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Tips For Buying An Air Scribe?


Paleoworld-101

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Hey guys,

I'm thinking about purchasing an air scribe for fossil preparation, which I will mostly be using to prepare brachiopods and gastropods out of sandstone matrix and tidy them up a bit (will it be able to remove the rock covering the shell but leave the shell intact?). Problem is I know next to nothing about what to buy, where to buy from, or what kind of air scribe or psi pressure will work best to blast away solid sandstone off my marine invertebrate fossils.

Anyone got any tips? Could someone recommend a good air scribe for this kind of thing that is affordable (around $100)?

Thanks!

EDIT- I had a look on ebay, and there are some affordable ones on there, but I have no idea if they are dodgy or not?

http://www.ebay.com/itm/Pneumatic-Air-Scribe-With-Industrial-Diamond-Tip-/350828283742?pt=LH_DefaultDomain_0&hash=item51aefec75e

Edited by Paleoworld-101
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"In Africa, one can't help becoming caught up in the spine-chilling excitement of the hunt. Perhaps, it has something to do with a memory of a time gone by, when we were the prey, and our nights were filled with darkness..."

-Eternal Enemies: Lions And Hyenas

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First off none of the general purpose airscribes will take off matrix and leave the fossil undamaged if you come too close to the fossil with the exception of the small micro jacks from Paleotools.

At the $100 price range you should have a look at a used Chicago Air Products CP 9361. It is a good all round first airscribe. AN ARO is also a good first unit. I personally prefer the ARO but they are a little harder to come by used. I would not use the diamond tip type styluses, I use carbide styluses pretty much exclusively. You can sharpen them a couple of times but the carbide tip wears really well and should last years if you do not abuse it..

I have 7 air scribes each of which has different strengths and weaknesses. My scribe for detail work is a Pferd MST with the fine point stylus but these are over $400 new and I have never seen one used on eBay. I am always on the look out to buy a used paletools micro jack if anyone has one they no longer want(PM me if you do), but those are generally not a good choice for a first or second airscribe as they take off too little material and really are for use under a scope.

Edited by Malcolmt
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An ARO is the best and most cost effective tool you can use for what you described. Do not use a Chicago Pneumatic. That is for bulk removal of rock. You can purchase a clone of the ARO at this web site: http://www.allairproducts.com/air_tools/specialty-air-tools/

This clone cost about $90-$100. This has been discussed on this forum and a number of individuals have made this purchase. I have used this clone for years (30+) and have had minimal problems. It is a great deal. Even the product code (8315B) is the same as the ARO.

The micro jacks from Paleo tools are also good but very pricey. I have one but rarely use it. The ARO clone is my main tool. Also, with the micro jacks you have to be very careful not to drop the tool. The tips are very brittle and replacements are about $40.

If you want to see some of the work I have done using the ARO clone go to http://www.crinus.info/before%20and%20after.html

crinus

PS Here is the link for the previous discussion on this topic

http://www.thefossilforum.com/index.php?/topic/24662-best-air-scribe-for-fossils-in-limestone/?hl=8315b#entry269293

Edited by crinus
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As I said I use the ARO the most. I think for most people the CP is a good starting choice because it will remove a fair bit of matrix quickly and can get reasonably close to the fossil itself. For most people I believe it is the removal of the bulk matrix that is the hardest to do by hand. My CP (that I actually rarely use any more ) is about 30 years old and other than some plastic electrical tape around the front to stop a seal leak still works like a charm.

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Thanks for the recommendations guys!

I will look into getting an ARO clone. I have been collecting fossils for over 7 years but have never been big on prep work in all that time, lots to go to work on! Of course I will practice on poor quality and disposable specimens to get the hang of it before I try it on the good stuff. Cheers.

"In Africa, one can't help becoming caught up in the spine-chilling excitement of the hunt. Perhaps, it has something to do with a memory of a time gone by, when we were the prey, and our nights were filled with darkness..."

-Eternal Enemies: Lions And Hyenas

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The Stone Company sells handmade German scribes. VERY expensive, but absolutely without compare. In 4 years of heavy use, I have never had a single stall and air pressure requirement is much lower than other brands. Vibration is minimal, so one tool can do a wide range of jobs. Worth the money (around $700).

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  • 10 months later...

An ARO is the best and most cost effective tool you can use for what you described. Do not use a Chicago Pneumatic. That is for bulk removal of rock. You can purchase a clone of the ARO at this web site: http://www.allairproducts.com/air_tools/specialty-air-tools/

This clone cost about $90-$100. This has been discussed on this forum and a number of individuals have made this purchase. I have used this clone for years (30+) and have had minimal problems. It is a great deal. Even the product code (8315B) is the same as the ARO.

The micro jacks from Paleo tools are also good but very pricey. I have one but rarely use it. The ARO clone is my main tool. Also, with the micro jacks you have to be very careful not to drop the tool. The tips are very brittle and replacements are about $40.

If you want to see some of the work I have done using the ARO clone go to http://www.crinus.info/before%20and%20after.html

crinus

PS Here is the link for the previous discussion on this topic

http://www.thefossilforum.com/index.php?/topic/24662-best-air-scribe-for-fossils-in-limestone/?hl=8315b#entry269293

I just got off the phone with All air products and ordered the 8315B. Price was $100 plus $20 shipping to Canada. When I first asked him about it he said they are a wholesaler and don't sell to the public. When I mentioned that I heard about it on the forum he said "ah, you are a fossil guy!" and said that he will sell directly to anyone on the forum. Very nice guy to deal with. I should have it in about a week. Looking forward to trying it.

A fossil hunter needs sharp eyes and a keen search image, a mental template that subconsciously evaluates everything he sees in his search for telltale clues. -Richard E. Leakey

http://prehistoricalberta.lefora.com

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... When I first asked him about it he said they are a wholesaler and don't sell to the public. When I mentioned that I heard about it on the forum he said "ah, you are a fossil guy!" and said that he will sell directly to anyone on the forum...

Seriously? That's pretty cool!

Give 'em a big, fat shout-out, and post their website url on our Links board. :)

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Ok I will do that. Like I said, the guy I talked to was really nice and quite helpful. I would recommend them for sure.

A fossil hunter needs sharp eyes and a keen search image, a mental template that subconsciously evaluates everything he sees in his search for telltale clues. -Richard E. Leakey

http://prehistoricalberta.lefora.com

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I also ordered a longer tip as well. It was $27. I was debating getting it but because I live in Canada shipping one later would have cost me another $20. This way there was no additional shipping costs.

A fossil hunter needs sharp eyes and a keen search image, a mental template that subconsciously evaluates everything he sees in his search for telltale clues. -Richard E. Leakey

http://prehistoricalberta.lefora.com

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  • 2 weeks later...

Whatever you do end up going with, keep magnification in mind. I saved up and bought an ARO and had nothing but trouble with it.. It would stall constantly, leak oil on my fossils and other annoying problems.. It was not until i broke down and bought a microscope that all of those problems seemed to disappear. Im not saying that you are gonna need a microscope like me but I find any scribe works a lot better with some decent magnification. Not sure how small the brachiopods and gastropods your working with are but in my experience, any added magnification really helps in eliminating errors and helps me slow down and not rush a project.

I just realized this is an older topic but all this still holds true..

Best of luck

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  • 4 months later...

I have been trying to get one of those off him for a couple of months now - doesnt seem that keen on setting up for international public sales..

Can anyone give advice on either of these three?

http://www.trademe.co.nz/building-renovation/tools/airtools-compressors/other-airtools/auction-793360903.htm

http://www.trademe.co.nz/building-renovation/tools/airtools-compressors/other-airtools/auction-793525638.htm

http://www.ebay.com.au/itm/Chicago-Pneumatic-Air-Engraver-Aircraft-Tools-/201182998762?pt=LH_DefaultDomain_0&hash=item2ed770f0ea

I just got off the phone with All air products and ordered the 8315B. Price was $100 plus $20 shipping to Canada. When I first asked him about it he said they are a wholesaler and don't sell to the public. When I mentioned that I heard about it on the forum he said "ah, you are a fossil guy!" and said that he will sell directly to anyone on the forum. Very nice guy to deal with. I should have it in about a week. Looking forward to trying it.

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I bought a used CP on Ebay for $200. The price is high for a used one but it came with 30 carbide tips, I think that makes it a great buy. It works very well on the Ord/Miss marine fossils I collect.

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Do not forget you will still need a compressor and the larger the less times it needs to build up pressure again.

I would recommend a long hose so as to place it in another room.

Mike D

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I hit buy now on a CP off ebay... I have a hobby 2.5HP compressor and a garage with a pit.. Hopefully it all just works. and if it uses that much air I am thinking of retrofiting an LPG tank and putting the compressor in the pit - should dampen the noise it a bit.

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Good luck with the new scribe 6ix.

You certainly have plenty of practice material.

I just bought a couple of scribes and a compressor too.

Looking forward to the upgrade from the engraver.

They arrive this week....

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  • 1 year later...

is the Aro more for fine details? Thinking about cp9361, Aro or me9100 I what something that can take off rok yet do fine details so which one would be best and is paleo tools the best place to buy?

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