Extrude the ring region between the circles to the same height of the brick.This will have a thinner wall section to avoid sink marks on the outside of the brick.Sketch a circle on the center of the inside of the brick that will just fit between the bumps.Create a thin wall feature of 1.5 mm and open the bottom face of the brick.Before accepting the selection, change to Face selection and deselect the bottom face.Use All Rounds selection option to pick the part to select outside edges.Use the extrude command > chain option to extrude the rectangle downward 10 mm.Offset that rectangle 1.5 mm to the outside.Manually create a tangent relationship to the top silhouette point of the initial cylinders.From the top view, sketch a rectangle by center and make tangent to the outside edge of the cylinders.Redefine the origin for the pattern to keep centered on the base coordinate system by using the Rectangular- Reference Point Command.Distance should be 8.00 mm in both directions.Select the cylinder in the graphics window or from the Pathfinder and select pattern to create a Rectangular Pattern.
Modify the diameter to 4.5 mm and the height to 2.0 mm.Extrude the region 4.0 mm to create a cylinder.Draw a Ø 5 mm circle on the Top plane (x,y plane) with its center located 4mm x 4mm from the origin point of the base coordinate system.Start by creating a NEW part file using a Metric Part template.
#AUTOCAD 2012 3D TUTORIAL DOWNLOAD#
Download the text guide with annotated pictures or follow along with the video below.
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