Please help me blend positive and negative shapes

Greetings,

I am modifying 2-battery storage container into a project box. I have successfully used the negative cylinder to cut out a hole for the sensor, and I have used the negative cube inside the body to “etch” out a location for my monitor board. The problem is that negative cube cuts through to the exterior of my container. In my simple mind, I simply add a positive cylinder in a vertical fashion such that the exterior forms a square corner encasing my sensor module and the interior is sculpted out my the negative cube.

As you can see from my pictures, such was not the case. The positive part doesn’t show-up after rendering, even though i have it set for 100% infill.

Would someone please tell me what I am doing wrong or tell me how to achieve the effect I am seeking?




You need to set it to “part” for the change type option.

I think it should be easier to use a conception software like FreeCAD ou Fusion 360 …

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Thank you so much. While I have made parts into “non” parts, I didn’t know they could start off so differently.

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Perhaps, for you. I am 65-years-old and, every time I have to learn a new skill set, I can literally hear my future running away from me. The tools provided by Bambu Labs are pretty potent when I use them properly. As was pointed out to me, I had to rename the rectangular cube description to a “part.”

I’m 62 years old … It is not so hard and there is plenty of tutos ! It will open new horizons…

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Don’t waste your time trying to kludge designs with the wrong tool set. Tinkercad is literally child’s play and will take less than two hours to understand starting from scratch. It’s not perfect, but FAR better than BS for design.

and please stop the ‘I’m old and incapable’ nonsense. Age is no barrier to digital competence.

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I don’t think that’s what @reddingsun means by…

It takes time to learn a new skill; no matter your age. If he thinks this time is better spent doing something else, it’s not for us to judge whether that is the case or not. Having said that…

Of course you can use a sledge hammer (Bambu Studio) to get a nail or even a screw into a wall. Fair play if it’s a one off scenario; however, please don’t make a habit out of it. BS is a slicer software and there is a reason these things are called “primitives”. They’re not really meant for what you are doing with them.

Takes about two minutes to create the thing you got there in your screenshots from scratch in Fusion 360. That is of course if you know what you’re doing. Just ball parking the numbers here, but the extra time you spent in BS doing what you did would have been one tutorial. Posting here and waiting for a reply would have been another. So ultimately, if you plan on doing this more than just this time, you’ll save more time by actually looking into some modeling software.

This playlist starts at the very beginning and the guy is really going over it at a pace that nobody will get lost. Maybe spend the 20 minutes to watch Lesson 4 and then make up your mind which way you’ll end up saving more time… does 20 minutes sound fair? Put the video at 2x and it’s only 10 minutes.

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