The knob looks good, but it's not knurled. Knurling is a fairly fine texture to provide grip, like what Ray posted up above. You've done something different (better) by creating the rounded star shape. (I'm not sure if there's a name for that shape.) McMaster has a similar knob they refer to as having "seven arms" and they never name the shape of it. I wonder if there's a reason for choosing odd numbers because I think I've also seen 5 and 7 but never 6. Four does also show up. With regards to pointy hedgehogs, I think my daughter *liked* that they were dangerously pointy. (She was around age 15, not an age where this was a concern.) In any case, the hedgehog obsession has long since passed. On Sat, Dec 14, 2024 at 10:14 AM Thomas Richter via Discuss < discuss@lists.openscad.org> wrote: > Thanks to the help of all of you, I came up with this (dosen't look that > sharp). Number and size of knurls and notches can be configured as well as > height, diameter, screw head size. Future versions of the library will > feature a rounded top, bottom spacers, and a release mechanism to let the > knob turn freely while the screw remains tightened. > > > > > > Am 14.12.2024 um 15:16 schrieb Adrian Mariano via Discuss < > discuss@lists.openscad.org>: > > > > I don't know about the idea that you can just make it sharp. My > daughter 3d printed hedgehogs with tetrahedral spines and those suckers are > SHARP. Very uncomfortable to hold without care. > > > > If you want more knurling options, you might find BOSL2 textures of > interest: > > > > https://github.com/BelfrySCAD/BOSL2/wiki/skin.scad#function-texture > > > > You can use the textures with the BOSL2 module cyl() which is an > extension of the standard cylinder(). > > > > _______________________________________________ > > OpenSCAD mailing list > > To unsubscribe send an email to discuss-leave@lists.openscad.org > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >

> Am 14.12.2024 um 18:14 schrieb Adrian Mariano via Discuss <discuss@lists.openscad.org>: > > The knob looks good, but it's not knurled. Knurling is a fairly fine texture to provide grip, like what Ray posted up above. You've done something different (better) by creating the rounded star shape. (I'm not sure if there's a name for that shape.) McMaster has a similar knob they refer to as having "seven arms" and they never name the shape of it. I wonder if there's a reason for choosing odd numbers because I think I've also seen 5 and 7 but never 6. Four does also show up. I usually also make the knobs with an odd number of "arms" and don't know why. Only if the diameter is too small to give enough space for the lock (the slot on top and cylindrical holes) I use an even number because the lock is then aligned with two arms. As I already wrote, I know about the meaning of knurling (I finished an apprenticeship as a metal worker decades ago and took mechanical engineering classes during my computer science studies) but I never found a good name for the "knurls". > On Sat, Dec 14, 2024 at 10:14 AM Thomas Richter via Discuss <discuss@lists.openscad.org> wrote: > Thanks to the help of all of you, I came up with this (dosen't look that sharp). Number and size of knurls and notches can be configured as well as height, diameter, screw head size. Future versions of the library will feature a rounded top, bottom spacers, and a release mechanism to let the knob turn freely while the screw remains tightened. > > > > > > Am 14.12.2024 um 15:16 schrieb Adrian Mariano via Discuss <discuss@lists.openscad.org>: > > > > I don't know about the idea that you can just make it sharp. My daughter 3d printed hedgehogs with tetrahedral spines and those suckers are SHARP. Very uncomfortable to hold without care. > > > > If you want more knurling options, you might find BOSL2 textures of interest: > > > > https://github.com/BelfrySCAD/BOSL2/wiki/skin.scad#function-texture > > > > You can use the textures with the BOSL2 module cyl() which is an extension of the standard cylinder(). > > > > _______________________________________________ > > OpenSCAD mailing list > > To unsubscribe send an email to discuss-leave@lists.openscad.org > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org