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Beginner's first prep experience; a small Brachipod preparation!
Jaybot posted a topic in Fossil Preparation
Hello y'all, I recently got my Dremel 290, and I haven't actually prepped anything with it yet, as I have just played around with it on a scrap fossil to get a feel for it. I decided to start my first actual prep, and I figured I'd bring y'all along with me as I thought it might help others just starting out by learning from my mistakes (hopefully not too many). Well, here goes. This is a small brachipod I found, and is not very impressive, so I'm not afraid of ruining it. Then again, if this turns out the way I hope, it will be a very attractive desk display piece. Found in Kansas City area, in a roadcut that has the best mineralization I've seen yet here. Some of the shells will be black, and I have found a few that have nice blues and reds. This one is mainly grey. Before leaving town this past week, I was able to get about 30 min in. Started with leveling the matrix around the fossil a bit, then started work on removing matrix from this fossil. Hurts to scribe right through these spines, maybe someday I'll learn how to air abrasion, and be able to save the spines similarly to those spectacular trilobites we've all seen. Leveling the matrix: And getting to work on the shell: Hopefully y'all enjoyed this. I will be posting here as progress is made. Won't be able to work on it until next Monday, see y'all then! Have a great weekend.
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I got my dremel and I want to prep the Ammonite in the picture. Can someone give me some advice or tip to use the tool and for that Ammonite? I will practice first with some Ammonite fragments. The matrix is kinda soft and weak.
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I have dremel 3000 but I dont know if is good to prepare a short size fossil like this Ammonite
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Was gifted a large section of sedimentary rock containing Middle-Devonian (Mahantango Formation) fossils. One Rugose Horn Coral was already exposed a good bit. I decided it would be a good candidate for my first attempt at fossil prep beyond a basic cleaning with a brush, soap and water. I picked up a Dremel 290 and 2ct fine-point aftermarket bits from Amazon. I'll eventually purchase the bits provided by Zoic Paleotech, however these worked well for the job. I started slow, working away from the fossil to chip away the rock. I've exposed a good deal, and now am working on wearing down the area on the underside to slowly expose more of the fossil. Here is a before photo.
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Been slowly working on this fossil concretion using a dremel tool and some coats of B72, slow progress but I am starting to expose some of the bone. Can anyone give me any tips or advice, this is my first time doing prep work on bone.
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I have a dremel engraver similar to the dremel 290 , I was wondering were can I purchase some fossil prep tips chisel , nibs here in the US. I’ve heard of Zioc Paleo but they are in the UK. Thanks
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Need help in finding a replacement stylus for my dremel for working on rocks. Not like the one that comes with the Dremel. I ordered one years ago and can't figure out who carries these. 1 and 1/8 inches in length. Thanks Mike
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Hello again, I have recently ordered some bits from ZoicPaleotech for my dremel 290 engraver. I've had quite a lot of practice with the normal bit the dremel comes with ( as I am waiting for the proper bits to arrive). I would love to buy some unprepared fossils from the forum in the future. I've practiced on some soft shale matrix containing trilobites, and I found it quite easy, and very satisfying because the rock pops off the fossil easily. Do you guys have any suggestions on fossils to prepare in order to help me grow more accustomed to preparation?
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Hi all! Thought I would start documenting my trilobite preps. Here is #1, a Calymene breviceps from the Waldron shale, Indiana, and my first real prep. This is about 15 hours using hand tools primarily and a dremel for clearing some of the original matrix. My fingertips are sore, but lots of fun was had! Very exciting to see this feller reemerge after 400,000,000 years! Now to track down some other unprepared trilobites…. Trickier part of the operation…
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Hi everyone These two pieces were collected by my boyfriends father and his family about 60 years ago on the Jurassic coast of Charmouth/Lyme Regis. A little while ago he brought them out to show me and said I could keep the ones I liked. I chose these two, but not to keep. My idea was to prep them, reveal the fossils inside and give them to him at Christmas. I used a Dremel with specialised tips and a sewing needle in a pin vice under a microscope. Overall I'm quite happy with how they turned out, not perfect, but I can see my own improvement. The larger single ammonite (Promicroceras sp. I think) had significant pyrite rot on the matrix on the reverse side. I removed it with the Dremel and will coat the ammonite and the reverse side with Paraloid. As you can see, the matrix split beside the ammonite whilst I was Dremelling. It would be great to hear opinions on whether you think the piece looks better with the matrix glued back on, or left alone? I would love to hear any advice and critical feedback. Before: The reverse side After an hour or so on the Dremel: The reverse side, after removing the pyrite rot: All finished after a bit more Dremel work and about 2 hours with a needle (no Paraloid yet though): With the excess matrix: Without the excess matrix: The second piece, before: After an hour or two with a needle: After about 40 mins with the Dremel: All finished after a few more hours with a needle and some Paraloid to glue back the broken pieces and stabilise:
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Hi all. I found this piece today in Withernsea, Yorkshire. I have a Dremel and I've made a start on prepping it but I'm scared of damaging hidden ammonites. Any suggestions? Also, what type of ammonites are they? Thanks for any advice.
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Here we see a middle Cretaceous ammonite I recently found. Before cleaning attempt And the other picture is after. I used a dremel and various bits. I wouldn't rate it 100% bad since it is my first attempt using power tools, however I would not recommend it. It lacks accuracy and sometimes the bit moves unpredictably, removing fossil material. Nevertheless, the sample was not something I intended to keep in my collection so I thought to give it a try and verify myself the advice so many people give. Use an airscribe!
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Hello all, I've done a bit of light prepping, but not much grinding. My typical matrix is a cement like limestone matrix that is hard to get things out of. You just sort of have to hope things come out clean. I bought an air scribe and use it often. It's not easy work, but eventually things can come out pretty clean. I have a couple of pin vices, but they are almost of no use with this matrix, there is so much calcite. I use them more often for shale. I use a battery and wired Dewalt grinder with a cement/granite cutting wheel to remove specimens from larger rocks. I have been looking into the battery or wired Dewalt 1 1/2in die grinder, but not sure if it would be as useful compared to something like a Dremel. I figure I would need some sort of carbide or diamond bit set. I'm looking to remove larger pieces of matrix before getting closer with the air scribe. Thank you for any help.
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I just wanted to give a product recommendation here. I was looking for a finer tip for my Dremel engraver so I could work on smaller areas without fear of damage. I was recommended this guy (from our favorite auction site) by a fellow member. I was a little skeptical at first since it's hand crafted, but I figured hey why not, costs about what I spend on coffee every day. But I must say, this is one of the best purchases I've made. It outperforms the standard tips by several factors. Not only does it allow you to work on tighter areas, but it is very long, which increased the working distance by almost an inch. Also, since the tip is so small, it more easily took advantage of weak points in the matrix. The standard tips mostly pummel the matrix to bits, whereas shale has been sliding off like butter with this new tip. I highly recommend this to the folks on here who can't get a higher end setup. Makes a world of difference.
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I have recently begun my journey into fossil prep, i'm using a dremel electric engraver as it seemed to be the best cheap tool. I have several ammonites from Yorkshire within nodules - these are very hard in the centre and consist of pyritised sediment. It is taking a very long time with the dremel using tungsten-carbide point, so just asking for any advice on how is best to try and get through these very hard bits. Cheers in advance!!
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Hello. I am setting up to finally prepare some of the fossils that have been languishing in my collection in desperate need of exposure. I live within a few miles of one of the premier Devonian formations in the northeast USA, (Hamilton Group) of Penn Dixie fame, and I have always lamented my inability to pull out the best from my finds. I have begun to accumulate equipment. I will list what I have so far, and I am open to suggestions as far as what direction to go from here. Already have: A room, far from the rest of the household, where the noise from the equipment won't ###### everyone off. A garage based compressor, with a line running to said room. A micro dremel, (electric, which was much quieter than the pneumatic one) with numerous bits. A respirator Small shop vac, with various small attachments. An air-line bridge, with three attachment points, one with an adjustable gauge. A good sturdy drafting table, (got lucky on that one) A micro nozzle duster, self-constructed A CP9160 Air Scribe, with 2" and 2.5" sharp needles, as well as the stock needle. (Apparently, very similar to the ARO) Various artist brushes. Okay, here's where I need some help: I need a magnifier with light, and there's absolutely a gajillion of them out there. Suggestion? 5X 10X 20X? LED, Green vs. White glass, etc. I also know I should be looking into a pen type sand blaster, but I don't have the resources to sink into the system, the air handler, and the glove box etc, but would be willing to take suggestions for when I can afford it. Thank you for your help, Derek
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Hello, I would like to know if I can use regular drill bits on my dremel. I have a fossil that is currently soaking in soapy water to loosen up the sediment (likely made up of hardened clay with shell peices embedded into it). There is quite a bit of rock and I was wondering if I can use a drill bit on a dremel to shave off most of the rock. I do not want to chisel the fossil as I have tried this with similar fossils and have ended up cracking them. Feel free to critisize my methods as I am new to this and would like to learn.
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Hey all, quick prep question. I’m looking at buying this dremel set with these accessories. I want it for smoothing (removing pen marks) polishing and sharpening the tip of my TT. Would i need to buy anything else to do this or is everything in this set? This is for hard Yorkshire Coast material Thanks
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As I'm fairly new to prep, I thought I would "show my work." This is far from anything professional looking. I am also not using a good enough blasting medium. But it does look a bit better. This is a roller found from Penn Dixie. There are still some trouble spots, and some very stubborn stuff on the glabella that just won't blast away. I am using a mix of approaches from needles/picks, Dremel, pliers, and air abrasion. Total time about 40 minutes.
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Hello, this is my first time using a dremel to prepare fossils. I decided to begin testing the dremel on an enrolled trilobite with partial cephalon because I thought it would the easiest and it was already missing pieces. So far I am happy with the results, however, it's very difficult to get into tight areas with the factory issued tip (also I wish I would have started on a less anatomically complex position!) Anybody have suggestions on where to find fine tipped carbide needles for the dremel? can't seem to find any anywhere..Or other alternative methods ..I can't afford an air scribe right now, so that is out of the question..... Thanks
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