Hello,
*Be aware that this could make you hate your webcam’s fov.
I added an old Microsoft Lifecam vx-5000 to my printer that I found at my grandparents house (I asked if I could have it). But the real kicker here is the fact that I bought some fisheye lenses meant for mobile phones, and then glued them to it. The fov on this thing is insane! In case anyone else wants to do it, it adds a lot of functionality to your printer as you can mount the cam super close and still get the whole bed in view. For context, my cam is mounted less than a foot away from my print head, and it still gets the whole bed in view! Such a fun mod, and useful too. Obviously, the lifecam has a 55 degree fov, however, adding a 180 fisheye lens makes it amazing!
This whole setup would cost you about 35 bucks, give or take. You will have to get the cam used, however, its unique design makes it so you can add these lenses without adding any vignette. If anyone likes, I can go in depth on how to do this. Also the lenses don’t require any refocusing, which is nice.
Lenses:https://www.amazon.com/dp/B0179JX8GC?psc=1&ref=ppx_yo2ov_dt_b_product_details
Cams: Microsoft lifecam vx 5000 - Google Shopping
Happy Printing,
Blake
Ps: I am sure that you could stick one of these on your already existing webcam, however, it just might not work out as cleanly as mine did.
Old view 
New view 
The camera with upgraded lens
