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[4]

Idea for a Mill Base

[3]
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ddickey

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#1
Has anyone considered or tried the 80/20 aluminum framing system for a base on their machine?
 

Dave Paine

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#2
I have not tried this, but consider beefy brackets or plates to connect the pieces. An example. I have some of these.

20 series plates

Also consider the slide in T nuts. More contact area than the drop in style. I have some of these and like them. I got metric ones to go with other hardware for my 3D printer.

Heavy duty T nuts
 

ddickey

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#3
Yes I agree about the brackets. I'll have to look into the T-nuts.
The idea I like is you can add on or make adjustments or what have you. Also they would be square which can potentially be troublesome when welding.
 

ddickey

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#4
Gave that idea up. Way to hard figuring out what I need. I'll weld up a simple base with leveling feet.
 

kd4gij

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#5
I have built things using that stuff in different sizes. At my last job. Nice to work with but far from cheap.
 

jwmay

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#6
Not that it matters now, but I consider the whole idea of screwed together extruded aluminum to be a very expensive way to do a job poorly. We use this stuff everywhere at my job, and it is constantly falling apart, stripping, sagging, rebuilt, rinse, and repeat. I would never use it for a machine base. We’ve done it here, and it invariably gets rebuilt with welded steel.

For an application such as something like a safety cage without any doors, it works decent. Put a door on it, and you may as well start building the steel version. Put any weight on it, especially weight that moves or vibrates and it’s worn out in 6 months.
 

GrayTech

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#7
Not a durable solution. You could try using the heavy steel struts and connectors if you want adjustability. Again, not exactly a cheap solution.
 

mattthemuppet2

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#8
I used 2x3" steel tubing bolted together (no welder) with casters and jacking feet. Works really well and didn't cost much to put it together.
 
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