FLSUN QQ-S Fanduct test

I have printed 3 kinds of fanduct from thingiverse 2：:3075594 3：:3721506 4：:3378308 FLSUN Focus on Delta For saving time on 3d printing we will continuous improvements and innovation have been made happen based on customers’ feedback and suggestions. Follow us for getting the latest products and event video news. If you have some good ideas with modification for FLSUN Delta pls contact :service@