Does one of the Fusion360 user know how to get the groove into this coupling? I don’t want use an already done part.
https://youtu.be/YGn5kq3lEn0 that might help you out
Or maybe that’s even better
Do you mean the grooves around it? In the center of the length basically?
Two easy ways, one way easy than other.
First way, draw the cross section of the part, then revolve around the center axis. Quick and easy.
Second way I have used also.
Make offset plane from the end, the distance of the first groove. Draw two circles there on the plane, extrude them the width of one groove. Then pattern the rest of the grooves from the first.
Honestly, If you drawing it from scratch, the fist easy is easiest, less steps.
There’s few other ways to
Are those grooves helical, like a thread, or a series of individual grooves? To me looks like a series of grooves not connected to each other. But hard to tell from the model and angle
@brian_alley if you watch the first video it says stepper coupler. And it shows a helical cut. But since I don’t use those couplers I can’t tell for sure.
It’s a helical groove. These couplers are very similar to a screw or bolt with really deep threads. Most 3d modeling software will do a helical cut - model the part as solid, sketch the shape you need for the groove profile, and then select helical cut (you will need to define the pitch).
@Matthias_Peschek
Just can’t tell from the picture. I haven’t watched the video linked.
Yes it’s helical (the actual flex in flex coupling) I will give it a try thanks y’all!
There is also this option…
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You can do a helical cut as other have said.
If you are ok with downloading parts, McMaster Carr, a warehouse for mechanical parts, has very good drawings of most of their parts!
I have accomplished the task as it is shown in one of the videos above, but I am not sure how to move the whole helix up and down now.
That is not a groove. It is a cut all the way through. That part is meant to be a sacrificial part when turning the rod might otherwise break things. It can also compensate for misaligned rods.
@NathanielStenzel you are both right and wrong - it is a groove that is cut all the way through to the hole passing through the part. Actually it is a very thin strip that is quite long (very flexible) and wrapped around a hollow core. These differences are only semantic, it’s all the same thing. The function is to allow two shafts that are not perfectly aligned to be connected without placing undue stresses on bearings, shafts, or mounts.
@Alan_Thomason a “groove” does not pass all the way through.
So how to move the groove/spring/thing now?
@Daniel_Stauffer move it how? I don’t understand.
I can change the height of the groove as a while and the height of a segment, but I can’t move the whole thing
@Daniel_Stauffer this a very short video of manipulating a helical cut in a coupler.
Try Googling “How to make helical cut in Fusion 360” to see more examples. I have used several CAD programs; but, I have only used Fusion 360 a small amount a year ago. I can help with concepts of how to model things, but I can’t provide step-by-step instructions for Fusion 360.