I have done a Tinkercad course on Udemy, " Not the greatest, to be Honest" having said that i did get a few tips, certainly not value for money.
I am wanting to try and print on my 3D printer my very first print from Tinkercad.
Its a simple rectangle 75mm long x 25mm wide and 25 mm high with the top open and the bottom solid.
Where I am not sure is the square once sized correctly a solid? Secondly I put a whole at the top, thinking that this will take the top off exposing a hollow rectangle. Is this correct. I am not 100% sure how to achieve this.