This model is designd for my own Anycubic Kossel Linear Plus. It's works perfect.
You may use is on other models , but is not tested ,I can't ensure it will works fine, so it's your own risk.
You need three M4 screws and T-nuts with length at 10mm for each.
About the little legs on bottom are designed for support, just cut it off after printed :-P
0.2~0.3 layer height with 0.4 nozzle
Any PLA is seems enough
As you like