Countersinking - Skill Builder

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Learn how to master countersinking holes into curved surfaces, sinking the whole piece into the design.

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Thanks for the tip on the divide function. I realized that can also be used to space things out equally over a given dimension, such as stair steps. Great! Something I’ve wanted to do for so long but never could figure out myself.

johnluttropp

I appreciated the talking points on little details of using each tool. I.e. "pressing the up arrow....triple click...pressing the right arrow.." Thanks this is helpful to me.

KayakersRest

The skill Builders are great. It would be even better if there was a list that gave a brief description of the content that could be selected and it would take us to that specific skill builder.

dougmcpeek

I have been trying to do it but failed. Atlast you have did it

faridahmmedashik

In our shop on an actual machined part the screws would have been arranged so that the head of the screw was co-planar with the surface, , , it seemed although I was viewing on my phone screen that the axis through the center of the screw was tilted a few degrees. Put another way if you drew a ray from the center of the sphere through the center of the counter sunk hole it would pass through the center axis of the screw, , it didn't seem as though this was the case in the example, , , but you have me some great tools on sinking and cutting countersunk holes on curved surfaces, , , it will come in handy, , , I've had some complications when modeling countersunk holes on curved surfaces, . Not if you could demonstrate a clever way to align the screw center axis to the ray, , , Id be in hog heaven, , , and I could continue to fool my boss into believing I really knew what I was doing, , 🤨

pauljenkinson

K, I got the screws radial and simplified the workflow. First the circle at 4:55 should have been 10x sides, so that the multiplied screws would rest on all five faces the exact same. Then at 5:55 I pasted the screw onto the ground so I could make it a component, setting axis with blue forward from the "Top" endpoint of the screw, and turning on Glue to Any and Cut-away. Then I dropped it from Components onto the center of one of the faces of the dome, and copied it 5x. All copies auto-cut the dome. IMO this would make a less clunky Skill Builder vid, especially as the method used above does not work if the dome is any larger relative to the screws than what was used.

northshoretotes

To make countersinks for screws you need to match the angle of the countersink angle of the screw head. This varies with the type of screw, they are not all the same. Flat- and oval-head inch screws are normally 82 deg. whereas 90 deg. is the norm for flat- and oval-head metric screws. So how to quickly create that bevel on the countersunk hole you are creating seems important to me.

bobd.

After I pasted the screw onto the dome, and went to move it circa 6:30, axis-snapping stopped working. I could make the move line change to red, green, and blue color, but still move the screw freely. Other shapes still move/snap normally. Is this a web version bug or a hidden exception to snapping?

northshoretotes

How do we do proper angels on the dome hole would be a good video.

davidfinlay

Thanks Aaron - another great set of steps and tips. I'd be interested in your thoughts on this: all of the 5 countersink components were obviously slightly off skew relative to the half-dome, which is understandable. In order to get them deskewed, as it were, would that require each one individually having time spent on it, or might there be another trick to this?

philiph

I tried what you achieve at 6:00 but the object doesn't orient to the sphere... :-( - Is it a recent feature of the SketchUp? (mine is 2016)

stanhauser

when i move the small circle, di circle line is moving with my cursor or became tube / cylinder
and not shape like yours. How do you do that?

ruthdewiutami

I often work with complex organic shapes, such as these, when doing RC models, and I find it quite frustrating that when intersecting, a lot of errors appear. I read that scaling up the models would help, because the cause was somehow linked to working with small objects, but it doesn't. I spend a lot of time cleaning the faces in hidden geometry one by one. Any tips for avoiding errors when intersecting?

antcam