Question: I'd like to achieve something similar to this (the mesh shown in the picture. I don't need it to be rendered as wireframe. Just need the mesh):
[![enter image description here](https://i.stack.imgur.com/A1ZoZ.jpg)](https://i.stack.imgur.com/A1ZoZ.jpg)

What I have in mind is that I have a plane, and I subdiv and deform it with a circle using something like the hook modifier. I tried it and apparently the hook modifier doesn't work as I imagined.

In addition, I'd like to not only let the plane deform by a circle, but also by a custom curve.

Answer: 
To create a hollow letter :

* create a new project and remove the cube
* Add a text object
* press `TAB` to enter Edit mode
* change the text to the letter your want
* press `TAB` to exit Edit Mode
* press `ALT` + `C` and select "*Mesh from curve/meta/surf/text*"
* press `TAB` to enter Edit mode
* press `A` to select all vertices
* press `E` to extrude to the alf of the final letter depth
* press `Shift` + `S` and select "*Cursor to selected*"
* press `X` to delete faces
* press `TAB` to exit edit mode
* select menu "*Object / Transform / Origin to 3D cursor*"
* add a solidify modifier
* change the thickness
* apply the solidify modifier
* press `TAB` to enter edit mode
* change the view to Front Ortho (`5` `1`)
* press `Z` to change to Wireframe display
* press `B` and draw a border to select faces on the top of your letter
[![border selection](https://i.stack.imgur.com/s86df.png)](https://i.stack.imgur.com/s86df.png)
* press `X` and select "*Faces*"
* press `Z` to come back to Solid display
* press `TAB` to exit Edit mode
* add a mirror modifier
* select the proper option X/Y/Z (unselect X and select Z)
* apply the mirror modifier
I have seen some tutorials for cleaning up the mesh on converted text by using the Remesh modifier to create an even grid mesh. Might be worth a try at one of the earlier stages after converting the font. Be sure to uncheck "Remove disconnected parts" and play with the octree depth to see if you can get something workable.

Here is a vid showing its use on a single character. <https://www.youtube.com/watch?v=PEt07reVhJ0>

Added:

I just ran across this video <https://youtu.be/QxDOhxjdFOs>

The first part of it shows a way to make text with very clean geometry.

Hopefully one if these ideas will help with your project.