[meteorite-list] Another question for the Saw Wizards

From: R N Hartman <rhartman04_at_meteoritecentral.com>
Date: Wed, 1 Jul 2009 11:51:27 -0700
Message-ID: <001201c9fa7c$f11f0340$6401a8c0_at_DBZC5NB1>

There are different quality blades (quantity of diamonds per unit, in the
blade), and also various rim configurations. Performance varies with brand
also. I think the blade is wearing out when you are seeing less even cuts,
unless something is wearing in the saw itself. As I have experienced it,
the CBN blades are best and primarily for cutting irons.

Ron

----- Original Message -----
From: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
To: "R N Hartman" <rhartman04 at earthlink.net>
Cc: "Meteorite List" <meteorite-list at meteoritecentral.com>
Sent: Tuesday, June 30, 2009 6:52 PM
Subject: Re: [meteorite-list] Another question for the Saw Wizards


> Hi Ron and List,
>
> I noticed that about the blade sanding it's way through the specimen.
> The first slices I made were the smoothest and the prettiest. Now,
> after many cuts, the blade is leaving more noticeable saw marks.
>
> The blade I am using is the stock/default blade that came with the
> saw, so I don't know how good it really is, quality-wise. I have
> another blade sold specifically to cut meteorites, it's the same
> thickness but the blade is brown-colored instead of reflective bare
> metal. It's also a CBN, which comes highly recommended. I wanted to
> practice with the stock blade before moving on to the CBN. I also
> have an extremely thin and floppy diamond blade called a laser
> "dia-cut" which I haven't used yet either.
>
> Best regards,
>
> MikeG
>
>
> On 6/30/09, R N Hartman <rhartman04 at earthlink.net> wrote:
>> That because a Diamond blade (but not all!) with the very fine continuous
>> diamond mesh does not cut, it "sands". It sands its way right through
>> your
>> tough iron meteorite and if your saw is running smoothly it will give
>> your
>> slice a high polish as it finishes the cut. If you have some issues with
>> the straightness of the blade or continuous feed, etc. you may get
>> grooves,
>> which is a sad problem!
>>
>> Ron Hartman
>>
>> Disclaimer: Use of this information, I am not responsible for lost
>> fingers,
>> noses or toes!
>>
>> ----- Original Message -----
>> From: "Mr EMan" <mstreman53 at yahoo.com>
>> To: "Meteorite List" <meteorite-list at meteoritecentral.com>; "Galactic
>> Stone
>> & Ironworks" <meteoritemike at gmail.com>
>> Sent: Tuesday, June 30, 2009 4:18 PM
>> Subject: Re: [meteorite-list] Another question for the Saw Wizards
>>
>>
>>
>> Last time I cut with a diamond blade it only would cut the nail and not
>> the
>> skin--wanna give it a try and see if thinner blades can cut skin?
>>
>> Mike they make a slab holder/jig which comes in few sizes that lets you
>> cut
>> down below 10mm or so. Once you clamp the stone in the jig you clamp it
>> in
>> your saw vice. $20-30 on ebay.
>>
>> Elton
>>
>> --- On Tue, 6/30/09, Galactic Stone & Ironworks <meteoritemike at gmail.com>
>> wrote:
>>
>>> Hi Listees and Stonecutters!
>>>
>>> After using my saw on several occasions now, I wanted to
>>> share a
>>> recent experience and ask a related question.
>>>
>>> While cutting a small unclassified NWA stone about the size
>>> of a
>>> walnut, my stepson showed up and started
>>> watching. It made him
>>> extremely nervous watching me handhold the small stone
>>> while I cut it.
>>> Apparently seeing my unprotected fingers a half-inch away
>>> from a
>>> spinning diamond blade was too much to bear. He is
>>> absolutely
>>> convinced I am going to cut a finger off. (Shows how
>>> much confidence
>>> he has in me!) LOL
>>>
>>> He asked why I don't use some kind of jig or holder that
>>> will hold the
>>> stone for me. I showed him my rock vise, which is
>>> made for use with
>>> this particular saw. But the vise is only good for
>>> larger stones, or
>>> elongated stones. It's not much good for holding very
>>> small
>>> acorn-sized or walnut-sized stones. So, I bravely go
>>> where no fingers
>>> should go. He asked what I would do if I cut off my
>>> finger, and I
>>> nonchalantly said I would drive myself to the nearest
>>> emergency room,
>>> wait my turn, get it sewed back on, and then go home with a
>>> big
>>> bandaged hand and type a one-handed email to the list about
>>> the
>>> episode. ;)
>>>
>>> So, my question is - how do you cut very small stones on a
>>> 6" lapidary
>>> saw? Do you hand hold them? Do you use some
>>> kind of jig? And how
>>> many digits do you still have on your hands?
>>>
>>> Honestly, I am not terribly worried about it. I am
>>> experienced with
>>> power tools and saws, so I'm not being reckless. But
>>> if there is
>>> something I can do to make my wife and family feel better
>>> about it,
>>> I'd do it.
>>>
>>> Best regards,
>>>
>>> 10-Fingered Mike (for now)
>>>
>>>
>>> --
>>> .........................................................
>>> Michael Gilmer (Louisiana, USA)
>>> Member of the Meteoritical Society.
>>> Member of the Bayou Region Stargazers Network.
>>> Websites - http://www.galactic-stone.com and http://www.glassthrower.com
>>> ..........................................................
>>> ______________________________________________
>>> http://www.meteoritecentral.com
>>> Meteorite-list mailing list
>>> Meteorite-list at meteoritecentral.com
>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>>
>> ______________________________________________
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>>
>
>
> --
> .........................................................
> Michael Gilmer (Louisiana, USA)
> Member of the Meteoritical Society.
> Member of the Bayou Region Stargazers Network.
> Websites - http://www.galactic-stone.com and http://www.glassthrower.com
> ..........................................................
Received on Wed 01 Jul 2009 02:51:27 PM PDT