flat solid spiral shape
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flat solid spiral shape
Hello guys,
I'am running into trouble with creating a spiral shape with a "flat" surface, the black part rotates and inside are 3 plungers with a spring beneath that presses them against the upper part so when rotating they are pressed downwards, the upper part with the helix must be flat but I don't know how... I tried different approaches and with a helix and a sweep I get the wanted result partly but I can't create a half clockwise helix and an anti-clockwise one in one path.
creating a subtractive sweep along the "cut" path of attached file didn't work out as wanted also.
I'am running into trouble with creating a spiral shape with a "flat" surface, the black part rotates and inside are 3 plungers with a spring beneath that presses them against the upper part so when rotating they are pressed downwards, the upper part with the helix must be flat but I don't know how... I tried different approaches and with a helix and a sweep I get the wanted result partly but I can't create a half clockwise helix and an anti-clockwise one in one path.
creating a subtractive sweep along the "cut" path of attached file didn't work out as wanted also.
- Attachments
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- stuurpomp.FCStd
- (341.9 KiB) Downloaded 26 times
Re: flat solid spiral shape
My understanding of what you want is different: If you want a helix with a flattened end you can try macro FCSpring_Helix_Variable (left in the image) or Curves workbench's compression spring (right).
- Attachments
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- Snip macro screenshot-9a4e8b.png (4.91 KiB) Viewed 1360 times
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- papyblaise
- Veteran
- Posts: 7872
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: flat solid spiral shape
Hello
I have to redo trukplaat (35mm height , 65mm for the angle) and cut it in half (green)
I draw 3 new sketches for the profil of came (1 or 2 arn't work)
Do a sweep betwen this 3 sketches to use the half side of your trukplaat as path in Partwb (impossible to use soustract-pipe in Partdesign) and do miror , add booleen , refine =true
I have to redo trukplaat (35mm height , 65mm for the angle) and cut it in half (green)
I draw 3 new sketches for the profil of came (1 or 2 arn't work)
Do a sweep betwen this 3 sketches to use the half side of your trukplaat as path in Partwb (impossible to use soustract-pipe in Partdesign) and do miror , add booleen , refine =true
- Attachments
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- pompe a piston.FCStd
- (380.85 KiB) Downloaded 40 times
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- pumpe à pistons.PNG (26.52 KiB) Viewed 1356 times
Re: flat solid spiral shape
Hello guys, thanks for all the help!
I tried a lot off things you pointed out to me and also a macro to wrap a sketch around a cylinder but whatever I do no way I end up with a 100% result (yet)
The best results so far are with lofting several sketches along a path like papyblaise pointed out but even then not completely:
I tried a lot off things you pointed out to me and also a macro to wrap a sketch around a cylinder but whatever I do no way I end up with a 100% result (yet)
The best results so far are with lofting several sketches along a path like papyblaise pointed out but even then not completely:
- Attachments
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- wobble-plate.FCStd
- (61.37 KiB) Downloaded 24 times
- papyblaise
- Veteran
- Posts: 7872
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: flat solid spiral shape
Ok the inside cylinder isn't circular but that come from AdditivePipe who is some time funy
If you soustract a cylinder the came is better looking (maybe)
and whit that your rampe is alway perpendicular and the start and top is flat , not whith an angle if you use a helix
If you soustract a cylinder the came is better looking (maybe)
and whit that your rampe is alway perpendicular and the start and top is flat , not whith an angle if you use a helix
- Attachments
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- pumpe à pistons-1.PNG (26.92 KiB) Viewed 1296 times
Re: flat solid spiral shape
I am not very good with PartDesign WB, so I have not been able to do it with this workflow.
But here is a possible solution : use the angled section of the cylinder (green below), as a sweep path with mode "Binormal" and binormal vector set to (0,0,1)
But here is a possible solution : use the angled section of the cylinder (green below), as a sweep path with mode "Binormal" and binormal vector set to (0,0,1)
- Attachments
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- binormal-sweep.FCStd
- (12.64 KiB) Downloaded 24 times
Re: flat solid spiral shape
Works equivalent in PartDesignbut the vector has to be (0,1,0).
- Attachments
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- Snip macro screenshot-436597.png (75.8 KiB) Viewed 1256 times
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- papyblaise
- Veteran
- Posts: 7872
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: flat solid spiral shape
why what is the differance X , Y , or Z
Re: flat solid spiral shape
make sure the sweep stay on an vector, here the Y axle.