Dust cover for Brother KR 830 / KR 850 ribber extension - print left and right two times.
Print them standing upright on their left/right outer edge with brim, no support needed. Your printer needs to be capable of printing at least 240mm height.
To assemble them, simply push the parts together and add a little bit of CA glue. That's it.
I printed mine in PLA+ which worked just fine.
The author marked this model as their own original creation.