I need to draw a 120mm diameter cylinder, 30mm thick, with 10mm diameter holes protruding 50mm from the periphery into the bulk (normal or at an angle to the periphery).
This task I’m trying to accomplish by subtracting small solid cylinders from the main cylinder. However, I’m finding great difficulty in, first, creating a part drawing consisting of all these 12 small cylinders (to be subtracted from the main cylinder) and, second, to position them precisely when overlaying them over the main cylinder for subtraction. The way I understand it I have to first draw a part consisting of all these 12 small cylinders but each one of them is at a different angle which doesn’t work with extrude. How can this be done? Then, even if I manage to draw this part, consisting of the 12 small cylinders, when I invoke it to have it subtracted from the main cylinder the positioning appears arbitrary and I can’t seem to be able to place it precisely co-axially. Do you have any suggestion how this cylindrical part can be drawn? Thanks in advance for your help.