We were thinking about buying a cheap 3D scanner because industrial-level scanners are expensive. But while doing a small research we realized that we could get the same results close to the budget scanner by using Polycam app. It provides lots of features but we used only the free version

Yes, it works great but has only a limited number of scans but it gave us good results. Reading this would stop you from  wasting a free attempt : ))

The 3D model is created using images captured of the object. We can take up to 150 photos, so it's important to ensure that all surfaces of the model are covered within that limit. The method we used involved slowly rotating the phone around the object while the app automatically took the photos.

1. The object should be lighted well and evenly.

We got a project from our senior to make him a side mirror for his car which is a Honda Civic ES8. Due to an accident, the right side mirror of the car was broken. So we are trying to make a new cover for the mirror using 3d printing at a much lower cost.

So this is the mirror and it has no cover, we scanned it to take the possitions of the screws. 

We are trying to take a scan of the Left mirror so that we can flip it to make broken one. But this is where we got in to trouble.

We endedup with an incomplete scan after processing the photos. And the we tryed to troubleshoot it. You can see how the outcome was by looking at the photo, futher you can view the scanned object.

We need to know that because of the reflection of the glossy surface, the object may not look the same in every photo taken during the scanning process, and therefore, it may not be able to generate the object. So we need to avoid the reflection.

We found out there are a few ways to avoid this.

We decided to go with the masking tape option since it is easily accessible and affordable. 

Was successfull because of the masking tape method.

We did the scanning process again after applying the masking tape and it was very successful. 
Scan:

To scale the mirror correctly after scanning we took a few measurements with a vernier calliper.

The scanned model should be tweaked further using manual editing. Of course, we need to smoothen the surfaces since we used masking tape. But still this is a very cheap but effective method to get a 3d scan. 

This project shares my experience. I'm not a professional 3D scanner yet, but I aim to share knowledge and raise awareness of this project is dedicated to sharing my personal experiences with 3D scanning technology. My goal is to provide valuable insights based on what I have learned so far.