https://www.aliexpress.com/item/32480198151.html?spm=a2g0s.9042311.0.0.27424c4d5JW7H9

https://reprap.org/wiki/Delta_Rostock_mini_G2s_Development

http://www.geeetech.com/wiki/index.php/Geeetech_G2_%26_G2s_pro_Building_instruction

http://www.geeetech.com/wiki/index.php/Geeetech_G2_%26_G2s_pro