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In Blender 2.93 I could enable the Knife tool's angle constraint by pressing C shortcut. By default, it was snapping to 45°. In Blender 3.0 default angle constraint changed to 30°. I know that I can choose the Knife tool in the toolbar, then change the angle constraint amount in the tool settings. But I prefer to use the Knife tool by pressing K shortcut, in that case Knife tool settings are available only through shortcuts, not through UI. So my question is how to make a 45° (or another angle) cut when I called Knife tool through K shortcut?

Cake_Seller Слава Україні
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  • The constraint shortcut has changed from 'C' to 'A' in Blender 3.0 as shown on the bottom status bar. – John Eason Feb 17 '22 at 14:04
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    @JohnEason Since he complained about the angle and not the use of the constraint per se, I guess he had already figured that out ;) – Gordon Brinkmann Feb 17 '22 at 14:15
  • True and the defaults have indeed changed to 30 degree steps from 45 degree, but I'm a bit confused by your "you can set a custom angle for the Knife Tool on the toolbar as well" statement below? I assume you mean the tool options on the 'N' panel? The problem is that you have to have the N panel open and set to 'Tool' before you actually initiate the knife tool! :^( – John Eason Feb 17 '22 at 15:08
  • @JohnEason but it can be also changed from "A" back to "C" in Knife Tool Modal Map – Crantisz Feb 17 '22 at 21:18
  • @Crantisz Which would also mean that you'd have to change the 3.0 'Cut through' shortcut which was originally 'Z' in previous versions! :^) – John Eason Feb 17 '22 at 22:44

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It can be defined in keymap in user preferences:

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(3D View → Mesh → Mesh (Global))

BTW shortcut can be changed from A back to C in Knife Tool Modal Map

Crantisz
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    You were quicker than me ;) @Cake_Seller: By the way, there you can set the snapping for K and right below for Shift+K, so if you want you can have two different default angles. Or actually three different angles, you can set a custom angle for the Knife Tool on the toolbar as well. – Gordon Brinkmann Feb 17 '22 at 14:36