In the attached file, I need to show an opening in the cylinder in the position shown by the lines, to the right of the ‘door’ shown. How would one go about doing this? Chamber.skp (256.0 KB)

First, should the wall and the door have some thickness?

[image] Is this close to what you are trying to achieve?

Precisely!!! Thank you, Dave! I’m beginning to feel like I should be paying you for lessons. I thought that I had given the cylinder walls a thickness of an eight (or maybe 1/16") thickness but perhaps not. Would you, please, explain how you drew the opening? Thank you, again, Master!

It would be easier if I show you live. Got time now?

Sorry, Dave. Didn’t see the post. Wife had me out on a hot dog lunch trip. If you are free, so am I at the moment.

Thanks, Gully! Guess I have 2 of you to suck up to now!

rh, I sent you a PM. Gully’s method is good, too.

Thanks to Gully and to Dave, here is the finished product. It is a drawing for my sheet metal working supplier to make a pizza oven and cold smoking chamber for my Weber 22.5" kettle grill. The latch is courtesy Christopher R. and the 3D Warehouse [image] Uploading…

Cool project Is that to sit on top of the Weber?

How to "Pierce" a Cylinder

SketchUp

Gully_Foyle April 17, 2016, 6:13pm 7

Don’t let me interfere with your sucking up to Dave, but here’s a possible approach.

-Gully

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How to "Pierce" a Cylinder

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