Hi,
I'm having trouble filling the space between faces of threads. One of the threads has a larger pitch than the other however they should be in contact throughout the screw.
The faces shaded blue are the ones that need to be in contact.
Hi,
I'm having trouble filling the space between faces of threads. One of the threads has a larger pitch than the other however they should be in contact throughout the screw.
The faces shaded blue are the ones that need to be in contact.
Hello Dragan,.. yeah, for feedscrews,.. you'll need to manually create the paths/guide (3DSketch) to help blend (Boundary/Loft) the transitions between.
Hey Paul, where should I make the guide curves? Would it help if I attached the Part File?
You mean you want something like this?
Yes that is what I need. How did you do this?
I used skilllz.
..looks like Josh has it for you... (was thinking more with helix change and transitions between the flights\height\width)
Yeah... I just noticed that the two that you're trying to join are of different heights. It's an interesting challenge, but possible to make a changing pitch, constantly-tapered thread. This is a fascinating bit of geometry, and Paul may be able to think of a better way to do it. This isn't super-clean, but it shows the approach I was shooting for.
SolidWorks hates that cut-sweep by the way:
Thanks Josh, very helpful!
Retraction... This method does NOT create continuous difference in shape of the thread. For example, if one edge of the thread should be 10mm tall and the other should be 3mm tall at any cross section, this doesn't work. This method uses "twist along path" to change the angle of the cut from the angle shown at the start to the angle shown at the end. However, to keep the thread heights constant the angle has to change faster at the start of the sweep than it does at the end of the sweep. You can't specify a different twist rate at along the sweep path...
The good news is... It's really actually simpler.
Yeah... I just noticed that the two that you're trying to join are of different heights. It's an interesting challenge, but possible to make a changing pitch, constantly-tapered thread. This is a fascinating bit of geometry, and Paul may be able to think of a better way to do it. This isn't super-clean, but it shows the approach I was shooting for.