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      The aim of this design is to build a simple, cost effective (under $1000) and relatively compact large volume (m3) 3D printer that will use a pellet extruder to create art/design objects using shredded recycled plastics.

      I decided on the H-belt configuration but using two sets of motors and belts to minimise belt stretch and keep the motor size down (all motors are NEMA17).

      Extrusion diameter will be from 0.8 - 2.5mm.

      The Openbuilds v-slot extrusion, v-wheels and mini-v wheels are the foundation of the frame/linear rail/gantry design. I experimented with various profiles (2020, 2040, 2060, 2080 and C-beam) and configurations in CAD but settled on the 2040 as a singular extrusion profile throughout the design.

      The z-gantry is also belt driven using two stepper motors with planetary gearboxes.

      Outside Dimensions using 1200mm cut lengths of 2040; x=1200mm y=1300 z= 1380


      Build Size; x=1000mm y=1050 z= 1100

      Note; this should have been under draft builds - feedback on the design is welcome.

      Big H-Bot - gantry detail 1.JPG Big H-Bot - gantry detail 2.JPG Big H-Bot - gantry detail 4.JPG Big H-Bot - underside.jpg Big H-Bot - Z gantry detail.jpg
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  • Build Details

    Build License:
    • CC - Attribution - CC BY

    Reason for this Build

    To recycling plastic waste into art/design objects.

    Inspired by

    various builds and forums - not one in particular
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