# Neutral phase radius of a 3d bend on 2d drawing

**URL:** <https://discourse.shapr3d.com/t/neutral-phase-radius-of-a-3d-bend-on-2d-drawing/40273>\
**Category:** Modeling Questions\
**Created:** [February 10, 2026, 3:49pm UTC](https://discourse.shapr3d.com/t/neutral-phase-radius-of-a-3d-bend-on-2d-drawing/40273 "2026-02-10T15:49:03Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Moe](https://avatars.discourse-cdn.com/v4/letter/m/ad7895/32.png) [@Moe](https://discourse.shapr3d.com/u/Moe)\
**Post date:** [February 10, 2026, 3:49pm UTC](https://discourse.shapr3d.com/t/neutral-phase-radius-of-a-3d-bend-on-2d-drawing/40273/1 "2026-02-10T15:49:03Z")

</div>

Hi @all,

I created a simple bend with straight lengths on both ends.

Now I want to show the bending radius on the drawing of the neutral phase of the bend. (R630mm)

Unfortunately I cannot draw a middle line of the bend section to add the radi measurement to it.

Are there any possibilities to sort this out?

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/2/e2397d464a72ccaca1406fd7a0dd8f878e612952.png)