Dust collection magnetic hose connectors

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Just a quick alert to an item that I just put up on Printables.
I’m sure that many of you are aware of the dust collection hose adapters that allow a connection to be made using magnets. These work quite well, but most of them seem to be for the 4" hose.

On my LR4, I’m using 2.5" hose and wanted to be able to quickly disconnect and move the shopvac for cleaning or other maintenance stuff. There IS a version for the 2.5" hose, but it’s pretty expensive and also requires clamps to attach the hose.

My version is actually threaded so that it doesn’t require clamps. As a result, it’s much more compact. Of course, this is for connecting two hoses rather than attaching to a machine, but this would be a fairly straightforward change.

Here’s the connection:

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Here’s the fitting itself:

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And, you can find the whole story at Printables:

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I like that. It would be nice to quickly be able to clean up the table using that.

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Great timing. I just added a dust hose to my LR3 and was going to be looking for something like this.

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Man, that looks oddly familiar. :yum:

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It’s really brilliant, I have a plastic tube connected to another part that allows me to quickly vacuum the whole table.

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Very nice. Although I hadn’t seen yours, I’ll edit the listing to point to it. That way, if someone has a different thread they might not need to re-design.

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Great idea! I’ll need a day, but this will happen next. :smiley:

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I’m surprised to see that they have 5 magnets. I would have expected to see an even number of magnet so that you could alternate their polarity.

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There is no need or advantage. Just as with the commercial units, only one side is loaded with magnets. In my case, the other side is simply steel washers. So, one must put the two pieces together and then rotate either direction by about 36 degrees until it attaches.

Note that the x-y alignment is accomplished by the presence of a shallow lip on one side so that the only movement needed is the small rotation.

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Okay thanks. That makes sense now.

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This isn’t intended as a hijack (I don’t have any 2.5inch stuff here) but some may find something useful in my “dust collection” collection for larger sizes.

All have been in use in my workshop for several years.

It’s not quite on the scale of gridfinity, but also my vac connectors have had many remakes so there’s a fair chance you’ll find something to fit whatever you have if you aren’t up to designing your own.

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Nice collection of fittings. Thanks for the links.

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I have made a bunch of magnetic and other fittings using this Openscad file. Parametric vacuum hose connector with magnetic connectors. by Max | Download free STL model | Printables.com
It takes a little work to understand it (at least it did for me). It does not have screw connections though.

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Yes. It’s clear, isn’t it, that if one wishes to have magnetic connections, had a 3D printer and a certain level of design skill, you can go far beyond the commercially available solutions.

I actually purchased the Woodpecker version before I did my own, but found the necessity for clamping to be a shortcoming, as well as the limited formats.

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