hi everybody, i'm trying to use a hull() to create an elbow: hull() translate([0, -12.5, 4]) // vertical part cylinder(r=1.5, h=20, $fn=30); rotate([90, 0, 45]) // horizontal part translate([-8.9, 5.4, 8]) cylinder(r=1.5, h=20, $fn=30); this isn't working. the two cylinders intersect in a 90deg angle with no smoothing or curving where they meet. these two cylinders "route" a wire that needs to be fed. i need the elbow because when the wire hits the end of the horizontal part, it refuses to go up into the vertical part and simply bends. i'm thinking that the elbow will ensure the wire transitions (smoothly or otherwise) from horizontal to vertical. anybody have any ideas? i googled "elbow scad", and found lots of examples, but not any scad source. thanks in advance for any feedback! yvette

the curly brackets are missing: hull() { translate([0, -12.5, 4]) // vertical part cylinder(r=1.5, h=20, $fn=30); rotate([90, 0, 45]) // horizontal part translate([-8.9, 5.4, 8]) cylinder(r=1.5, h=20, $fn=30); } -- View this message in context: http://forum.openscad.org/hull-to-create-elbow-not-working-tp11667p11668.html Sent from the OpenSCAD mailing list archive at Nabble.com.

If the missing curly braces aren't just a typo and what you're looking for is more of a fillet type of operator, have a look at this example I came up with a while back: https://github.com/clothbot/ClothBotCreations/blob/master/utilities/fillet.scad Andrew. -- View this message in context: http://forum.openscad.org/hull-to-create-elbow-not-working-tp11667p11669.html Sent from the OpenSCAD mailing list archive at Nabble.com.

On 02/19/2015 10:00 AM, clothbot wrote: > If the missing curly braces aren't just a typo and what you're looking for is > more of a fillet type of operator, have a look at this example I came up > with a while back: > > https://github.com/clothbot/ClothBotCreations/blob/master/utilities/fillet.scad thank you both! yvette

The cylinder meet kinda crucked, so things are a little of :) ​R=5; rc=1.5; x1=[0, -12.5, 4]; translate(x1+[0,0,R+rc]) // vertical part cylinder(r=1.5, h=20, $fn=30); rotate([90, 0, 45]) // horizontal part translate([-8.9, 5.4, 8]+[0,0,R+rc-.7]) cylinder(r=1.5, h=20, $fn=30); module bent(){ translate([0,0,R+rc]) rotate([0,90,0]) translate([0,-R,0]) difference(){ rotate_extrude($fn=60,convexity=4) translate([R,0])circle(rc,$fn=30); translate([0,-2*R,0])cube(4*R,true); translate([-2*R,0,0])cube(4*R,true); } } translate(x1) rotate(45) bent(); 2015-02-19 19:23 GMT+01:00 Yvette S. Hirth, CCP, CDP <yvette@dbtgroup.com>: > On 02/19/2015 10:00 AM, clothbot wrote: > > If the missing curly braces aren't just a typo and what you're looking >> for is >> more of a fillet type of operator, have a look at this example I came up >> with a while back: >> >> https://github.com/clothbot/ClothBotCreations/blob/master/ >> utilities/fillet.scad >> > > thank you both! > yvette > > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org > -- stempeldergeschichte@googlemail.com <karsten@rohrbach.de> P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. P.S. In case my e-mail is shorter than you enjoy: I am currently trying short replies instead of no replies at all. Please let me know, if you like to read more. Enjoy!

I didn't look closely at the rotation and translation code, but I suspected that there was something wrong with that part, not the actual bending part. When removing that code (which could easily be added back in to the entire object), things line up correctly: R=5; rc=1.5; detail=30; translate([0,0,R+rc])// vertical part cylinder(r=rc, h=20, $fn=detail); translate([0,-R,rc]) rotate([90,0,0]) cylinder(r=rc, h=20, $fn=detail); modulebent(){ translate([0,0,R+rc]) rotate([0,90,0]) translate([0,-R,0]) difference(){ rotate_extrude($fn=60,convexity=4) translate([R,0])rotate([0,0,360/detail/2])circle(rc,$fn=detail); translate([0,-2*R,0])cube(4*R,true); translate([-2*R,0,0])cube(4*R,true); } } bent(); - Yona > Peter Falke <mailto:stempeldergeschichte@googlemail.com> > February 19, 2015 at 13:35 > > The cylinder meet kinda crucked, so things are a little of :) > > R=5; > > rc=1.5; > > x1=[0, -12.5, 4]; > > > translate(x1+[0,0,R+rc]) // vertical part > > cylinder(r=1.5, h=20, $fn=30); > > rotate([90, 0, 45]) // horizontal part > > translate([-8.9, 5.4, 8]+[0,0,R+rc-.7]) > > cylinder(r=1.5, h=20, $fn=30); > > > module bent(){ > > translate([0,0,R+rc]) > > rotate([0,90,0]) > > translate([0,-R,0]) > > difference(){ > > rotate_extrude($fn=60,convexity=4) > > translate([R,0])circle(rc,$fn=30); > > translate([0,-2*R,0])cube(4*R,true); > > translate([-2*R,0,0])cube(4*R,true); > > } > > } > > translate(x1) > > rotate(45) > > bent(); > > > > > > -- > stempeldergeschichte@googlemail.com <mailto:karsten@rohrbach.de> > > P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: > Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu > schreiben. > Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. > > P.S. In case my e-mail is shorter than you enjoy: > I am currently trying short replies instead of no replies at all. > Please let me know, if you like to read more. > > Enjoy! > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org

his seem to clear it up. R=5; rc=1.5; x1=[0, -12.5, 4]; translate(x1+[0,0,R+rc]) // vertical part cylinder(r=1.5, h=20, $fn=30); rotate([90, 0, 45]) // horizontal part translate([-8.9, 5.5, 8]+[0,0,R+rc-.7]) cylinder(r=1.5, h=20, $fn=30); module bent(){ translate([0,0,R+rc]) rotate([0,90,0]) translate([0,-R,0]) difference(){ rotate_extrude($fn=60,convexity=4) translate([R,0])circle(rc,$fn=30); translate([0,-2*R,0])cube(4*R,true); translate([-2*R,0,0])cube(4*R,true); } } translate(x1) rotate(44) bent(); -- View this message in context: http://forum.openscad.org/hull-to-create-elbow-not-working-tp11667p15755.html Sent from the OpenSCAD mailing list archive at Nabble.com.