Hello all, I posted last week - I am evaluating TurboCad Professional at the moment to see if it will meet my needs - I'm interested in drawing up WW1 fighter aircraft in full detail. While most of my output would be in the normal 2D views of the parts, I need to be able to assemble the parts into a full model as well. With a background in other packages that deal with 3D, but not CAD, I am quite comfortable with the 2d tools in TurboCad, but can't really feel comfortable in assessing the 3d tools. My post last week got a few helpful replies, and of course one of them was to post an example of what I am trying to do.
I have included a couple of images here of a metal bracket that would go around a wooden spar in the wing. The two 'isometric' views are from 180 degrees apart, with a side elevation thrown in for good measure. As the sketch is so poor, let me describe the part a little.
The bracket consists of a sheet of steel that has been bent to fit a wooden spar (not shown) that is a bit like a parallelogram in cross section. At the front of the bracket there are three holes allowing the slot-topped bolts to pin the bracket together. There are 'lightening' holes in the vertical part of the bracket at the front, both above and below the rounded flanges in the front of the bracket.
At the top of the bracket there is a 'blob' of steel which is an odd shape as a result of sitting on the slope of the bracket. This blob also has - 1 slot headed bolt, one domed piece of steel in the middle that has a slot cut into the hemispherical dome, and at the end a cylinder which has been cut out down the middle - and then holes into the sides of what remained.
At the back of the bracket (scan2.jpg), on the right of the image there is a flange with a hole in it coming out from the edge and being bent backwards. Next, in the middle is a steel tube that comes out of the bracket, and next to that is another flange with a hole in it. This time it is clear that this flange material comes from the body of the steel, and has been bent away from it.
So, there is one sample and there are a lot of weird and wonderful shapes in it. I have measurements for most of the key dimensions, so I will be looking to have a very accurate model built in due course.
Can anyone be so kind as to give me a few pointers as to how to best generate a bracket like this ? Should I be using primitives and moving, scaling and booleaning them together, or taking 2d shapes and extruding them ? I'm not looking for someone to model this for me, just to give me a little direction, before my trial period expires.