About this 3D model
I designed a pen holder based on Roman columns and printed my LOGO on the bottom. I have uploaded the source file and can modify it to the size you need. This is size L The PLA print I used had the base set to 5 layers and the infill set to 10%. Other parameters are Bambu Lab default parameters. I also designed an S size to provide different usage scenarios. You can visit my homepage to view it.