bevel=6;  //  greater than 2.

I could not see any chamfer or fillet here. Anything missing? On Tue, 14 Jan 2025 at 18:04, Raymond West via Discuss < discuss@lists.openscad.org> wrote: > This gives a flat fillet (which I've called a bevel - depends if you think > it is internal or external, draughtsman or carpenter) > > > module tube(d){ > linear_extrude(100) > difference(){ > circle(d=d); > circle (d=d-0.0001); > }; > } > > hull(){ > intersection(){ > tube(30); //upright tube > translate([-0,0,50]) > rotate([0,90,0]) > tube(20+bevel); > } > intersection(){ > tube(30+bevel); // side tube > translate([-0,0,50]) > rotate([0,90,0]) > tube(20); > } > } > > $fn=100; > cylinder(d=30,h=100); > translate([-0,0,50]) > rotate([0,90,0]) > cylinder(d=20,h=50); > > > bevel=6; // greater than 2. >

On 1/14/2025 6:26 AM, Jon Bondy via Discuss wrote: > > Perhaps I am mistaken, but I thought that fillets were possible in > many cases using the BOSL2 library. > There are several techniques for fillets and chamfers/roundoffs.  They are just rarely easy.  BOSL2 does offer a lot of options, which it does the hard way (by constructing polyhedra) and then hides the difficulty.

Hiding the difficulty.  That's what I want! On 1/14/2025 10:41 AM, Jordan Brown wrote: > On 1/14/2025 6:26 AM, Jon Bondy via Discuss wrote: >> >> Perhaps I am mistaken, but I thought that fillets were possible in >> many cases using the BOSL2 library. >> > > There are several techniques for fillets and chamfers/roundoffs. They > are just rarely easy.  BOSL2 does offer a lot of options, which it > does the hard way (by constructing polyhedra) and then hides the > difficulty. >

    circle (d=d-0.0001);

On Tue, Jan 14, 2025 at 6:45 AM Sanjeev Prabhakar via Discuss < discuss@lists.openscad.org> wrote: > I could not see any chamfer or fillet here. > Anything missing? > > On Tue, 14 Jan 2025 at 18:04, Raymond West via Discuss < > discuss@lists.openscad.org> wrote: > >> This gives a flat fillet (which I've called a bevel - depends if you >> think it is internal or external, draughtsman or carpenter) >> >> … > circle (d=d-0.0001); >> > … That inset is too big for my copy of OpenSCAD (version 2024.03.01, macOS). Changing it to circle (d=d-0.01); works.