Just wondering if anyone has any experience with them, got one, etc.
I had been eyeing the Revopoint brand but keep hesitating on buying. I don’t know anyone that has one and really would like to get more feedback. The Amazon reviews seem decent enough.
I am looking for something that can scan objects about hand size or larger and that I can walk around the object scanning. I don’t want to be limited to sticking the object on a scanning mat or turntable. I’m not going to be scanning minis (eg Warhammer). I do use the iOS and OSX platforms.
I just recently got a Revopoint Pop 2, and I’ve been thoroughly impressed by it. I feel anyone looking at 3D scanners needs to keep expectations in check (they are not magic), and it takes work to get good scans, but personally I think it’s well worth looking at Revoscan. For hand size and up, the Pop 2 or Pop 3 are great size. The mini is for very small objects, and I’m not sure of the Range can do that small (but it looks SIGNIFICANTLY better for larger objects). I’ve only had it for a week, but do you have any questions on it?
Also, check their ebay store. I got the Pop 2 openbox that way directly from Revopoint, and it was only $350 for the base, or $400 for the complete kit with turntable, battery bank, and case. The turntable alone is DEFINITELY worth the extra $50.
Here are some screenshots of scans. The head is my scan of the included sample part, and the 1 2 3 block is a machinist tool that is exactly 1 x 2 x 3 inches. I 3D printed it, and with calipers it checked about .010" off per 1", or roughly 1% “small”. That is with zero CAD work or scaling.
I’ve had pretty good results with photogrammetry, although the software I use is Meshroom, which isn’t available for Mac. There are alternatives like Regard 3D and Agisoft Metashape, but I haven’t tried them.
I do find it’s pretty important to get a good surface for scanning, though. The technique that’s worked best for me is to apply a thin layer of white tempera paint, and then flick on tiny spatters of blue tempera for texture. Tempera is nice because it washes off with water even after it’s dried, and it has a nice matte quality that’s useful for getting even lighting, which is important for the scan. If you’ve got an object where this is an unacceptable thing to apply to the surface, there are self-evaporating surface treatments you can get specifically for scanning, but they’re crazy expensive, so I rely on tempera whenever I can get away with it.
I’ve looked at several of the scanners that are available, but for the price I’m not satisfied that they’re enough better to make it worth it. Surface prep is still important, and the scanning software itself seems like a weak point for a lot of them. Meshroom is kinda slow, especially if you don’t have an nvidia gpu, but it’s free, which is hard to beat, and it’s pretty surprisingly usable.
If you look on YouTube there are a bunch of folks who have made reviews of the Revopoint and Creality scanners. They seem alright, but not good enough to be worth hundreds of dollars to me.
