I have been working on a project for some time now, a 3D piping library.
![](https://serving.photos.photobox.com/45525018ba97ea9828747a923454852d3e48aaa9e5dbaabafae8166bd46993ed2343bd04.jpg)
.
With help from swamp members I have now have the Concentric & Eccentric reducers working.
However unlike all of the other fittings, these are created via lisp on the fly, like the pipe work, not inserted blocks.
Your thoughts please:
1/ Should I leave the individual 3D Solid as just that, 3D solids.
OR
2/ Create a block in the active model/drawing with a relevant block name.
I'm tempted by option 2, (more learning for me required
![Smiley :)](http://www.theswamp.org/Smileys/black/smiley.gif)
) as this would enable a list of all blocks in the model being produced.
Steve