could you please send me one small file, which works on my
OpenScad-Installation, where I can see the syntax and the stuff with
INCLUDE ? Please.

e.g. making an M8 screw and/or a M8 bolt..

That would be great

thank you very much in advance

Karl

Am 08.06.21 um 11:08 schrieb fred via Discuss:

//twist nut 8mm blank
include<NopSCADlib/utils/thread.scad>

//module male_metric_thread(d, pitch, length, center = true, top = -1,
bot = -1, solid = true, colour = undef) { //! Create male thread with
metric profile

translate([0,0,10])
difference(){
      union(){
      translate ([0,0, 5])  sphere( 12);
      scale([1.5,1,1])translate ([0,0,-5])  rotate ([90,0,0])
cylinder(h=3,d=15,center=true);
      cylinder (h=20,d=16,center=true);
}
     male_metric_thread(8,1.25,21);

     translate([0,0,-60])  cube([100,100,100],true); //chop off bottom

}

$fn=80;

fyi,well worth looking at NopSCADlib

hth

On 08/06/2021 10:49, Karl Exler wrote:

You need to download NopSCADlib, or clone it from github, and set the
OPENSCADPATH environment variable to point to the directory containing
NopSCADlib. Or put it in one of the directories already listed in Hlep /
Library info.

I think the syntax error is because the commented out module definition is
split on to two lines and the second line isn't commented out. i.e. line 5
is part way through a comment. The line probably got broken by an email
client.

On Wed, 9 Jun 2021 at 09:26, Terrypin terrypingm@gmail.com wrote:

You need 2 and 3 to run any of the scripts that do things like make the
bill of materials, STLs, assembly drawings and project instruction manual.
You don't need them to simply run the OpenSCAD code in the GUI and then
manually export the STL.

On Wed, 9 Jun 2021 at 15:43, Terrypin terrypingm@gmail.com wrote:

I've not bothered to put in the dimensions you need, I'm not sure if
they are correct anyway (whatever 😁), and if you go with hex socket you
need to check the af value (and the ,866, maybe) It takes a while to
render. but should get you on your way. I've printed 6mm and larger
threaded stuff, (see my previous post) but I would not bother with much
smaller on fdm. I started by making the studding (generally for bolt
lengths the length does not include the head)  then added the head, then
took out the hex socket.

/ cap head screw
include<NopSCADlib/utils/thread.scad>

$fn=20; //whatever

length=30; //whatever
diam=2.7; //  out of tolerance 3mm?
head_thick =4; // whatever
head_diameter = 6 ; //whatever
pitch =0.5; // whatever or 0.35
af =4 ; //hex socket

// make blank studding
difference(){
    union(){
      male_metric_thread(diam,pitch,length+head_thick,false);
// head
     cylinder (head_thick,d=head_diameter);
    }
//socket
   #cylinder(head_thick-1,d=af*0.866,$fn=6);
}

On 09/06/2021 15:43, Terrypin wrote: