Hello there ^^
Newbie here and rescue needed 
Does anyone ever create snail shell in sketchup as attached ?
I need to adjust the size of the head (for the speaker) of shell and keep the snail shell body in that size..
but i dunno how to do it (especially when i import the file from STL it become small pieces)..
or i need create the new one.. ? (hope not)
If somebody here ever adjust it, kindly share how to do it.. 
Many thanks,
T