Hello OpenSCAD,
The code below just barely displays. But if you remove the "*" from one more line it becomes non responsive.
But if you use a text editor and * out all the screws you can open the file in OpenScad remove the * character and press F6 and get a rendering. The problem is the F5 process.
The placement of the screws was pretty much by visual and not mathematical.
// string trimmer wheel stand
// Bob Roos
// May 2, 2022
include <BOSL2/std.scad>
include <BOSL2/screws.scad>
$fn = 24;
D = 25;
L = 100;
L2 = 80;
T = 1.6;
A = 26;
F2=5T;
F1 = -F2/2;
difference(){
union(){
cylinder(h=L,d=D+2T,center=true); // main tube
rotate([-64,0,0])translate([0,0,L2/2])cylinder(h=L2,d=D+2T,center=true); // side tube
translate([0,-D/2,0])rotate([90,0,0])prismoid([5T,T+L],[5T,2(T+L)/3],4T); // left main
translate([0,D/2+4T,0])rotate([90,0,0])prismoid([5T,2(T+L)/3],[5T,T+L],4T); // right main
rotate([-64,0,0])translate([0,-D/2,L2*.60])rotate([90,0,0])prismoid([5T,.67L-T],[5T,2(.67L-T)/3],4T); // top side
rotate([-64,0,0])translate([0,+D/2+4T,L2.475])rotate([90,0,0])prismoid([5T,2(.8L-T)/3],[5T,.8L-T],4T); // bottom side
}
cylinder(h=L+.01,d=D,center=true); // remove the middle to make room for shaft
rotate([-64,0,0])translate([0,0,L/2])cylinder(h=L+.01,d=D,center=true); // remove the middle to make room for shaft
cube([1,2L+D+8T,L+4T],center=true); // make into 2 halves
* translate([F1,-D/2-2T,2L/8])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
* translate([F1,-D/2-2T,-2L/8])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
* translate([F1,D/2+2T,2L/8])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
* translate([F1,D/2+2T,-2L/8])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
translate([F1,D+2T,1.25D])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
translate([F1,D+2T,-.04L])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
translate([F1,D1.75,1.55D])rotate([0,90,0]) screw("#6-32",head="flat",shank=2T,length=F2);
translate([F1,D2.5,.13L])rotate([0,90,0]) screw("#6-32",head="flat",shank=2*T,length=F2);
}
--
Best regards,
Bob mailto:roosbob@wybatap.com
Differencing complex things like screws is a big burden on the
preview display logic.
It should help using
... render() screw("#6-32",head="flat",shank=2*T,length=F2);
instead. This resolves the mesh for the screw() even in preview
mode which should help quite a bit at the expense of an initial
delay on the first preview. After that the screw() geometry is
cached.
ciao,
Torsten.
Hi Torsten,
It was a HUGE hlep. Thank you!
It was also a help. ;)
Thursday, May 5, 2022, 4:19:15 AM, you wrote:
Differencing complex things like screws is a big burden on the
preview display logic.
It should help using
... render() screw("#6-32",head="flat",shank=2*T,length=F2);
instead. This resolves the mesh for the screw() even in preview
mode which should help quite a bit at the expense of an initial
delay on the first preview. After that the screw() geometry is
cached.
ciao,
Torsten.
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--
have Fun,
Bob mailto:roosbob@wybatap.com