subtract cylinder

[Akbar]

Hi every one,

 

I'm newbie in lisp and Autocad,

I have simple drawing with lisp includes some boxes and cylinder and i want to subtract some cylinder from box
My code look like this :

(command "box" "0, 0, 0" "16, 400, 1084")

(command "cylinder" "24,28,16" "4" "-11")
(command "cylinder" "24,72,16" "4" "-11")
(command "cylinder" "40,108,16" "5" "-10.3")

 

How can subtract these cylinder form box?

Thanks for any help

Akbar

Edited December 12, 2023 by fuccaro
Thread title adjusted

[BIGAL]

Think of it like this as you make each solid remember it (setq sol1 (entlast)) ie box, then when you use the subtract command you can use the entitiy names in the correct sequence.

 

Have a go rather than us providing an answer.

 

(command "extract" sol1 .......................)

[paulmcz]

13 hours ago, Akbar said:

Hi every one,

 

I'm newbie in lisp and Autocad,

I have simple drawing with lisp includes some boxes and cylinder and i want to subtract some cylinder from box
My code look like this :

(command "box" "0, 0, 0" "16, 400, 1084")

(command "cylinder" "24,28,16" "4" "-11")
(command "cylinder" "24,72,16" "4" "-11")
(command "cylinder" "40,108,16" "5" "-10.3")

 

How can subtract these cylinder form box?

Thanks for any help

Akbar

You can't subtract these 3 cylinders from the box. The cylinders are outside the box. They do not interfere with the box.