how can i draw this spring?


Sorry,my english presentation no good.just try my best .
u also can reference link:

  1. Step 1:

    First, u need create boss-extrude

  2. Step 2:

    second, create a helix/ spiral

  3. Step 3:

    on bottom draw a line ,

  4. Step 4:

    for swept surface

  5. Step 5:

    select straight body use the Intersection Curve function

  6. Step 6:

    can get the sketch , see the pic

  7. Step 7:

    can delete body , left straight sketch,
    after tht u need use Composite Curve for integrate

  8. Step 8:

    last the one , can use sweep to complete.

  9. Step 9:



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