You can print this with 20% infill, however I do recommend a 100% for the bottom 10mm and 100% for the top 30mm. The remaining is 20%... I have included the gcode with these recommended infill settings.

again if you download this... please consider buying my book

https://www.thelinenovel.com

or donating any amount to https://www.givesendgo.com/thelinenovel

Let me know if you have any questions or issues