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I use Alibre PE Computer Aided Design software. Recently I wanted to draw a hole in a cylinder that was at a specified angle from two axes. After much head scratching, I figured out one way to do it. Undoubtedly, there are many other ways to do this same thing.
http://rick.sparber.org/aca.pdf
Although the procedure was developed for Alibre, the logic behind it should apply to any 3D CAD program.
Rick
Thanks Rick! I've added your Compound Angled Hole Drawing Method to our Miscellaneous category, as well as to your builder page: Rick Sparber's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="/compound-angled-hole-drawing-method"><img src="/uploads/74264/compound-angled-hole-drawing-method.jpeg" alt="Compound Angled Hole Drawing Method" /></a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="/compound-angled-hole-drawing-method">Compound Angled Hole Drawing Method</a> <span> by <a href="/builder/Rick+Sparber">Rick Sparber</a></span> </div> <div class="tags"> tags: <a href="/tag/software">software</a>, <a href="/tag/cad">CAD</a> </div> </div> </div> </div>
I spent 3 years at technical colledge in drawing class learning how to draw elipses etc in oblique projection ,using a pencil,a ruler and pair of dividers and now...We can simply draw it with a mouse..ha ha .;)Quote:
Originally Posted by rgsparber
Sheet metal workers up to the 1970's were taught to do this as part of their trade . Ever noticed the connections of small pipes to larger flues at strange angles in industrial plants? Someone had to figure that out before it was made. A source for the various methods of projection can be found in trade related text books of the 1940's. :)