Printed at Bambulab A1 mini with black BambuPLA.

I made a scraper V2 with unnormal shape for quality, efective and economical print.

For better strong if you dowlownd stl. version set the Vertical shells Perimeters for 4 and infill for 5%. 

If you have bambulab studiu set the wall diameter for 4 and infill for 5%.