I recently
bought a 1960 Panhead engine for my Cadbike 56 project, and decided
to put it in CAD first. This time I will only partially disassemble
it as the engine has very recently been rebuilt. The consequence
is that I will for example start with a scan off the complete
lower end, which means a very, very large scanfile..
I use
a special white paint that disappears without a trace after
a few hours that helps a lot with inmproving the scan quality.
Instead of disassaembling the actual lower end of the motor,
I cut the scan file (STL)into 5 pieces; left and right case,
front and rear cylinder and the camcover. This is purely to
make the files smaller and easier to work with.
I had already
completed postprocessing the left case when I realised I should
document the process for the website. The output of the scanner
is an STL file, millions of points connected by triangles (Facets).
The postprocessing is the quite time consuming converting of all
these facets to a clean CAD solid geometry. The scanning is easy,
the postprocessing is 90% of the job.
This is as
far as I got this week. While postprocessing the cases I scanned
the front cylinder head as well. To be continued...
