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@john-clark
Last active November 29, 2025 22:41
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Save john-clark/86c82d2f64ae706b9e38de3b934aca15 to your computer and use it in GitHub Desktop.

Large format 3D printer 72"×24"

The Custom 77″ × 24″ Large-Format Fused Deposition Modeling (FDM) 3D printer is designed for industrial prototyping, large-scale tooling, and production of extended-length components. The system emphasizes modularity, multi-zone heating, and high dimensional stability over a large build area.

The printer is constructed from a reinforced heavy-duty shelving unit with added crossbars for frame rigidity, providing a cost-effective yet structurally sound platform for large-format additive manufacturing.

  • Modular bed surface allows replacing only damaged sections instead of the full 72″ × 24″ plate

  • Multi-zone heating improves energy efficiency and reduces warm-up times

  • Structural rigidity is critical; sag in plywood or shelving frame can reduce print quality

  • Large-format prints require careful calibration of gantry alignment and bed leveling

Component Typical Price (per unit) Qty Estimated Total
Performax 77"W x 72"H x 24"D 3-Tier Heavy-Duty Metal Shelving Unit ~$79–$159 1 $180
HSP Magnetic PEI Flex Plates (620mmx620mm) ~$159 3 $480
Magnetic Sticker With 3M Adhesive (310mmx310mm) ~$13 12 $156
Aluminum bed plate – 1/8″ 6061, full 24×72″ (or cut from larger sheet) ~ $120–$300 1 $300
Silicone heater pads (3× 24″×24″) ~$169-$200 3 $600
Rigid insulation – mineral wool board 24×48″ (Roxul Rockboard 60) ~$26–$40 2–3 $120
Aluminum foil barrier or foil-faced board (for dust/reflective protection) 1 $20
¾” Pressboard 1 sheet sub-bed (cold side) ~$35 1/2 $40
Misc (fasteners, magnets or spring-steel sheets, SSR wiring, safety fuse, thermistors, insulation tape) $50
VEVOR Linear Rail, 2 PCS SBR 20-2200mm, Linear Guideway Rail, and 4 PCS SBR20UU Square Type Carriage Bearing Blocks, Linear Guide Rails for Automated Machines Equipments $85 1 $85
VEVOR Linear Rail, 2PCS SBR20-1500mm, Linear Slide Rail, 4 PCS SBR20UU Bearing Block CNC Kit Linear Rails and Bearings Kit CNC Rails Linear Rail Set $52 2 $105
$2136.00

1. Industrial Jigs, Fixtures, and Manufacturing Aids

  • 60–70″ long alignment jigs

  • Large flat positioning surfaces

  • Drill & router templates

  • Fixtures for cabinetry, automotive parts, aerospace parts

  • Packaging/custom crating fixtures

2. Architectural & Interior Design Components

  • Long moulding forms

  • Curved architectural panels

  • Large model panels for client presentations

  • Wall art, signage, decorative elements

  • Full-scale furniture prototypes

3. Automotive, EV, and Motorsport Parts

  • Full-length spoilers and air dams

  • Dashboard inserts

  • Door panels

  • Large ducting

  • Battery enclosures

  • Forming bucks for fiberglass or carbon fiber

4. Mold Making & Composites

  • RC airplane wings

  • Kayak or canoe hull sections

  • Automotive interior trim molds

  • Vacuum forming molds for large plastic sheets

  • Concrete casting molds

5. Engineering Prototypes & R&D

  • Mechanical housings

  • Enclosures

  • Robotics chassis

  • Industrial machine guards

  • Long mechanical arms

  • Conveyor system parts

  • Machinery covers and panels

6. Large Custom Enclosures & Panels

  • Server rack panels

  • Electronics consoles

  • Instrument panels

  • Drone wings and UAV components

  • Robotics covers

7. Artistic, Sculptural, and Costume/Cosplay Work

  • Armor pieces

  • Prop weapons

  • Large masks

  • Sculptural elements

  • Wall-mounted art or 3D signage

  • Theater/film set props

8. Batch Production / Parallel-Print Bed

  • Print dozens of parts at once

  • Divide the bed into zones (e.g., 3 × 24" modules)

  • Run different jobs in different sectors

  • Increase throughput for products

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