Hinge Cap (Cover) for Dr Hahn KT-EN, KT-N 6R, KT-V 6R, KT-SN, KT-SV, and KT-B 6R - OpenJSCAD model

prusaprinters

I made the model using OpenJSCAD. The outer diameter is 25 mm, the inner diameter is 23 mm, the internal slot is 20.2 mm by 15 mm, and the overhangs are 0.5 mm from all sides.The cap covers the top of the hinge.It should be compatible with Dr Hahn KT-EN, KT-N 6R, KT-V 6R, KT-SN, KT-SV, and KT-B 6R. All of them are structurally similar.PLA isn't perfect for using the cap outdoors, and PETG is a better option because you need UV resistance and you need to tolerate a wide temperature range.const jscad = require('@jscad/modeling') const { cuboid, cylinder, roundedCylinder } = jscad.primitives const { subtract, union, intersect} = jscad.booleans; const { translate } = require('@jscad/modeling').transforms const figureEmptyCylinder = ({diameterInternal, diameterExternal, height, center = [0, 0, 0], roundRadius = 0.5, segments = 128}) => { let c0 = roundedCylinder({radius: diameterExternal / 2 , height: height, center, segments, roundRadius}); let c1 = cylinder({radius: diameterInternal / 2, height, center, segments}); return subtract(c0, c1); } const figureBarrel = ({diameterInternal, diameterExternal, height, center = [0, 0, 0], segments = 32, bottomHeight = 1, roundRadius = 0}) => { if (height === undefined) { throw "Undefined height"; } let centerNew = [center[0], center[1], center[2] - height / 2.0 + bottomHeight / 2.0]; return union( figureEmptyCylinder({diameterInternal, diameterExternal, height, center, segments}), cylinder({radius: diameterExternal / 2.0, height: bottomHeight, center: centerNew, segments}) ) } const figureSlot = ({diameterExternal, thickness, height, segments = 32}) => { return emptyCilnderHalf({l1: diameterExternal[1], l2: diameterExternal[0], thickness: 1, height: height, segments}); } const figurePlaceholder = ({radius, width, height, thicknessSlot = 1.0, thicknessExternal = 2.0, thicknessExtra = 0.3, heightInternal = 7, heightExternal = 3, heightOuterDiameter = 1.0, segments = 32}) => { const outerDiameter = [width + 2 * thicknessExtra, height + 2 * thicknessExtra]; const slotInternal = translate( [0, 0, heightInternal / 2], figureSlot({ diameterExternal: [width, height], height: heightInternal, thickness: thicknessSlot, segments: segments }) ); const slowInternalExtraUp = translate( [0, 0, heightInternal - 0.5], figureSlot({diameterExternal: outerDiameter, height: 0.5, thickness: 0.5, segments}) ); const slowInternalExtraDown = translate( [0, 0, heightInternal - 1.5], figureSlot({diameterExternal: outerDiameter, height: 0.5, thickness: 0.5, segments}) ); const outerCircle = translate( [0, 0, heightExternal / 2], figureBarrel({ diameterInternal: radius - 2 * thicknessExternal, diameterExternal: radius, height: heightExternal, segments: segments }) ); return union( slotInternal, slowInternalExtraUp, slowInternalExtraDown, outerCircle, ); } const emptyCilnderHalf = ({l1, l2, thickness, height, segments = 32}) => { let o = l2 - l1; let cUp = subtract( subtract( cylinder({radius: l1 / 2, height, center: [0, o / 2, 0], segments}), cylinder({radius: l1 / 2 - thickness, height, center: [0, o / 2, 0], segments}) ), cuboid({size: [l1, l1, height], center: [0, -l1 / 2.0 + o / 2, 0]}) ); let cDown = subtract( subtract( cylinder({radius: l1 / 2, height, center: [0, -o/2, 0], segments}), cylinder({radius: l1 / 2 - thickness, height, center: [0, -o/2, 0], segments}) ), cuboid({size: [l1, l1, height], center: [0, l1 / 2.0 - o/2, 0], segments}) ); return translate([0, 0, 0], union( cUp, cDown, cuboid({size: [thickness, o, height], "center": [(-l1 + thickness) / 2, 0, 0], segments}), cuboid({size: [thickness, o, height], "center": [(l1 - thickness) / 2, 0, 0], segments}) )); }; function main() { return figurePlaceholder({ "radius": 25, "width": 20.2, "height": 15, "segments": 32 }) } module.exports = { main }