Snapping with Custom Transform Orientations in Blender
Why Blender Stack Exchange recommends it
Blender Stack Exchange users link it when someone needs to align movement or snapping to an arbitrary edge or face using a custom transform orientation.
Recommended by 3 people across 3 different months, 2016 to 2019.
What it is
A short Blender tutorial showing how to create a Custom Transform Orientation so vertices can be snapped and moved along a chosen edge or face direction. It is presented as a workaround for the limits of snapping during edge slide, by Bryson Jack, who also posts the Blender Stack Exchange question it answers.
What people said
Recommends Bryson Jack · 2016-05 · Blender Stack Exchange · on “Is there anyway to snap to vertices while using Edge Slide with Clamp Off?”
Thanks for the help Georges. I posted a tutorial on this here [this video] if it helps to see it in video form. I used a more simplified approach as sambler posted.
Recommends Ebi · 2018-06 · Blender Stack Exchange · on “How do I align the origin rotation to the clear rotation of an object?”
I think what you are looking for is a custom transformation orientation . That will allow you to create new transformation orientation depends on edges or faces. Keyboard shortcut is Ctrl + Alt + Spacebar Here is a link to a quick tutorial: [this video]
Recommends t8ja · 2019-06 · Blender Stack Exchange · on “How to create a Tetrix/Sierpinski Tetrahedron fractal radiating from 0,0,0 ? Python or nodes”
To answer my own subquestion, this is how to access some of the custom transform orientations [this video] Ctrl+Alt-Space once in Edit mode, and once the desired subelement of an object is selected, in my case it was the vertex, so to move in any of the 4 ways the tetra is pointing.