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Prices on Mcmaster..

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Prices on Mcmaster..

Unread postAuthor: Fnord » Mon Nov 19, 2007 12:29 pm

I was just browsing McMasters website the other day, looking for parts for upcoming projects when I saw this:
5/8" stainless steel tubing (marble barrel), item number 1991T15 (copy/paste)

Now look at the price.
$108 for 6 freakin inches!


Is this some kind of mistake? I haven't looked through mcmaster that much, but surely they can't possibly expect anyone to buy from them with prices like that.
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Unread postAuthor: Ragnarok » Mon Nov 19, 2007 12:56 pm

I doubt it is a mistake, those are very fine tolerances, and that costs big money.
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Unread postAuthor: jimmy101 » Mon Nov 19, 2007 1:29 pm

Ragnarok is right, that is not generic steel tubing, it is designed for shims, bushings etc.
The tight tolerances on these smooth, low-friction materials allow you to increase or decrease a shaft/rod diameter size. They also fit inside each other to increase more than one wall thickness. Use high-speed steel or carbide blades to cut to a specific length for a bushing, spacer, shim, or sleeve bearing.

Your basic 5/8" (OD) stainless steel tubing is $3.36/foot (8989K27). Steel tubing is even cheaper.
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Unread postAuthor: jackssmirkingrevenge » Mon Nov 19, 2007 1:44 pm

On an unrelated note

there is no C in the correct Norse spelling of it people!


Neither is there an R, a, g, n, o, or k, considering it's a runic alphabet ;)
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Unread postAuthor: Fnord » Mon Nov 19, 2007 1:49 pm

Call the FBI, we got a hijacker ^ :)

This is 5/8 (.625) ID tubing. It is similar to conduit in dimension, but stronger.
I see .62", which will probably work for smaller marbles, and for $22 / 6 feet. I'll have to check locally to see if there's anything cheaper. Shipping and all, >$30 is a lot for a barrel.

Still, I don't know how they manage to sell the expensive stuff.
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Unread postAuthor: Ragnarok » Mon Nov 19, 2007 2:06 pm

jackssmirkingrevenge wrote:On an unrelated note
there is no C in the correct Norse spelling of it people!

Neither is there an R, a, g, n, o, or k, considering it's a runic alphabet ;)

Ok, point me at a site where I can buy a runic keyboard then. Just after you've done that, tell me honestly I wouldn't then be referred to as "The member formally known as Ragnarok".

The correct spelling doesn't contain a C, and a lot of people were saying "Ragnarock", which as well as being wrong, uses up an extra key press - as people usually just call me Rag (good for getting confused with a small piece of cloth used for cleaning up grease or other stuff), or sometimes on very rare occasions 'Rok, because they're shorter, I thought I'd save them that key press.


... I looked again, there's a zero more in those tolerances than I thought there was - that's a mere 1/200th of a millimetre. My digital vernier callipers can't measure that precisely!

As for the hijacker, I will selflessly throw myself from the thread and drag the offender out with me. I may choose to giggle all the way to the ground. Now, watch out for the explosive decompression.

*WHUMP... He he he he he he he he he he he he SPLAT... ow, my spleen*
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Unread postAuthor: jackssmirkingrevenge » Mon Nov 19, 2007 3:38 pm

I know, just being my usual pedant :D though a runic keyboard would certainly be cool :)
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