Hello! I'm a newbie here,

I am trying to make a gantry structure for a 3D printer. I plan to use a T-slot frame for the gantry structure. However, I have a few questions regarding the structure:

1. Perpendicularity and alignment of the structure. How do I ensure it is configured correctly? Are there any online resources that I can follow?
2. I will be using two linear motors for the X and Y axes respectively. I am not sure how to maintain alignment since, for one of the axes, I am using a linear motor with two guide rails. I am afraid I may loose alignment when using it for printing. I have attached a picture of my design for more clear understanding.

Details about the structure:

T-slot frame with a base of 4ft x 4ft.
Linear motors: Aerotech Pro115SLE (200mm travel distance)

Feel free to provide any advice or resources that could help. Also, let me know of any concerns that you have regarding my design. Or if you any more infromation
Thank you!