Who is making a cheap 3d scanner that seems to work pretty good

[spaceman]

MakerBot has one and I saw one person on Youtube that used it do a pretty good job on a simple model.
Im sure there will be many more coming out at good prices.

I plan to make some small gear parts for old stuff that need some new ones but they are not made anymore.
The 3d scanner would save lots of time designing.

[This]

Scanning small gears is something the makerbot scanner could never do, the resolution of that scanner is way to low,
you would need a sub 0.1mm scanner to maybe do that, and the Einscan-S is the cheapest 0.1mm scanner at the moment.

Why don't you do it the old fashion way, use a black marker and color just one side of the gear, lay them on a old flatbed scanner, and scan at highest resolution,
you would just need to trace the image in a CAD program, and make it and size or thickness you want

[spaceman]

Yes if its flat on both side I could just scan it on a flatbed scanner and then extrude it up to the right thickness.
But if its a different shape the scanner would help. I will have to keep looking.