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Universal Ball Mount System

by Agger, published

Universal Ball Mount System by Agger Jan 22, 2016
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Sketchup

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10616Views 2007Downloads Found in Tool Holders & Boxes

Summary

This is a universal ball and socket system I designed to mount small speakers, but I imagine there could be lots of uses. The center link is a 1/4" X bolt, length to suit.

  • Update: Per Cyclone's suggestion below, I added a double socket piece to make an "elbow". I mocked up what could be a helping-hand device. Thanks Cyclone!

The cap and ball should be flipped over to print (threads up on the cap, hex up on the ball). I used 3 shells for strength. You need to work the threads on and off a few times to get them working freely. Be careful, as you can scrape your knuckles on the sharp edges turning the nut on and off!

Print Settings

Printer Brand:

MakerBot

Printer:

MakerBot Replicator 2

Rafts:

No

Supports:

No

Resolution:

medium or high

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Very nicely done.

Do you realize that the cap is not flat on the XY plane? I had to import it into openscad, rotate a bit around the Y axis, and then subtract a tiny bit off of the bottom in order to make it flat. Still, it turned out very nice

So.... I did have some trouble in makerware with this part. I needed to rotate 1 degree clockwise. I thought I addressed that, but I guess not! I replaced the cap with one I believe is level now.

Thanks for the catch!

I like your idea, so I added a double socket to make and "elbow". (see new pictures.) I think this ought to hold a pound or two. I find that as the sockets get worked in and smooth up, they lose friction, so at some point a scrap of paper mad need to be put behind the ball to add friction. I mocked up a "helping hand like you suggested, and it holding a 2.5 pound piece of cold-rolled steel.

I love it.
2.5 pounds should be fine for most applications.
As to the slipping from wear, I intended on swiping some silicone caulk on the inside of the cap and base. Just a thin layer, when cured, should offer all the friction the ball would need.

This is great! I've been needing a lockable ball joint for a small helping hand device. What sort of holding power does it have?

you could try to modify surface roughness to get the required "holding power." there are a lot of consideration that would control this including material, geometry, surface finish, etc... i would experiment if i was you.

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