V4 beta Nov-18-2017 available now

 From:  bemfarmer 25 Nov 2017  (108 of 137) 
8682.108 
The SpurGearProfile script is faulty.
- B
I have nearly the same code in LogSpiral script, which works fine.

SpurGear may have a misplaced
code:
 </div>
near the end of the .htm file?

EDITED: 25 Nov 2017 by BEMFARMER