How to upload own 3D Text Model:
1.First, create 3D text in 3DS Max software as below and save it.
2. Upload the 3D text into Coohom as per the requirement here https://helpcenter.coohom.com/en/articles/5882231-coohom-3ds-max-sketchup-model-upload-requirements
3. Look for the 3D text own upload as shown below:
How to search 3D text in Coohom public library:
1.Go to Public model library, look for Home Decor, next 3D Text.
2. Drag the 3D text into floorplan and adjust the size of 3D text.
3. Check out the rendering effects.