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wierdness in Excalibur ad...stainless steel not reliably straight?
I saw the following in an ad for Excalibur: "...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Why would stainless be any less straight than any other kind of steel? Chris |
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wierdness in Excalibur ad...stainless steel not reliably straight?
I saw the following in an ad for Excalibur:
"...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Why would stainless be any less straight than any other kind of steel? Chris If it was worded more accurately, it would read "for our standards at a price we are willing to pay." Stainless can be as straight as needed for anything that a woodworking machine would ever need it to be, but like ANY other steel, it's going to need to be straightened and it's not as easy as it is to do to "normal" steel...that is, cold rolled or alloy steel. Mike |
#3
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wierdness in Excalibur ad...stainless steel not reliably straight?
Perhaps it reacts to temperature shifts too easy.
Chris Friesen wrote: I saw the following in an ad for Excalibur: "...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Why would stainless be any less straight than any other kind of steel? Chris |
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wierdness in Excalibur ad...stainless steel not reliably straight?
Chris Friesen wrote:
I saw the following in an ad for Excalibur: "...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Why would stainless be any less straight than any other kind of steel? Stainless has both a higher strength than mild steel, and it work hardens much more rapidly as it is formed. Rectangular tubes in stainless will end up with higher residual stresses after forming and welding than tubes from mild steel. These stresses will tend to distort the tube from a perfect shape. I expect the tube mills guarantee better straightness on mild steel tubing. All that said, however, this claim is primarily marketing hype. Exactor sells sliding tables that are (or at least started as) copies of Excalibur's. Exactor tried to differentiate theirs by using stainless rails and claiming since there's no paint for the table rollers to wear off, their sliding table stays more accurate over time. Excalibur shot back that their painted steel rails are more accurate to start with. I see that Exactor now sells Biesemeyer-clone rip fences. The front rail they use is painted mild steel tubing. So if paint wearing off was a big deal for accuracy, you'd wonder why they didn't use a stainless rail on their rip fence, too? Anyway, I've got the Excalibur sliding table and Exactor overarm blade guard, both bought at woodworking shows for good discounts from list. I'm very happy with both. When I got the sliding table, I talked to both vendors at the same show. I wanted the 40" model to cut 4x8' panels and the Exactor vendor insisted on selling me his 26" model (which I think he had too many of). The Excalibur guy sold me the 40" table for the price of the 26" Exactor. I didn't see any significant mechanical differences between the two. If the prices were reversed, I would have bought the Exactor. But now I've got one, I can't see myself ever giving it up. During hobby use for three years I don't see any evidence the paint is wearing off the rails, but if it does, I doubt I would even be able to measure the difference with a micrometer. I doubt if I could measure the lack of straightness of stainless rails, either. Tim |
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wierdness in Excalibur ad...stainless steel not reliably straight?
On Tue, 25 Oct 2005 17:57:58 -0600, Chris Friesen wrote:
I saw the following in an ad for Excalibur: "...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Huh? Why would stainless be any less straight than any other kind of steel? Because their marketing people didn't check with anyone before writing that copy, I'd guess. Complete and utter bull****. |
#6
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wierdness in Excalibur ad...stainless steel not reliably straight?
On Tue, 25 Oct 2005 17:57:58 -0600, Chris Friesen
wrote: I saw the following in an ad for Excalibur: "...we won't use stainless steel for guide rails for example. It is just not reliably straight enough for our standards..." Why would stainless be any less straight than any other kind of steel? Chris starrett makes high end straight edges from stainless. they are very expensive. cheap stainless tends to be soft. |
#7
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wierdness in Excalibur ad...stainless steel not reliably straight?
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