Yeorgia Argirou, Lawrence Percival-Alwyn, Richard Harrison, Sam Mugford, Graham Taylor

Published March 9, 2021

Pheno3D

A low-cost multi-purpose 3D digital photography phenotyping station

IntermediateWork in progress219

Things used in this project

Hardware components

CNBTR 5mm Bore Hole Diameter Brass Worm Gear Shaft + 20 Teeth Worm Wheel 0.5 Modulus Set Drive Gear Box Shaft

CNBTR 40T Brass Worm Gear Wheel & 5mm Hole Diameter Worm Gear Shaft Kits 0.5 Modulus Set 1:40 Reduction Ratio Drive Gear Box

Bright Mild Steel Solid Rod Bar 4mm

M4 (4mm) CAP SCREWS A2 STAINLESS STEEL ALLEN KEY HEXAGON SOCKET BOLTS DIN 912

Bright Mild Steel Solid Rod Bar 5mm

Software apps and online services

OpenSCAD

Hand tools and fabrication machines

3D Printer (generic)

Story

Crop morphology is a key consideration in crop breeding. Morphology is often highly associated with yield and has huge implications in consumer desirability, packaging and logistics. Currently morphology is selected by breeders in pre-breeding material by eye. This selected characteristic is extremely hard to qualify (fully describe) and quantify. We plan to develop a low cost, multi-purpose 3D digital photography phenotyping station, allowing users to build an incredibly high-resolution final 3D model of large biological structures which we will leverage for phenotyping crop and non-crop plant species. The Pheno3D platform will be designed to capture a high level of surface structure detail from which a high-resolution point cloud will be constructed using structure-from-motion technology. This point cloud will then be used to quantify volume, extract surface measurements and will be ultimately used as the frame upon which the images can be rendered to give a full digital likeness. We believe the Pheno3D platform could be rapidly adopted as a standard research tool for integration into experimental pipelines that investigate the genetics that underpin plant morphology.

Schematics

Code

module motor_housing(){
    difference(){
        union(){
            translate([0,0,0]) cube([47.25,48.5,20]);
            translate([1.8,-5.5,0]) cube([3.7,7,20]);
            translate([8.63,-3,0]) cube([3,4,20]);
        }
        union(){
            translate([3,3,0]) cube([41.25,42.5,25]);
            translate([0,12.25,5]) cube([50,24,20]);
            translate([11.625,0,5]) cube([24,50,20]);
        }
    }
}

module bearing_housing(){
    difference(){
        union(){
            translate([0,0,0]) cylinder(r1 = 15.5, r2 = 13, h = 7, $fn = 100);
            translate([0,0,-2]) cylinder(r = 15.5, h = 2, $fn = 100);
            
        }
        union(){
            translate([0,0,0]) cylinder(r = 11.25, h = 7, $fn = 100);
        }
    }
}

module base(){
    difference(){
        union(){
            cube([84.2,60,3]);
            translate([6,6,3]) cylinder(h = 20, r = 6, $fn = 100);
            //translate([6,54,3]) cylinder(h = 12, r = 6, $fn = 100);
            translate([68.75,54,3]) cylinder(h = 15, r = 6, $fn = 100);
            translate([68.75,6,3]) cylinder(h = 15, r = 6, $fn = 100);
            
            //translate([68.5,0,0]) cube([0.25,60,5]);
        }
        union(){
            translate([6,6,0]) cylinder(h = 28, r = 2.15, $fn = 100);
            translate([6,54,0]) cylinder(h = 15, r = 2.15, $fn = 100);
            translate([68.75,54,0]) cylinder(h = 18, r = 2.15, $fn = 100);
            translate([68.75,6,0]) cylinder(h = 18, r = 2.15, $fn = 100); 
        }
    }
}

difference(){
    union(){
        //cube([100,100,3]);
        motor_housing();
       //translate([0,24.5,21]) rotate([0,90,0]) cylinder(r = 5, h = 80, $fn = 100);
        translate([60,39,0]) bearing_housing();
        //translate([60,39,15]) cylinder(r = 10.5, h = 10, $fn = 100);
        translate([3.75,-12.925,-3]) rotate([0,0,16.5]) base();
    }
    union(){
        translate([60,39,-3]) cylinder(r = 2.6, h= 3, $fn = 100);
        translate([60,39,-0.5]) cylinder(r = 7, h = 1, $fn = 100);
    }
}

module bearing_housing(){
    difference(){
        union(){
            translate([0,0,0]) cylinder(r1 = 15.5, r2 = 13, h = 7, $fn = 100);
            translate([0,0,-3]) cylinder(r = 15.5, h = 3, $fn = 100);
            
        }
        union(){
            translate([0,0,0]) cylinder(r = 11.25, h = 7, $fn = 100);
        }
    }
}

module base(){
    difference(){
        union(){
            translate([59,0,28])cube([20.2,60,3]);
            translate([68.75,54,8]) cylinder(h = 23, r = 6, $fn = 100);
            translate([68.75,6,8]) cylinder(h = 23, r = 6, $fn = 100);
            //translate([68.5,0,0]) cube([0.25,60,5]);
        }
        union(){
            //translate([6,6,0]) cylinder(h = 3, r = 2, $fn = 100);
            //translate([6,54,0]) cylinder(h = 3, r = 2, $fn = 100);
            translate([68.75,54,0]) cylinder(h = 31, r = 2.15, $fn = 100);
            translate([68.75,6,0]) cylinder(h = 31, r = 2.15, $fn = 100); 
        }
    }
}

difference(){
    union(){
        //cube([100,100,3]);
       //translate([0,24.5,21]) rotate([0,90,0]) cylinder(r = 5, h = 80, $fn = 100);
        translate([60,39,25]) rotate([0,180,0]) bearing_housing();
        //translate([60,39,15]) cylinder(r = 10.5, h = 10, $fn = 100);
        translate([3.75,-12.925,-3]) rotate([0,0,16.5]) base();
        
        //translate([60,39,25]) cylinder(r = 2.7, h= 3, $fn = 100);
        //translate([60,39,-1]) cylinder(r = 7, h = 1, $fn = 100);
    }
    union(){
        translate([60,39,25]) cylinder(r = 2.6, h= 3, $fn = 100);
        translate([60,39,25]) cylinder(r = 7, h = 0.5, $fn = 100);
    }
}

Pheno3D

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Custom parts and enclosures

Motor bearing

Motor bearing head

Strap

worm gear spacer

Schematics

Frame construction

Frame construction

Frame construction

Frame construction

Frame construction

Code

Motor bearing openSCAD code

Motor bearing head OpenSCAD code

Strap OpenSCAD code

Worm gear spacer OpenSCAD code

Credits

Yeorgia Argirou

Lawrence Percival-Alwyn

Richard Harrison

Sam Mugford

Graham Taylor

Comments

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Pheno3D

Pheno3D

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Custom parts and enclosures

Motor bearing

Motor bearing head

Strap

worm gear spacer

Schematics

Frame construction

Frame construction

Frame construction

Frame construction

Frame construction

Code

Motor bearing openSCAD code

Motor bearing head OpenSCAD code

Strap OpenSCAD code

Worm gear spacer OpenSCAD code

Credits

Yeorgia Argirou

Lawrence Percival-Alwyn

Richard Harrison

Sam Mugford

Graham Taylor

Comments

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