All I want to do is make a simple spline IK. Apparently this is impossible because in order to construct one, I very expectedly have to move the curve handles. Moving the curve vertices automatically misaligns the handles so that they don't point towards each other to keep a straight line, even though they should.

I tried all kinds of selection to cursor and snapping techniques, none of which work because the lengths of the handles are no longer at their default value. How can I get blender to do what it is supposed to and construct a simple, straight segment of merely two handles pointed towards each other at their default length?


1 Answer 1


Edit Mode:

  • A Select all
  • V V Convert control points to Vector

With just 2 points, this will produce the straight line I think you're looking for? I do this to every Bezier curve on creation.. it just helps get off to a known, 'neutral' start.

After that, you might want to W S subdivide, (or, in 2.8 right click > Subdivide) to make more in-line vertices.

  • $\begingroup$ That didn't work. Luckily I coincidentally found a button "recalculate normals" that did it. $\endgroup$
    – Vane Voe
    Commented Mar 26, 2019 at 23:54
  • 2
    $\begingroup$ I must be missing a difference between your situation and mine?.. tried in both 279 and 28.. works for me.. recalc straightens, but doesn't equalize handles $\endgroup$
    – Robin Betts
    Commented Mar 27, 2019 at 0:03

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