Here is an example of me floating inside a door opening in a tower and never touching it:
Anyone had problems like that with your meshes openings? Is there a way to reduce the gap?
Thx
I’m not sure quite what you mean by this, could you elaborate?
Yeah I am also confused, I think you need to do that in the modeling program if you are using one.
This is a hit-box issue.
Personally, I’d recommend making the mesh or union collisions off and making two non-unioned transparent parts either side to emulate the correct hit-box
I know there is an option to edit the hit-box within Roblox but I believe this uses a lot of memory.
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@itsokayepic and @alexthecool600, I made a tower with a door opening. I used that image to show you that my character cannot be closer to the mesh, it seems to collide before as if the opening of the door was smaller. In a previous smaller version of the door opening, I was not even able to go inside the tower.
@OverheadWires, this is one mesh, no parts. It has been resized though by a factor of 2. Here is the mesh and the faces using Meshlab.
Thx
I will try this and get back, thanks in advance.
No problem, hope it helps and fixes your problem
Tried it and doesn’t work. It was already set to default.
I have read that it is still an approximation, not the mesh collision for obvious reasons.
I will try to look into other solution maybe like you said, I could use two meshes where one is invisible with collision activated, but it is still twice the work.
I will keep you all posted if I find anything.
Try using Blender maybe? I am guessing your program does things different.
I believe you misread my suggestion.
I suggest you add two parts as collision walls and make the mesh collisions off.
Oh, I am sorry. I will look into it too.
thx
It was made with Openscad. I just used Mesh lab to check if there was flaws in the design. Sometime I use thinkercad for fast and easy design.
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Try Blender and see if it works, also how are you exporting the mesh (fbx, obj, etc)?
I will try it, thank you. I am exporting the mesh as .obj.
Yeah, try using blender and also FBX too
Software and file format don’t affect hitboxes unfortunately.
What is your solution then?
I suppose your solution is great 
Although I don’t appreciate the attitude, here is my solution.