any idea why threaeds are not appearing?
Hello OpenSCAD,
I thought this was supposed to have threads but it is just a hole.
Thanks, Bob Roos
// camera tripod mount
// Bob Roos
// January 14, 2023
include <BOSL2/std.scad> // or screws or threading
include <BOSL2/screws.scad> // or screws or threading
H = 9.5;
W = 34.75;
L = 36;
L1 = 25.5;
A = 45;
T = 1.8;
Oh = 100;
Ow = W+2.25T;
Ol = 3.1T;
Rnd = .75;
Wedge = (L-L1)/2;
// top/sliding part
diff(){
rect_tube(size=[Ow,Ol],h=2H,wall=T,rounding=Rnd,anchor=[0,-1,-1])
attach(TOP+CENTER)fwd(3.1T/2)cuboid([Ow,2.5+H2.0,T],rounding=Rnd,except=TOP+BACK,anchor=[0,-1,0]) // flat on top
attach(TOP+CENTER)back((H2.1)/2)cuboid([Ow,T,H],rounding=Rnd,except=TOP+FRONT,anchor=[0,0,1] ) // small holder
tag("remove")attach(TOP+CENTER)fwd(2H-Ol+T)down(T+.25)cuboid([W-2T,3.1T/2,2.0H+.02],anchor=[0,0,1])
#tag("remove")attach(TOP+CENTER)fwd(3.1T/2)up(T+.7)cuboid([W,3.1T/2,2.5H],anchor=[0,0,1]) ;
right(0)fwd(1)up(H)cuboid([2W/3,3.1T/2,3H/3])
screw_hole("1/4-20",l=10,orient=BACK,tolerance="self tap"); }
--
Best regards,
Bob mailto:roosbob@wybatap.com
You'll need to change your screw_hole() call to add thread=true, and either remove the tolerance argument, or set it to 1A, 2A, 3A, 1B, 2B, or 3B.
- Revar
On Feb 20, 2023, at 1:29 AM, Bob Roos roosbob@wybatap.com wrote:
Hello OpenSCAD,
I thought this was supposed to have threads but it is just a hole.
Thanks, Bob Roos
// camera tripod mount
// Bob Roos
// January 14, 2023
include <BOSL2/std.scad> // or screws or threading
include <BOSL2/screws.scad> // or screws or threading
H = 9.5;
W = 34.75;
L = 36;
L1 = 25.5;
A = 45;
T = 1.8;
Oh = 100;
Ow = W+2.25T;
Ol = 3.1T;
Rnd = .75;
Wedge = (L-L1)/2;
// top/sliding part
diff(){
rect_tube(size=[Ow,Ol],h=2H,wall=T,rounding=Rnd,anchor=[0,-1,-1])
attach(TOP+CENTER)fwd(3.1T/2)cuboid([Ow,2.5+H2.0,T],rounding=Rnd,except=TOP+BACK,anchor=[0,-1,0]) // flat on top
attach(TOP+CENTER)back((H2.1)/2)cuboid([Ow,T,H],rounding=Rnd,except=TOP+FRONT,anchor=[0,0,1] ) // small holder
tag("remove")attach(TOP+CENTER)fwd(2H-Ol+T)down(T+.25)cuboid([W-2T,3.1T/2,2.0H+.02],anchor=[0,0,1])
#tag("remove")attach(TOP+CENTER)fwd(3.1T/2)up(T+.7)cuboid([W,3.1T/2,2.5H],anchor=[0,0,1]) ;
right(0)fwd(1)up(H)cuboid([2W/3,3.1T/2,3H/3])
screw_hole("1/4-20",l=10,orient=BACK,tolerance="self tap"); }
--
Best regards,
Bob mailto:roosbob@wybatap.com
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The "self tap" tolerance is for an unthreaded hole sized so that the screw
acts as its own tap and cuts the threads as you insert it. And I think
only the B tolerances are valid for holes, so if you want to specify a
tolerance I believe it needs to be 1B, 2B or 3B.
On Mon, Feb 20, 2023 at 4:29 AM Bob Roos roosbob@wybatap.com wrote:
Hello OpenSCAD,
I thought this was supposed to have threads but it is just a hole.
Thanks, Bob Roos
// camera tripod mount
// Bob Roos
// January 14, 2023
include <BOSL2/std.scad> // or screws or threading
include <BOSL2/screws.scad> // or screws or threading
H = 9.5;
W = 34.75;
L = 36;
L1 = 25.5;
A = 45;
T = 1.8;
Oh = 100;
Ow = W+2.25T;
Ol = 3.1T;
Rnd = .75;
Wedge = (L-L1)/2;
// top/sliding part
diff(){
rect_tube(size=[Ow,Ol],h=2H,wall=T,rounding=Rnd,anchor=[0,-1,-1])
attach(TOP+CENTER)fwd(3.1T/2)cuboid([Ow,2.5+H2.0,T],rounding=Rnd,except=TOP+BACK,anchor=[0,-1,0])
// flat on top
attach(TOP+CENTER)back((H2.1)/2)cuboid([Ow,T,H],rounding=Rnd,except=TOP+FRONT,anchor=[0,0,1]
) // small holder
tag("remove")attach(TOP+CENTER)fwd(2H-Ol+T)down(T+.25)cuboid([W-2T,3.1T/2,2.0H+.02],anchor=[0,0,1])
#tag("remove")attach(TOP+CENTER)fwd(3.1T/2)up(T+.7)cuboid([W,3.1T/2,2.5H],anchor=[0,0,1])
;
right(0)fwd(1)up(H)cuboid([2W/3,3.1T/2,3H/3])
screw_hole("1/4-20",l=10,orient=BACK,tolerance="self tap"); }
--
Best regards,
Bob mailto:roosbob@wybatap.com
OpenSCAD mailing list
To unsubscribe send an email to discuss-leave@lists.openscad.org
Hi Adrian,
Thank you. for clarifying that
I really appreciate this help.
Bob Roos
Tuesday, February 21, 2023, 7:47:28 AM, you wrote:
The "self tap" tolerance is for an unthreaded hole sized so that the screw acts as its own tap and cuts the threads as you insert it. And I think only the B tolerances are valid for holes, so if you want to specify a tolerance I believe it needs to be 1B, 2B or 3B.
On Mon, Feb 20, 2023 at 4:29 AM Bob Roos roosbob@wybatap.com wrote:
Hello OpenSCAD,
I thought this was supposed to have threads but it is just a hole.
Thanks, Bob Roos
// camera tripod mount
// Bob Roos
// January 14, 2023
include <BOSL2/std.scad> // or screws or threading
include <BOSL2/screws.scad> // or screws or threading
H = 9.5;
W = 34.75;
L = 36;
L1 = 25.5;
A = 45;
T = 1.8;
Oh = 100;
Ow = W+2.25T;
Ol = 3.1T;
Rnd = .75;
Wedge = (L-L1)/2;
// top/sliding part
diff(){
rect_tube(size=[Ow,Ol],h=2H,wall=T,rounding=Rnd,anchor=[0,-1,-1])
attach(TOP+CENTER)fwd(3.1T/2)cuboid([Ow,2.5+H2.0,T],rounding=Rnd,except=TOP+BACK,anchor=[0,-1,0]) // flat on top
attach(TOP+CENTER)back((H2.1)/2)cuboid([Ow,T,H],rounding=Rnd,except=TOP+FRONT,anchor=[0,0,1] ) // small holder
tag("remove")attach(TOP+CENTER)fwd(2H-Ol+T)down(T+.25)cuboid([W-2T,3.1T/2,2.0H+.02],anchor=[0,0,1])
#tag("remove")attach(TOP+CENTER)fwd(3.1T/2)up(T+.7)cuboid([W,3.1T/2,2.5H],anchor=[0,0,1]) ;
right(0)fwd(1)up(H)cuboid([2W/3,3.1T/2,3H/3])
screw_hole("1/4-20",l=10,orient=BACK,tolerance="self tap"); }
--
have Fun,
Bob mailto:roosbob@wybatap.com