Designing shock absorber.

[sanket223.patil]

Hello , 

I am designing a shock absorber . I have an downloaded one . But I want to make my self . 

But dont know how to make spring , see the image provided . I know there is a function of coil , But the spring I am making has different diameter in middle and at ends its different . So how to make it .

[davebYYPCU · Accepted solution]

You need some construction bodies, 

front profile like an oval, is Patch > Revolve, 

Then Patch > Sweep with Twist, a horizontal line, from axis to. Wider than oval, with pitch of twist.

Split Revolve Body with pitched twisted body.

Create 3d Sketch, Project > Include 3d Geometry, select Split body edge off the Revolve Body.

Hide Patch Bodies.

Create Model > Sweep, steel spring.  

There is a YouTube video to cut the spring in one plane and Revolve joints on each segment, for a working Spring.

Might help...

[sanket223.patil]

Thanks @davebYYPCU . 

Can you provide screencast , It will help me to understand more . 

[melvinbrian3d]

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@davebYYPCU wrote:

You need some construction bodies, 

front profile like an oval, is Patch > Revolve, 

Then Patch > Sweep with Twist, a horizontal line, from axis to. Wider than oval, with pitch of twist.

Split Revolve Body with pitched twisted body.

Create 3d Sketch, Project > Include 3d Geometry, select Split body edge off the Revolve Body.

Hide Patch Bodies.

Create Model > Sweep, steel spring.  

There is a YouTube video to cut the spring in one plane and Revolve joints on each segment, for a working Spring.

Might help...

---

that's exactly... should work... i made a few springs weeks ago

[sanket223.patil]

Hello @melvinbrian3d

Can you share a screencast with me .

I had also made springs , but cant figure out that diff. diameter thing .

[melvinbrian3d]

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@sanket223.patil wrote:

Hello @melvinbrian3d

Can you share a screencast with me .

I had also made springs , but cant figure out that diff. diameter thing .

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ok my friend... let me finish something, and i will share with you.

[TheCADWhisperer · Accepted solution]

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@melvinbrian3d wrote:

.....ok my friend... let me finish something, and i will share with you.

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The diameter AND the Pitch varies, be sure that your example includes the variable pitch to be a valid response to the Design Intent.

[melvinbrian3d]

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@TheCADWhisperer wrote:

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@melvinbrian3d wrote:

.....ok my friend... let me finish something, and i will share with you.

---

The diameter AND the Pitch varies, be sure that your example includes the variable pitch to be a valid response to the Design Intent.

---

thanks for the advice... but for now i just made with differnt Diameter... ... @sanket223.patil tell if this work for you. i'm uploading the screencast.

[melvinbrian3d · Accepted solution]

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@sanket223.patil wrote:

Hello , 

I am designing a shock absorber . I have an downloaded one . But I want to make my self . 

But dont know how to make spring , see the image provided . I know there is a function of coil , But the spring I am making has different diameter in middle and at ends its different . So how to make it .

---

here is my screencast as the post said... with different Diameter

[sanket223.patil]

Thanks Alot @davebYYPCU @TheCADWhisperer @melvinbrian3d 

I will try this out 🙂