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Is there a way in edit mode to lock tweaks to the desired axis permanently? I'd like to tweak a couple of vertices consecutively without pressing "y" or whatever all the time invoking the tweak (grab, or simple grab after selecting the vert).

Thank you,

Mihály

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  • $\begingroup$ I had this exact thought today, none of the answers satisfy my desire to have a toggle. $\endgroup$
    – Enetheru
    Commented Dec 2, 2018 at 11:26

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You could setup a specific hotkey for this.

In the User Preferences > Input > 3D View add a new operator transform.translate assign whichever available key combination you want, then in the options below tick Constraint > Y

Whenever you press that key combination it will automatically invoke the move command constrained to the desired axis.

If you don't want a different hotkey you can set this temporarily or permanently in the existing G hotkey.

You may also use the Move tool from the toolbar and use the Transfrom gizmo by hovering the desired axis effectively constraining to that vector.

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  • $\begingroup$ @MihályVarju if this answer is great, then consider to vote for it or select as the best answer. :) $\endgroup$
    – Leon Cheung
    Commented Jun 15, 2016 at 0:44
  • $\begingroup$ @Duarte where can I find the list of operator admitted like "transform.translate" for Blender? $\endgroup$
    – ro_orco
    Commented Nov 30, 2021 at 9:36
  • $\begingroup$ The Python console provides autocomplete. You can look at the available operators for any context in the keymap list, or you can look in the documentation or you can see what is used in the UI from the tooltips $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented Nov 30, 2021 at 10:06
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If you're using hotkeys to translate your vertices, the fastest way to work is to use the middle-click shortcut:

  1. Press G to begin your grab operation and begin moving your selection roughly along the axis you want to lock to.
  2. Now, middle-click and you'll be locked to that axis.

Alternatively, you can hold the middle mouse button down (again, while still in the Grab operation) and you'll see lock guides in the 3D View. While still holding the middle mouse button, you can drag your selection to lock to one of these axes. When you release the middle mouse button, the lock remains in place.

Both methods also work with the right-click-and-drag "tweak mode" way of initiating the Grab operator.

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  • $\begingroup$ Thank you Fweeb. But my problem is when I want to edit a new vert, each time I'm selecting a new vert I have to go trough the steps. It would be great if Blender could retain the last lock. This way the only thing I have to do is to select my newly selected vert and grab. If there were any icon representing the x - y - z axes, and if you could push them, this would restrain all translation, tweak to the selected axis (axes), until you disable these. $\endgroup$
    – Mihály Varju
    Commented Jun 10, 2016 at 14:09
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If you don't want to press any buttons to make the transformations just use the manipulator tool. Please see the manual for more details. enter image description here

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I don't know if I can help anyone because the question is very old but I know what you mean and you can do it easily in the N menu by pressing the lock right next to the transformation values and the axis will be locked until you unlock it.enter image description here

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    $\begingroup$ The questions ask to lock movement in edit mode and not object mode. $\endgroup$
    – Manav Garg
    Commented Aug 22, 2021 at 13:39

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