The best replacement for 3d printer is cnc.

The best alternatives to 3d printer are rated as following:
★★★★★  cnc
★★★★  sla
★★★  rapid prototyping
★★  2d printer
★★  stereolithography
★  laser cutter
  cnc machine

Your alternative for 3d printer is not listed? Suggest!
Speaking about 3d printer, one probably shouldn't forget about 3d printer.

Other search terms related to 3d printer and their ratings are:
★★★★★ 3d printer
You have in mind a companion for 3d printer and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 3d printer in all years. Click on graph for more.
3d printer
cnc
sla