Some of us here like the smell of hot melting plastic and the agony of seeing a glob of plastic on the printing platform after returning from a bathroom break and seeing a promising plot gone bad. Or having a 13 hour print be 96% complete and the local power company decides your area is in need of a Brown-out so they shut the power off. Which kind of reminds me of an old buzzard carton and without saying the exact words, who has the patience to wait a week or more for a print when you can have it in 3-10 hours. And I haven’t seen that much difference in the quality of the commercial FDM printers when compared to some of the home units that are available and with the programs getting better, so do the home prints. I have a crescent wrench done by one of those $10k printers and it looks pretty rough on the surface compared to what my $1350 printer can do and this weekend it just got better after I updated the CURA program.
Anyway to further respond to your question it might be wrong to re-post some of our prints on Shapeways for the ones that I print out at home are mostly the free downloaded type and I don't think anyone would want one of my printed chassis that I've modeled up due to the fact it takes at least 45 minutes to remove the support material in between the detail. So have fun building a slot car which ever way you want to approach it for it shoulod be fun in the end anyway.
