gripper.frink

Download or view gripper.frink in plain text format


/** This makes a gripper cup for a long-reach grabber for 3-D printing out
    of flexible material like TPU.
*/


res = 254/in

// The disc that screws into the gripper.
discDiamBase = 18 mm
discDiamTop = 28 mm
discHeight = 9 mm

outerSpheroidDiam = 37.6 mm
outerSpheroidHeight = 21 mm

wallThickness = 2.4 mm
innerSpheroidDiam = outerSpheroidDiam - 2 wallThickness
innerSpheroidHeight = outerSpheroidHeight - 2 wallThickness

shiftUp = 5 mm

disc = callJava["frink.graphics.VoxelArray", "makeTaperedCylinder", [0, 0, 0, 0, 0, discHeight res, discDiamBase/2 res, discDiamTop/2 res]]

cupOuter = callJava["frink.graphics.VoxelArray" , "makeSpheroid", [outerSpheroidDiam/2 res, outerSpheroidDiam/2 res, outerSpheroidHeight/2 res]]
cupOuter.translate[0, 0, (outerSpheroidHeight/2 + shiftUp) res]

cupInner = callJava["frink.graphics.VoxelArray" , "makeSpheroid", [innerSpheroidDiam/2 res, innerSpheroidDiam/2 res, innerSpheroidHeight/2 res]]
cupInner.translate[0, 0, (outerSpheroidHeight/2 + shiftUp) res]

slicePlane = newJava["frink.graphics.Plane3DFloat", [0, 0, 15.1 mm res, 0, 0, 1]]

v = disc.union[cupOuter]
v.removeOutside[slicePlane]
v.remove[cupInner]

screwDiam = 2.2 mm
screwHeight = 7 mm
screwHole = callJava["frink.graphics.VoxelArray", "makeCylinder", [0, 0, 0, 0, 0, screwHeight res, screwDiam/2 res]]

v.remove[screwHole]

v.projectX[undef].show["X"]
v.projectY[undef].show["Y"]
v.projectZ[undef].show["Z"]

filename = "gripper.obj"
print["Writing $filename..."]
w = new Writer[filename]
w.println[v.toObjFormat["gripper", 1/(res mm)]]
w.close[]
println["done."]


Download or view gripper.frink in plain text format


This is a program written in the programming language Frink.
For more information, view the Frink Documentation or see More Sample Frink Programs.

Alan Eliasen was born 19355 days, 11 hours, 28 minutes ago.