I posted all of my profits over the last few years here
I never really gave it much effort. Just messing around mainly. I'll start putting in some effort later this year I think. Notice that I only have two products that sell well? Keep that in mind because if you want to make money with Shapeways you need to find out what products and product categories sell well.
I've been bugging Shapeways for years to provide data to help people figure out what products and product categorizes would be good to work on, but they have mostly foot dragged in providing this very important information. Here's the best they could come up with so far.
Some of these products you see on this page are top selling products mixed in with products that never sell or may be trending briefly. No way to use this page for anything unless one spends years studying it. I can tell you for certain that the dice products sell very well. How well? Shapeways wont say. I'd say Ceramicwombat is making 7000 to 10000 profit per month. I think they are Shapeways' number one seller.
I'll give an estimation of what I think some other shops and products are profiting per month averaged over a whole year.
I'd say Shekhtwoman dreams is making a profit of around 500 to 800 per month from her cityscape rings.
somersault18:24 is probably making something like 1200 per month selling science jewelry.
Most of the shops selling miniatures are probably making anywhere from a few hundred to several thousand per month.
NiqueGeek, with his custom branding lighter is probably making something like 3000 per month. He hired computer programmers to make software to help him sell these on Etsy! That's how many he's selling!
For Bathsheba I'd say something like 2000 to 3000ish? She's been doing it a long time and has developed a following. If someone were to try something similar they'd make very minimal profits I think until a couple of decades passed by.
TheoJansen is another artist that's been doing it a long time. I'd say he's making 1500 to 2000.
Mr_Props! There are a LOT of doll collectors in the world! I'm going to say something like 4000 to 6000.
Mythic Articulations & Richardson Creations has a HUGE FOLLOWING on Etsy! I'd say he's making at least 4000 to 5000 per month.
There are LOTS more shops and products worth mentioning, but that's just a few that caught my eye on the trending page.