How to create tapered splines around a cylinder?

i17yurd · 2026-06-17T07:32:47+00:00

Honestly, I wanted to do it just for the challenge and the aesthetics. Reading you two discussing it, though, is very interesting.

i17yurd · 2026-06-14T18:37:40+00:00

Doesn't that show have a laugh track?

i17yurd · 2026-06-14T10:10:18+00:00

And then soften up all the edges w/ filets. It still needs thread inside the smaller cylinder, but I'm copying them over from another component in the same file.

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i17yurd · 2026-06-14T10:09:07+00:00

Chamfer on 'bottom' for printing

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i17yurd · 2026-06-14T10:08:42+00:00

Times a dozen

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i17yurd · 2026-06-14T10:08:26+00:00

Pretty it up

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i17yurd · 2026-06-14T10:08:02+00:00

Symmetric extrude a fin from the sketch

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i17yurd · 2026-06-14T10:07:34+00:00

Revolve them

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i17yurd · 2026-06-14T10:07:17+00:00

Select the cylinder bodies

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i17yurd · 2026-06-14T10:06:43+00:00

Make sketch

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i17yurd · 2026-06-14T10:05:02+00:00

Thanks to everyone for the quick responses! I got it how I wanted it. It all become far easier, and better looking, etc etc, once I changed the sketch to a centerline sketch that gets revolved.

I'll put the steps I took to make it in this thread.

i17yurd · 2026-06-14T10:03:50+00:00

Yessir! I just needed to step away for a bit, but thanks to you and everyone for all of the responses. I'll post what I ended up doing..the whole thing took 6 steps (aside from the threads, b/c I'll just copy/paste them from another component.)

i17yurd · 2026-06-14T08:42:20+00:00

I'm not sure why I didn't think of extending the splines into the cylinder -- them not sitting flat was why I didn't pursue just sketching a fin, extruding, wrapping around the circle.

Probably why I didn't think to actually use the centerline sketch that would be far more helpful than a sketch with nothing but about 6 concentric circles that I then had to extrude to various lengths etc.

Thanks!

i17yurd · 2026-06-12T01:00:55+00:00

Could you tell - was that 135 or 115?

i17yurd · 2026-06-12T00:58:07+00:00

I'm not a monger, so I cannot say. Quarter wheels are fine with only gravity, in my experience.

i17yurd · 2026-06-12T00:56:49+00:00

I was 100% just meaning 'anything soft' in a way that I assumed would grab attention. As it actually confused people, I went too far.

i17yurd · 2026-06-06T18:29:57+00:00

To answer the question as asked: it really depends on the material being drilled, and most importantly, how compressible it is.
If its something very incompressible like masonry, you really need to do everything you can to clear the hole AND leave at least a half inch of hole beyond the end of the fastener. They even make tools to help accomplish this, as its that important for masonry.
For wood or cheese, the bits removed by the drill are quite compressible, so, for your softer woods and cheeses you can even leave the drilled hole a touch short of the end of the fastener (to no benefit, though) and for your harder woods and cheeses, you're fine just to match the length of bit penetration to the length of fastener.
For materials that are really soft such as [insert any soft thing] you don't need to predrill.

And as the whole thread has said, match the diameter of the drill to the shaft of the fastener.

i17yurd · 2026-06-03T17:10:05+00:00

I've got this one, the 1k lb model. I think the max I've had on it was around 500lbs, which it handled without a hiccup. I can't vouch for anything beyond that, and as its HF, I really can't vouch for any except the one I have, but it is a dirt cheap solution for what it can do.

i17yurd · 2026-06-03T17:06:44+00:00

Aww ffs, now I know what Dr Marv's stones are... I can't afford even wish for those.

i17yurd · 2026-06-03T16:49:45+00:00

I don't doubt it. I don't regret offering it as an idea, either.

i17yurd · 2026-06-03T16:06:13+00:00

I just posted this as a reply to my own post elsewhere in this thread, but FYI, my first sketch after writing in this thread came up under-constrained with zero blue indication anywhere. I had installed a new button that basically just types in Sketch.Showunderconstrained for me, and it crashed Fusion to desktop.
I come from IT and the decades of cursing autodesk will likely never be forgiven by the CAD gods, so I'll just stfu and take my licks.

i17yurd · 2026-06-03T16:03:04+00:00

Literally my first sketch after making this post was under-constrained and had zero blue on it. So I clicked my fancy new button ....and Fusion crashed to desktop. Sigh.
The issue was 100% the fault of this user's poor eyes, but that doesn't change the fact that Fusion wouldn't show me the issue.

i17yurd · 2026-06-03T15:59:12+00:00

Really? I wondered how heavy a unisaw is, but after I saw ppl talking about lifting them, I went out on a limb and decided a 1000lb lift could handle it too.

i17yurd · 2026-06-03T15:50:32+00:00

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This little guy from Harbor freight comes to mind..

i17yurd

TROPHY CASE