GC508 Water Tank Valve Cap

import FreeCAD as App import Part import Sketcher doc = App.newDocument("GC508_water_cap") # ========== 参数区（基于GC508同系列配件实测参考） ========== thread_od = 34.0 # 螺纹大径 cap_od = 38.0 # 盖子外圆 cap_h_total = 14.0 # 总高 thread_h = 8.0 # 螺纹高度 valve_hole_d = 8.0 # 阀芯通水孔 guide_d = 7.5 # 阀芯导向柱直径 spring_hole_d = 12.0 # 弹簧沉孔直径 spring_hole_h = 6.0 # 弹簧沉孔深度 grove_d = 30.0 # 硅胶密封圈槽直径 grove_h = 1.2 # 胶圈槽深度 # ========================================================== # 1. 盖子主体毛坯 base = Part.makeCylinder(cap_od/2, cap_h_total, App.Vector(0,0,0), App.Vector(0,0,1)) # 2. 车外螺纹简易基体（打印不做精细螺纹，靠打印粗牙配合；如果要精细螺纹建议后期换OpenSCAD） thread_cyl = Part.makeCylinder(thread_od/2, thread_h, App.Vector(0,0,0), App.Vector(0,0,1)) base = base.fuse(thread_cyl) # 3. 中间弹簧沉孔 spring_cut = Part.makeCylinder(spring_hole_d/2, spring_hole_h, App.Vector(0,0,cap_h_total - spring_hole_h), App.Vector(0,0,-1)) base = base.cut(spring_cut) # 4. 阀芯导向通孔（通水） valve_cut = Part.makeCylinder(valve_hole_d/2, cap_h_total, App.Vector(0,0,0), App.Vector(0,0,1)) base = base.cut(valve_cut) # 5. 底部硅胶密封圈凹槽 grove_cut = Part.makeCylinder(grove_d/2, grove_h, App.Vector(0,0,0), App.Vector(0,0,1)) base = base.cut(grove_cut) # 6. 倒圆角（减少应力，打印不容易翘边） base = base.makeFillet(1.0, base.Edges) Part.show(base) doc.recompute() print("GC508水箱阀盖主体生成完成！")

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.