The Cetus Extended 3D printer, a Rails-based printing technology has been occupying a great deal of my time as of late. This 3D Printer has a build volume of 180x180x280mm and supports 1.75mm PLA filament.
A very important consideration for children is a printer’s power source. Many 3D printer kits from GearBest, eBay or AliExpress contain open, live wiring that may prove extremely dangerous to children. This printer is a safe choice for children and schools. Cetus ships a kid-friendly power supply that will put to rest any parental concerns. Remember kids are curious. IMHO the Cetus minimalist design provides a better introduction to real hands-on 3D Printing for my children.
Cetus printers have an active Facebook group providing great feedback from a growing community of owners. I am also pleased to see an active Reddit community.
Popular 3D applications Simplify3D, Ultimaker Cura, Slic3r, and Craftware all connect to the Cetus Extended and run very well on an iMac. USB and WiFi are built in and Cetus has an iPad client. The Cetus app will also convert G-code to native machine code before sending objects to the printer.