DaveM said: The problem is the '82 has the air flow coming from above (thru the hood). The original has an open top. I'm sure that it is not a big issue, just saying.Nice job on the design. I'm a Mechanical Design Engineer and I use SolidWorks and create 3D parts on a printer all the time but my printer is limited to 8 x 8  x 12 high. The new materials available now are great, earlier stuff would break if you looked at to hard.