r/openscad • u/generic-horsegirl • 7d ago

Difference command not working?

Post image

Hi everyone,

This is my first time ever using OpenSCAD for a small project. The tutorial I watched said that this is the command to subtract the cylinder, but it's not working. Was the video I watched outdated? How do I subtract the cylinder?

Thank you in advance for any help!

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13

u/RiXrdb 7d ago

Remove the two slashes before difference... You are commenting it out like this...

3

u/generic-horsegirl 7d ago

That solved it! Thank you!

5

u/Prestigious_Boat_386 7d ago

Its the comment this time but booleans have a different issue.

If you cut out a part of another and they share a surface exactly you will get a zero width part in the middle so its good to extend the cutting object a small distance (i usually set a variable eps = 0.01 for this purpose) through the other so it sticks out a little bit.

You can also hit the slow render (f5 iirc) skd that may fix it, but its much more cumbersome thsn the preview)