Jar lid 4 thread

thingiverse

Human: Jar Lid Fits Perfectly Out of the Box - 4 Inch Diameter, Adjustable Threads. This jar lid fits standard 100mm diameter jar necks with four 180 degree screw threads at a 30mm pitch. Simply install Blender 3.80 or later and open the jar_lid_pre_join.blend file to get started. The included pre-assembly file is an excellent "learn Blender" project for beginners. To adapt the lid to your requirements, select View | Front (or press number [1] key on keypad). The top object is a cutting tool with a 51.5mm diameter cylinder and 12 intersecting torus arcs for threads. To adjust the thread position and pitch, simply mouse-click to select the Cylinder and add a boolean modifier. Select Torus 000 as the Object in the Modifier and click [Apply]. This will cut the shape of Torus 000 into the Cylinder. Repeat this process for Torus 001 to Torus 011 to cut all the threads. Select the lid (Cylinder 001) and drag it upwards using the blue arrow to almost cover the cutting tool (Cylinder). You should have about 1mm of the cutting tool visible above the lid, which will be the thickness of the top of the lid. With Cylinder 001 selected, add a boolean modifier and select Cylinder as the modifier Object. Click [Apply] then delete Cylinder. This will cut the threads into the lid. Select the sealing ring (Torus) and drag it up so that the bottom of the Torus is fractionally above the bottom of Cylinder. With the Torus selected, shift-click the lid so that both objects are selected. Right-click and select Join. You should now have just one object left - your finished lid! Drag it around using your mouse with the middle button (wheel) pressed to check that it looks as expected. Export your finished lid as a STL file or your preferred format for slicing.