Author Topic: Infinity Cube  (Read 6260 times)

Online Kim

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Infinity Cube
« on: July 03, 2022, 12:06:56 AM »
When I first got my new Titanium welder, I ordered several sets of coupons to practice on (from Weld Metals Online).  I also ordered a few ‘cube’ kits and an ‘infinity cube’ kit.  I’ve done a lot of welding on coupons – so much that I got totally bored with it and decided to go ahead and do my BIG project (the 2x72 belt grinder) as part of my practice.

But I hadn’t done the infinity cube.  So today, I set out to do that.

To start with, I taped all the pieces together and labeled them to increase the chances that I would get things welded together mostly in the right orientation. (Note: there are extra parts shown here that are just used as packing to keep the taped parts together).


After this, I gave a little bevel on some of the sides for welding butt joints.  This turned out to be the first project where I used my new belt grinder!  It worked a treat :)

Here I’m fitting together four of the parts into subassemblies:


And here’s a set of subassemblies, ready to be assembled together.


The next step – putting these sub-assemblies together, was harder than the first part, but I mostly got there.


With three larger sub-assemblies, I then positioned the three remaining joints as best as I could and welded them together.  I tried to spread out the inevitable offset equally between the 3 joints but didn’t do a very good job of that.  Two of the final joints had pretty good-sized gaps, but I was able to fill them with weld and only the most observant will notice it (or so I tell myself :) ).


Anyway, that ends my scheduled welding training.  Now, back to the Pennsy!

Kim

Offline propforward

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Re: Infinity Cube
« Reply #1 on: July 03, 2022, 12:23:41 AM »
Very nice - I was looking at one of those kits at one time - a fun welding exercise for sure.
Stuart

Forging ahead regardless.

Offline crueby

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Re: Infinity Cube
« Reply #2 on: July 03, 2022, 12:54:36 AM »
Never seen one of those, looks like a 1-2-3 block designed by M C Escher!

Online Kim

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Re: Infinity Cube
« Reply #3 on: July 03, 2022, 05:11:31 AM »
Thanks Stuart and Chris!

Yeah, it was a very fun little project!  And it makes a cool-looking little item to have sitting around the shop!

 I'd never seen one before either, Chris. But when I saw it, I thought "That would be a fun little welding exercise" and it sure was!

Kim

Offline bent

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Re: Infinity Cube
« Reply #4 on: July 05, 2022, 07:02:34 PM »
That is another project I've kept in back of mind for awhile now.  Our neighbor at work is a motorcycle dealer, a lot of their Italian and Japanese bikes come over on crates made from square and rectangular tubing...so, a ready source of raw material.

Your welds look fine to me.  And I'm not brave enough to show some of my welding experiments lately.  :hellno:

Online Kim

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Re: Infinity Cube
« Reply #5 on: July 06, 2022, 05:21:19 AM »
Thanks Bent!  :cheers:
Kim

Offline Lew Hartswick

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Re: Infinity Cube
« Reply #6 on: July 16, 2022, 02:45:28 PM »
OK now the next step is a bit more complex . :-)   Here is one someone showed me some time ago and the wooden one I did in the woodshop to check it out.  the wood joints are doweled.
   ...Lew...

Online Kim

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Re: Infinity Cube
« Reply #7 on: July 16, 2022, 04:09:11 PM »
Wow! That's really nice, Lew!

So, is the metal one carved out of a single block?  Or did you fab it together?

Kim

Offline Grateful Ted

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Re: Infinity Cube
« Reply #8 on: July 16, 2022, 09:22:41 PM »
These are very cool.
If I saw this on a shelf or coffee table, it would be very hard to not pick it up & examine it closely.

Offline mklotz

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Re: Infinity Cube
« Reply #9 on: July 16, 2022, 10:40:52 PM »
OK now the next step is a bit more complex . :-)   Here is one someone showed me some time ago and the wooden one I did in the woodshop to check it out.  the wood joints are doweled.
   ...Lew...

So, Lew, are you going to give us the dimensions for the non-identical L's and how many of each to cut ?  I'd like to throw a quick one together just butt gluing square stock.  If I like the result enough, I'll make one with mitred joints.
Regards, Marv
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Offline bent

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Re: Infinity Cube
« Reply #10 on: July 18, 2022, 09:24:42 PM »
That one looks fun too...yikes, more stuff for my retirement projects list LOL

Offline Lew Hartswick

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Re: Infinity Cube
« Reply #11 on: August 11, 2022, 02:54:49 PM »
I used dowel joints on the wood one. (the metal one was just a picture that was posted by the person when the subject of those impossible things was being discussed on a forum) The lengths ----   Humm somewhere I should have that but it may take a while to find.  I'll have to see if I have a pix of the fixture I built to do the dowel holes on the drill press also.
   ...lew...

Offline Lew Hartswick

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Re: Infinity Cube
« Reply #12 on: August 11, 2022, 03:24:07 PM »
OK dug out the pix compressed them and measured the parts.
The stock is 1" square, quantities and lengths; 3 ea 2.5" long, 6 ea 3" long, 3 ea 3.5" long
Good luck Marv be sure to post a pix.
   ...lew...

Offline mklotz

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Re: Infinity Cube
« Reply #13 on: August 11, 2022, 04:03:08 PM »
Thanks, Lew, much appreciated.
Regards, Marv
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Offline Brendon M

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Re: Infinity Cube
« Reply #14 on: August 12, 2022, 01:00:19 PM »
This likes like a fun project and also a great welding exercise! However I'd probably go crazy cutting the tubes; so many mitre cuts!
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