How to slope bottom of a cylinder?

Hi –

I am attempting to make a coin holder for the cubby in my car. I’ve got the cylinders laid out.

What I am attempting to do now is slant the bottoms of the cylinders so the coins will rest at an angle. For example, the middle cylinder is for quarters and I would like the back of the bottom to come up about 28mm to create the slope to the front of the cylinder.

Any help?

Thanks – Jeff

Is this what you’re describing?

The bottom of the cylinder? I think, off-hand, that the easiest way is to draw a sloped plane and intersect the sides of the cylinder with it. Erase the old bottom and excess of the cylinder and plane. Unfortunately rotating the bottom you have is not going to work.

Yes, I believe it is pretty close.

The cylinder should remain round except for the bottom portion where the slope starts. The slope will not extend from top to bottom of the cylinder.

– Jeff

This is just my scratch piece as I slowly develop the features of the holder. Now that I know the size I need for my coins, I can alter my development process. Are you suggesting looking into drawing a sloped plane that intersects the cylinder and then adding all the pieces back together into my completed block?

Thanks – Jeff

You might consider drawing a “cutter” with an appropriately sloped bottom and intersecting that with the geometry of the block.

Cylinder with a “cutting plane” at the appropriate angle.
Intersect Faces.
Erase the unneeded geometry leaving the cylinder with the angled bottom.
Position the cylinder in the block.
Intersect Faces.
Erase the geometry that isn’t the block with the recess for the coins and correct the face orientation.

This could be even faster with SketchUp Pro or Shop due to the addition of Solid Tools.


Thanks DaveR – that does look like what I want to achieve.

With the recommendation from pbacot to use a cutting plane, I started playing with this. I think this is doable for my small project (and limited experience). The immediate challenge I see is getting the cutter set to the appropriate angle for each slot.

I’ll go down this road a little further and see how I do. Appreciate the assistance and feedback.

– Jeff

One way to make sure you get the angle the way you want it is to draw a rectangle and adjust the top edge to suit.

maybe Fredo’ s shear which will not distort the tube.

you can see from top parallel view it keeps sides correct.



I used the box method to bisect each tube at the desired angle and then removed what I didn’t need. Then joined all resulting objects together to create the prototype from which I will massage to fit within the desired space.

Thanks for all the help and guidance!

You have some back-faces showing [colored blue-gray]
If the object [when grouped] shows it is a ‘Solid’ in ‘Entity Info’, then select a front-face, context-menu > Orient, to flip all connected faces properly.
Some 3d-printng apps can become confused if SketchUp’s faces are not oriented logically.
Typically, you should never see a back-face…

Yea, I noticed the back faces when I did the screen shot. They did not affect my print. None the less, I have already fixed them in my model.

Thanks – Jeff

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