Dumpster Dive Results

[EdK]

A couple more items from work. The shafting is 5/8" dia. by 22" long 300 series SS. That rectangular piece is just a chunk of 1018 CRS that was probably used as part of a life test fixture.

Ed

   

[EdK]

A bit more from the dumpster at work.

Ed

[RobWilson]

Nice haul Ed ( smilies )

What do the lengths of bar come from ?


Rob

[Mayhem]

Quote:Nice haul Ed ( smilies )

What do the lengths of bar come from ?

Rob

From the dumpster Rob, the title says it all :ROTFL: (I've left the code for when the smilies work again)

[RobWilson]

(09-21-2014, 06:03 AM)Mayhem Wrote:

Quote:Nice haul Ed ( smilies )

What do the lengths of bar come from ?

Rob

From the dumpster Rob, the title says it all :ROTFL: (I've left the code for when the smilies work again)

LOL ,TWAT !!!! ,(BIG SMILEY)

Rob

[Hopefuldave]

An immediately useful dive, for a change...
6 feet of 5/8 x 5" 6061 aluminium, with a pair of bolted on L_____I shaped standoffs, TIG welded beautifully, same material, 21" long. Got home, and was cursing having broken the top-box brackets on my Givi pannier Wingrack (on my "touring" bike), £40 the pair and out of stock both in the online shop and the importers, tripped over the aluminium I'd scrounged and thought "No, couldn't be, my luck's not that good!" but one of the standoffs is a perfect fit to the mounting points once I slip a washer in between each side, puts the top-box exactly where I want it! Eight holes drilled and counterbored, a few stainless bolts from just up the road, and I can carry my camping gear again, even the airbed and pump, and still have room for a bottle of single malt
We have a healthy recycling / reuse policy and a Top Quality skip (classed as "mixed metals", so we almost have to pay to get things taken away!) at work, had I the transport and somewhere to put I could have had lots of electronic test gear (obsolete, "Beyond Economic Repair" etc.), through medical LASERs and optical components to one of the sturdiest workbenches I've seen in a long time - an Optical Table, 1" thick ground steel top tapped M6 on a 25mm grid, sat on 4" box section legs, Well Braced, too - at 6 x 4 ft it wasn't going in the bike panniers, though...

[EdK]

(09-21-2014, 04:26 AM)RobWilson. Wrote: Nice haul Ed ( smilies )

What do the lengths of bar come from ?


Rob

Rob,

Thanks. They're shafts that likely held rubber rollers. They're 300 series stainless steel.

Ed

[PixMan]

Ed,

You should be able to tell if it's the easy to machine 303 vs. a tougher 304 or 316 by taking a cut on it. If it breaks chips easily, 303. If it doesn't but leaves a beautiful finish, likely 316. If it doesn't break chips, looks rough and destroys your cutting tool, probably 304.

[EdK]

(09-21-2014, 09:22 AM)PixMan Wrote: Ed,

You should be able to tell if it's the easy to machine 303 vs. a tougher 304 or 316 by taking a cut on it. If it breaks chips easily, 303. If it doesn't but leaves a beautiful finish, likely 316. If it doesn't break chips, looks rough and destroys your cutting tool, probably 304.

I've looked at the drawings for the shafts that we get machined for us and the drawings mostly specify "300 series SS" with a few of them specifying a specific SS. I think it's mostly 303. At least the shafts I've machined behave like your description of the 303. It machines fairly easily but with an OK finish. Certainly not beautiful but not too rough either. Thanks for the tips Ken. (smilie)

Ed

[EdK]

A few more things from the dumpster. I have no idea what I'm going to do with all of those thrust needle-roller bearings but I couldn't see them getting thrown away.



Ed