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I'm using Blender's snapping feature to add hex bolts to an object, in edit mode.

I've turned on snapping, Snap with Center, Snap To Face, and Align Rotation to Target. But for some reason the bolts are snapping at odd angles. How can I fix this? Thanks!

enter image description here

Here is the Blender file:

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  • $\begingroup$ Hello are you sure that the Z axis of the bolt is pointing upwards? $\endgroup$
    – moonboots
    Feb 24 at 14:32
  • $\begingroup$ can u pls provide a blend file so we can see all of your settings? thxx $\endgroup$
    – Chris
    Feb 24 at 16:58
  • $\begingroup$ I must be missing something .. in Edit Mode the bolt-meshes don't have a Z axis to align to? So do it in Object Mode? You can always join the dupes later... if they're Alt D instances, you can use Shift L to select them all for joining. $\endgroup$
    – Robin Betts
    Feb 24 at 17:04
  • $\begingroup$ @Chris Blender file has been uploaded. Thanks! $\endgroup$ Feb 24 at 17:34
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    $\begingroup$ I don't know if it's doable in Edit mode, but you can separate the bolt as another object, put the origin at its bottom, exactly like Alex shows, you'll join the bolt afterwards $\endgroup$
    – moonboots
    Feb 24 at 17:40

2 Answers 2

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Make sure you are in face selection mode so that it aligns according to the face normal

enter image description here

Then press G, then B to select the snap base

enter image description here

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  • $\begingroup$ Thanks for your help. when I press G, and then B, it does fix the rotation, but then the bolt doesn't move with the mouse. I will edit the post and upload the Blender file so that you can take a look. $\endgroup$ Feb 24 at 17:28
  • $\begingroup$ Hi, Alex.. interesting :) How do you handle duplicates? Can you get consistency? So far, this seems to work for me only if the nut is created at the origin of the main mesh, and duplicated from there. So far, for me, that behaviour seems lucky, and the orientation seems generally 'undefined' in Edit Mode, unless.. you've found a way to control it? $\endgroup$
    – Robin Betts
    Feb 24 at 17:44
  • $\begingroup$ @RyanKingArt Not sure why it does this, when I do the steps with your file the bolt does move $\endgroup$
    – Alex
    Feb 24 at 18:38
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    $\begingroup$ @RobinBetts Doing it in edit mode is indeed not consistent since the face normal directions are pretty arbitrary. Sometimes it rotates the object by 90 degrees, sometimes its not perfectly aligned etc. Best way is still to do it in object mode $\endgroup$
    – Alex
    Feb 24 at 18:46
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The best way to fix the issue seems to be to separate the bolts into there own object. Then in object mode, place the bolts on the mesh. Once you are finished placing the bolts, select all the bolt objects, then the main object, and press Control J, to join them together into the same object.

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