged.
| Reference | R3 requirement | Scope / outstanding work |
|---|---|---|
| F01 supplier / fabrication ↗ | 52 additional finished rails / 43.66 m | Main frame + R3 enclosures: 107 pieces / 100.28 m. Prototype fixture remains separate. Cut allowance has not been reconciled with structural support / anchoring. |
| F02 supplier / fabrication ↗ | 32 additional corner brackets shown | Modelled corner brackets only; final joint strength, supplemental brackets and anchors remain to size. |
| F03 supplier / fabrication ↗ · F04 supplier / fabrication ↗ | Panel / accessory fasteners: TBD | Select screws, washers, nuts and spacing from measured material and wind loads; original 200-set allowance is not a final R3 quantity. |
| F05 supplier / fabrication ↗ | Service bay anchoring: TBD | Additional freestanding frame must be anchored; final ground conditions / purchased brackets are not selected. |
| F06 supplier / fabrication ↗ | 104 additional rail-end positions | 52 additional rail members; shared joint ends may need no exposed cap. Count exposed ends after joint design. |
| A01 supplier / fabrication ↗ · A02 supplier / fabrication ↗ | See panel schedule below | Cabinet acrylic skins are divided into tiles under 600 × 600 mm; G02 / G03 are single stock-sized panels for the selected 24 × 48 inch stock. 2 mm seams need supported printed joiners and sealing. No fabrication release / sheet nesting. |
| A03 supplier / fabrication ↗ · A04 supplier / fabrication ↗ | Printed joiners, shelf brackets, stand-offs, vent cowls, handles; hardware: TBD | 4 rain-facing vent cowls, 2 door pulls, segmented seam battens, shelf supports and guard posts. Printing volume, insert schedule and load validation remain open. |
| H02 supplier / fabrication ↗ | 4 additional service-door hinges | Two per clear service door. Drawing and mounting fasteners still to choose. Purchased stainless hinges from existing source family. |
| H03 supplier / fabrication ↗ · H04 supplier / fabrication ↗ | 2 service-door latch positions; gasket length TBD | Check overlap with R1 latch allowance. Latches and supported gaskets are required at panel / access seams; no outdoor enclosure rating established. |
| C04 supplier / fabrication ↗ | Opaque facing / weather-resistant finish: TBD | Roof and opaque service walls are acrylic with purchased opaque foil facing illustrated white. Confirm compatible UV/weather finish and backing; clear stock alone is not the shade surface. |
| B03 supplier / fabrication ↗ · B04 supplier / fabrication ↗ · B05 supplier / fabrication ↗ | Additional glands, strain relief, protected hose / cable routes: TBD | Dry and wet compartments use independent entries; hole schedule, vent heat rejection and rain tests remain open. |
| D11 supplier / fabrication ↗ | 1 existing battery; no new unit selected | 480 × 300 × 300 mm is an illustrative reserved envelope only. Exact Anker model, weight, ventilation, temperature limits, transfer behaviour and capacity must replace it. |
| W01 supplier / fabrication ↗ · W02 supplier / fabrication ↗ · W07 supplier / fabrication ↗ | Relocated; no additional pump or tank | Wet compartment has the pump shelf, lower water can, leak sensor and removable drip tray. Condensation / spill disposal still to detail. |
| M17 supplier / fabrication ↗ | 14 rack-retained covers; replaces passive cam concept | Cover stays with rack as pan slides from under it. Clearance, sealing and fill-height sweep remain to test. No additional lid motors. |
| Member | Count | Length mm | Finished m |
|---|---|---|---|
| Service uprights | 6 | 1710 | 10.26 |
| Service width members | 6 | 1620 | 9.72 |
| Service depth members | 9 | 670 | 6.03 |
| Hopper guard uprights | 4 | 1450 | 5.80 |
| Hopper guard crossmembers | 12 | 290 | 3.48 |
| Preparation guard uprights | 4 | 700 | 2.80 |
| Preparation width / pan support members | 5 | 850 | 4.25 |
| Preparation depth members | 6 | 220 | 1.32 |
| Total additional rails | 52 | 43.66 |
Cabinet skin tiles stay under 600 mm per side. The separate G02 deck (940 × 520 mm) and G03 shield (960 × 360 mm) also fit 609.6 × 1219.2 mm stock. Tiling follows the 3D helper, with 2 mm gaps and printed seam battens. Opaque service surfaces require purchased facing; the underlying acrylic remains the specified thickness.
| Assembly | Quantity | Envelope W × H mm | Thickness mm | Tiles total | Each tile W × H mm |
|---|---|---|---|---|---|
| Shade roof | 1 | 1900 × 950 | 6.35 | 8 | 473.00 × 473.00 |
| Roof long fascia | 2 | 1900 × 60 | 3.175 | 8 | 473.00 × 58.00 |
| Roof end fascia | 2 | 950 × 60 | 3.175 | 4 | 473.00 × 58.00 |
| Service side wall | 2 | 750 × 1680 | 3.175 | 12 | 373.00 × 558.00 |
| Service forward wall | 1 | 1700 × 1680 | 3.175 | 9 | 564.67 × 558.00 |
| Wet / dry partition | 1 | 744 × 1680 | 3.175 | 6 | 370.00 × 558.00 |
| Service floor | 1 | 1700 × 750 | 6.35 | 6 | 564.67 × 373.00 |
| Dry access door | 1 | 1292 × 1675 | 3.175 | 9 | 428.67 × 556.33 |
| Wet access door | 1 | 392 × 1675 | 3.175 | 3 | 390.00 × 556.33 |
| Battery shelf | 1 | 560 × 390 | 6.35 | 1 | 558.00 × 388.00 |
| Pump shelf | 1 | 170 × 180 | 6.35 | 1 | 168.00 × 178.00 |
| Drip tray bottom | 1 | 355 × 610 | 6.35 | 2 | 353.00 × 303.00 |
| Drip tray long rim | 2 | 610 × 28 | 6.35 | 4 | 303.00 × 26.00 |
| Drip tray short rim | 2 | 350 × 28 | 6.35 | 2 | 348.00 × 26.00 |
| Hopper guard wall | 4 | 330 × 870 | 3.175 | 8 | 328.00 × 433.00 |
| Hopper guard lid | 1 | 330 × 330 | 6.35 | 1 | 328.00 × 328.00 |
| Preparation guard side | 2 | 260 × 565 | 3.175 | 2 | 258.00 × 563.00 |
| Preparation guard front | 1 | 890 × 340 | 3.175 | 2 | 443.00 × 338.00 |
| Preparation guard roof | 1 | 890 × 260 | 6.35 | 2 | 443.00 × 258.00 |
The plate has moved forward 500 mm. The preparation roof, front crossbars and soaking pan are entirely behind the plate footprint. A raised common chute retains approximately 33.8° slope and exits behind the plate. The soaking pan is raised 130 mm and the hopper 150 mm to preserve the gravity path. The cold-front hatch is raised to the revised chute height. R1 engineering-studio clearance calculations describe the original model; they do not certify the R3 guard geometry.
Contact design targets: R95 outer surround corners; R12 surround / outlet rounding; R60 rear-shield plan corners with R15 captured edge covering. The plate rim and handles are inside the rigid surround; acrylic deck edges, support corners and screw heads are concealed. No flexible push-on trim. Rear-only tool access; no plate actuator. Actual tortoise reach, bite, impact, trapped-gap, cleanability and retention tests remain mandatory prototype work.
Guard BOM CSV · Parametric guard CAD · Deck laser outline · Rear shield laser outline
| Guard | Dimensions / design basis | Before fabrication |
|---|---|---|
| G01 supplier / fabrication ↗ Rounded plate surround / handle enclosure | 1000 × 580 mm; R95 outer corners; R12 contact edges | Rigid segmented printed surround covers the steel rim, both handles and support corners. Food opening 770 × 364 mm, R45 corners. Concealed underside retention; no exposed screw heads or loose push-on edge trim. Print joints must be flush, sealed and retained. PETG is a prototype, not a proven bite-resistant finished material. |
| G02 supplier / fabrication ↗ Captured acrylic plate deck | 940 × 520 × 6.35 mm; R70 corners | Laser-cut deck is entirely captured beneath the rigid surround. The stainless plate sits on concealed printed risers; all acrylic edges and fasteners are inaccessible from the eating side. Rear-only release after feeder power isolation. Load, attachment and pull-off validation remain open. |
| G03 supplier / fabrication ↗ Rounded rear preparation shield | 960 × 360 × 6.35 mm; R60 panel corners / R15 guard | Fixed transparent shield stays behind the plate. Encapsulated panel edges; rounded, recessed food outlet. This is a separation barrier, not a validated tortoise reach exclusion. Check with an actual head/neck template before animal use. |
| G04 supplier / fabrication ↗ Rounded chute nose / outlet edge cover | 740 mm span; R12 terminal nose | Printed backing and a rounded encapsulated edge protect the chute lip; the final food-contact liner / smooth finish remains to select and test. All solid outlet geometry ends behind the plate footprint. No moving flap or overhead arm above the eating surface. |
| G05 supplier / fabrication ↗ Concealed deck retention / underside covers | 16 M6 positions; candidate fastener stack only | M6 hardware follows the existing McMaster F03/F04 family. Print captured insert housings and tool-access covers below the deck. Covers must require tools and remain captive; no exposed caps, screws or detachable trim near the tortoise. Verify actual stack before selecting screw length. |
General guarding reference: OSHA: guards should not introduce sharp edges, unfinished surfaces or new hazards. This is a general design reference, not a tortoise-specific safety certification.
Dry side: two purchased stainless driver cabinets, separate logic-module enclosure, raised battery shelf and protected power distribution. Wet side: lower water tank, raised peristaltic pump, non-contact level sensor and drip tray with leak sensor. A solid partition separates the two. The opaque canopy and walls provide shade; vent cowls are drawn for inspection but airflow and weather performance are unverified. AC condenser space above the service canopy remains a clearance check.
