[OpenSCAD] threads

Yvette S. Hirth, CCP, CDP yvette at dbtgroup.com
Thu Apr 23 11:16:08 EDT 2015


hi all,

i'm trying to "cut" threads in openSCAD.  i'm using the threads.scad 
module i found on thingiverse, like so:

use <threads.scad>;
...
english_thread(diameter=(632ScrewRadius*2),
threads_per_inch=32,
length=(coverDepth+coverThickness),
internal=true,
$fn=30);

gosh, is it *slow*!  i played a game of freecell and the progress meter 
hasn't budged from "just started".  and now i've finished typing this 
email and still no progress.

i put cylinders in the code to check for positioning and depth; once i 
got those right, i commented out ONLY the first cylinder and inserted 
just the code for the one thread above.  my res time (F6) was 45sec; now 
it could be hours.  from *one* thread - and i have four to gen before 
slicing.

i'm sure the lack of progress is due to threads.scad creating a 
bazillion polygons.  i'm not trying to complain; i'm just trying to get 
my stuff printed.

is there any alternative to threads.scad?

thanks!
yvette




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