Thread: How Bevel is Affected by Taping

Originally Posted by Jimbo

Geez - I'm almost reluctant to pop my head up here now. Sorry to have set this off.

Icedog, I think your observations are great and useful and I appreciate the effort put into them. Of course, it's entirely possible that you measured A from the inside of the spine to the edge, but there had to be some guestimate in doing so. If A is treated as the hypotenuse, measurement is less fraught with error as you can measure from the spine flats to the edge without having to guess where the unobservable middle of the spine is. When A is the hypotenuse, the data points to the same conclusion!

Also, I think proportionate change in angle might be a better measure than absolute change, but that's a very easy calculation to make from your excellent data. But isn't the angle a product of proportion already? My head would explode if I tried to interpret proportionate change in angle to practical usage. That doesn't speak much for my head, does it?

When we're talking about small angles and marginal changes, measurement error becomes rather important too - how much of the measured change is measurement error? I think you mentioned nearest 1/16 th of an inch? So, if I remember correctly that means 1/32th of an inch error in measurement? The error isn't enough to produce any anomalies in the data across 9 razors: The wider the razor width, the less the difference tape makes (which we already knew) and the change in delta corresponding to the change in razor width is consistent. 32nd of an inch error wasn't enough to negate the validity of the data in my opinion!

Finally, how good is the assumption of equal hone wear on each side of the razor? Probably it's not that bad, but we are talking small changes here, so it could be worth considering. If the razor is being taped, there won't be any hone wear

Lastly, and this is not a direct go at you, but more a defence of Mparker. And I realise your comments were probably made in the heat of frustration, but.... If the "thank you" system had been implemented 2 years ago (or so) when I joined as opposed to 3 months ago (or so), I can guarantee that Mparker would have hundreds of "thanks" by now, probably most of them from me. He is enormously systematic and knowledgeable and has helped me greatly with his articulate posts over the years. Wait a minute, you were addressing icedog? In that case I take back everything I just typed

Just my 2c.

James.

I have to say though I agree with icedog's conclusions, even after the corrected data calculations were presented earlier: "I need more big razors"

Originally Posted by hoglahoo

I have to say though I agree with icedog's conclusions, even after the corrected data calculations were presented earlier: "I need more big razors"

LOL! I think we can all agree on that.

James.