Greetings all; I can't make this work: in module making the sub call translate([.25,0,-15])color("pink")yunion_screws(0); in module yunion_screws: module yunion_screws(n) { ysep=16; //xsep= spacing on sides xsep=14.5; //ysep=spacing between sides slen=20; //length of screws if(n==0)sdia=1.85; // dia of screw for base part if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b just barely a slip fit Its desired to make the head hole big enough to strip the trash out of the hole, while the part it screws to is self threading, its a 2mm special screw for plastic. Obviusly I'm doing sth wrong but what Thank you for any insight. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis

I think your paste got truncated; your yunion_screws() module looks incomplete. In any case, with the bits you HAVE pasted, it may be that you're looking for, assuming 'n' will only ever be 0 or 1: sdia = (n==0) ? 1.85 : 2.4; On Fri, Feb 9, 2024 at 3:59 PM gene heskett via Discuss < discuss@lists.openscad.org> wrote: > Greetings all; > > I can't make this work: > in module making the sub call > translate([.25,0,-15])color("pink")yunion_screws(0); > in module yunion_screws: > module yunion_screws(n) > { > ysep=16; //xsep= spacing on sides > xsep=14.5; //ysep=spacing between sides > slen=20; //length of screws > if(n==0)sdia=1.85; // dia of screw for base part > if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b just > barely a slip fit > > Its desired to make the head hole big enough to strip the trash out of > the hole, while the part it screws to is self threading, its a 2mm > special screw for plastic. Obviusly I'm doing sth wrong but what > > Thank you for any insight. > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org > -- - Jon Gilbert jong@jong.org / jgilbertsjc@gmail.com

 Greetings all;

 I can't make this work:
 in module making the sub call
 translate([.25,0,-15])color("pink")yunion_screws(0);
 in module yunion_screws:
 module yunion_screws(n)
 {
       ysep=16; //xsep= spacing on sides
       xsep=14.5; //ysep=spacing between sides
       slen=20; //length of screws
       if(n==0)sdia=1.85; // dia of screw for base part
       if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b
 just
 barely a slip fit

 Its desired to make the head hole big enough to strip the trash out of
 the hole, while the part it screws to is self threading, its a 2mm
 special screw for plastic. Obviusly I'm doing sth wrong but what

 Thank you for any insight.

 Cheers, Gene Heskett, CET.
 -- 
 "There are four boxes to be used in defense of liberty:
    soap, ballot, jury, and ammo. Please use in that order."
 -Ed Howdershelt (Author, 1940)
 If we desire respect for the law, we must first make the law
 respectable.
    - Louis D. Brandeis
 _______________________________________________
 OpenSCAD mailing list
 To unsubscribe send an email to discuss-leave@lists.openscad.org
 <mailto:discuss-leave@lists.openscad.org>

On 2/9/24 19:04, Jonathan Gilbert via Discuss wrote: > I think your paste got truncated; your yunion_screws() module looks > incomplete. > > In any case, with the bits you HAVE pasted, it may be that you're > looking for, assuming 'n' will only ever be 0 or 1: > > sdia = (n==0) ? 1.85 : 2.4; > So my dirct approach is bass ackwards, and this works as advertised. ing Thank you Jonathan Gilbert, the printer will be warm up shortly. > > > On Fri, Feb 9, 2024 at 3:59 PM gene heskett via Discuss > <discuss@lists.openscad.org <mailto:discuss@lists.openscad.org>> wrote: > > Greetings all; > > I can't make this work: > in module making the sub call > translate([.25,0,-15])color("pink")yunion_screws(0); > in module yunion_screws: > module yunion_screws(n) > { >      ysep=16; //xsep= spacing on sides >      xsep=14.5; //ysep=spacing between sides >      slen=20; //length of screws >      if(n==0)sdia=1.85; // dia of screw for base part >      if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b > just > barely a slip fit > > Its desired to make the head hole big enough to strip the trash out of > the hole, while the part it screws to is self threading, its a 2mm > special screw for plastic. Obviusly I'm doing sth wrong but what > > Thank you for any insight. > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: >   soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law > respectable. >   - Louis D. Brandeis > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org > <mailto:discuss-leave@lists.openscad.org> > > > > -- > - Jon Gilbert > jong@jong.org <mailto:jong@jong.org> / jgilbertsjc@gmail.com > <mailto:jgilbertsjc@gmail.com> > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis

       if(n==0)sdia=1.85; // dia of screw for base part
       if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b

Roger. 

 Greetings all;

 I can't make this work:
 in module making the sub call
 translate([.25,0,-15])color("pink")yunion_screws(0);
 in module yunion_screws:
 module yunion_screws(n)
 {
       ysep=16; //xsep= spacing on sides
       xsep=14.5; //ysep=spacing between sides
 just
 barely a slip fit

 Its desired to make the head hole big enough to strip the trash out of
 the hole, while the part it screws to is self threading, its a 2mm
 special screw for plastic. Obviusly I'm doing sth wrong but what

 Thank you for any insight.

 Cheers, Gene Heskett, CET.
 --     "There are four boxes to be used in defense of liberty:
    soap, ballot, jury, and ammo. Please use in that order."
 -Ed Howdershelt (Author, 1940)
 If we desire respect for the law, we must first make the law
 respectable.
    - Louis D. Brandeis
 _______________________________________________
 OpenSCAD mailing list
 To unsubscribe send an email to discuss-leave@lists.openscad.org
 <mailto:discuss-leave@lists.openscad.org>

On Fri, Feb 09, 2024 at 07:56:26PM -0500, gene heskett via Discuss wrote: > >      if(n==0)sdia=1.85; // dia of screw for base part > >      if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b > On 2/9/24 19:04, Jonathan Gilbert via Discuss wrote: > > sdia = (n==0) ? 1.85 : 2.4; > So my dirct approach is bass ackwards, and this works as advertised. > Thank you Jonathan Gilbert, the printer will be warm up shortly. Just giving a working snippet doesn't help in the long run if you don't explain why it doesn't work. The scope of the variable "sdia" ... if(n==0) { sdia=1.85; ... } ... is exaclty the body of the "if" statement. A new sdia variable is created. If there might be an sdia variable available outside of the if, then that variable is not affected in any way by the assingment, and that variable is no longer available inside the if statement. Your shortening of the body of the if, leaving out the braces and not putting anything else in the body of the if... makes that creation and destruction of the new sdia variable a no-op. Roger. > > > > > > On Fri, Feb 9, 2024 at 3:59 PM gene heskett via Discuss > > <discuss@lists.openscad.org <mailto:discuss@lists.openscad.org>> wrote: > > > > Greetings all; > > > > I can't make this work: > > in module making the sub call > > translate([.25,0,-15])color("pink")yunion_screws(0); > > in module yunion_screws: > > module yunion_screws(n) > > { > >      ysep=16; //xsep= spacing on sides > >      xsep=14.5; //ysep=spacing between sides > > just > > barely a slip fit > > > > Its desired to make the head hole big enough to strip the trash out of > > the hole, while the part it screws to is self threading, its a 2mm > > special screw for plastic. Obviusly I'm doing sth wrong but what > > > > Thank you for any insight. > > > > Cheers, Gene Heskett, CET. > > -- "There are four boxes to be used in defense of liberty: > >   soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author, 1940) > > If we desire respect for the law, we must first make the law > > respectable. > >   - Louis D. Brandeis > > _______________________________________________ > > OpenSCAD mailing list > > To unsubscribe send an email to discuss-leave@lists.openscad.org > > <mailto:discuss-leave@lists.openscad.org> > > > > > > > > -- > > - Jon Gilbert > > jong@jong.org <mailto:jong@jong.org> / jgilbertsjc@gmail.com > > <mailto:jgilbertsjc@gmail.com> > > > > _______________________________________________ > > OpenSCAD mailing list > > To unsubscribe send an email to discuss-leave@lists.openscad.org > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org -- ** R.E.Wolff@BitWizard.nl ** https://www.BitWizard.nl/ ** +31-15-2049110 ** ** Delftechpark 11 2628 XJ Delft, The Netherlands. KVK: 27239233 ** f equals m times a. When your f is steady, and your m is going down your a is going up. -- Chris Hadfield about flying up the space shuttle.

        if(n==0)sdia=1.85; // dia of screw for base part
        if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b

Roger.

On 2/12/24 04:40, Rogier Wolff wrote: > On Fri, Feb 09, 2024 at 07:56:26PM -0500, gene heskett via Discuss wrote: > >>>      if(n==0)sdia=1.85; // dia of screw for base part >>>      if(n==1)sdia=2.4; // dia of same screw for linear carrier s/b > >> On 2/9/24 19:04, Jonathan Gilbert via Discuss wrote: >>> sdia = (n==0) ? 1.85 : 2.4; > >> So my dirct approach is bass ackwards, and this works as advertised. > >> Thank you Jonathan Gilbert, the printer will be warm up shortly. > > Just giving a working snippet doesn't help in the long run if you > don't explain why it doesn't work. > > The scope of the variable "sdia" ... > if(n==0) { > sdia=1.85; > ... > } > 1. It was not previously known in the program 2. Its part of an almost 1300 LOC file, covering most of the mods being made to a bigger printer I'm building out of an $1100 tronxy, that came with a busted marlin, and never succesfully printed anything. tronxy's support is a vast wasteland, so I'm using the frame as raw materiel to build a real printer. Fur instance, its a corexy, but two weeks ago I found all the flying weight parts were 90% solid steel with the X transport bar alone weighing about a pound. obvioudly a candidate to be replaced with a CF tube weighing about an ounce and two linear bearings weighing maybe 4 ounces each, one above the cf tube and another below to get real torsional rigidity. Moving an all printed hotend carriage carrying an orbiter v2, a few grams of prox switch for bed leveling and a triangle labs e3v6 clone with a 70 watt coaxial heater and another gram of a kusba acceleration sensor to calibrate the input shaper. And pestering triangle labs and qidi tech for a carbide nozzle so I can use cf based petg. Even better than industrial diamond as the diamond starts going away from ablation at around 250C. Carbide just grins and keeps on cutting titanium at 700C. Triangle Labs isn't answering the mail, and qidi tech says they are working on it. Later this spring has been mentioned. > ... is exaclty the body of the "if" statement. A new sdia variable is > created. If there might be an sdia variable available outside of the > if, then that variable is not affected in any way by the assingment, > and that variable is no longer available inside the if statement. > Understood. > Your shortening of the body of the if, leaving out the braces and not > putting anything else in the body of the if... makes that creation > and destruction of the new sdia variable a no-op. > > Roger. Thank you. Take care Roger. Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis