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Found 13 results

  1. Dimitris

    Vaniman Pro Blast help

    Hello all. I recently purchased a Vaniman Master Mobile ProBlast unit, supplied with a a Violet (1.5mm) tip and a 110-250μm media tank. My compressor is a 1.5HP 50L Hyundai HL5010LS, for which I can testify that it is slightly anemic, but I paid 150$ for a silent compressor so... My blasting cabinet is a ready, sandblasting one, made by a Polish company. Nothing special, just a nice airtight blasting box. Ventilation is still pending. Lastly, my whole set up has two water traps, one supplied with the compressor and an additional one, which is connected in-line. The abrasive material I have is Iron Powder 150μm and Aluminium Oxide with size between 100-150μm. My problems: 1. I tried to operate iron oxide under various pressures between 1.5-5bar but the material seems to be not efficient against soft matrix like marls and clays. 2. The most efficient moment of the abbrasive material is when the media tank is at 20% and very little amount of iron flows; otherwise, I think it uses too much material. Is it possible to use a green tip (0.9mm) to restrict a little the output flow, using the same tank and the same 150μm abbrasive? 3. The Al2O3 is super aggresive as expected and creates huge clouds making it impossible to see. It is ideal if you want to bulk remove matrix. Other than that, it can ruin everything. What I am looking for: 1. I want to restrict somehow the flow of abbrasive but accelerate the speed of the material 2. I need advice about the tips and the media tanks 3. Can I work with Al2O3 at very low pressure? My usual fossils are: 1. Urchins with soft marlish matrix that can be cleaned with chemical process as well. 2. Other Paleogene and younger fossils, within acidic volcanic tuffs (soft to medium) 3. Some tricky to clean urchins within sandstone. The matrix is harder than the fossil (calcite) 4. Ammonites from the Greek Ammonitico Rosso (Lower Jurassic) Any advice will be more than welcome.
  2. I'm wondering if anyone on the forum has used the Dropout filter kit for moisture removal in abrasive blasting units. The kit has two main components: a water separator / particle filter, followed by a carbon filter. I'm curious how the carbon filter might compare with the with a desiccant system using silica gel. Any experience-based evaluations or reviews would be most helpful. Best wishes.
  3. Today I received my @Vaniman Mobile Problast. I ordered it Monday and it shipped the same day. I had a few questions and Nathan was prompt and answered all my questions. It arrived on my doorstep double boxed and well packed. Upon unpacking, the unit was inspected and found to be in order. The unit came with supplied with a 1/4” barbed hose fitting. For the air inlet. In the package also came a 1/4” quick connector. Which was easily changed out. I connected it to the 1/4” tubing I picked up at the hardware store and connected that to my compressed air line downstream from my filtration and desiccant system, filled the hopper with baking soda, and fed the nozzle into the blast cabinet.
  4. First real run with my new setup. Prepped out my Priscacara today. Was a bit disappointed the spikes were not spread out and the tail seems to have been damaged before it was buried. Very impressed with the powered iron. Working in the harder 18" layer stuff it seemed that ~50-60psi was good. Moving to the soft split layer stuff less than 10psi was more than sufficient. Collecting and reusing the iron is simple. Just use a magnet then filter it, stick it back into the problast. The cabinet wasn't ideal, but I realized that an adjustable laptop stand would fit right inside and hold the specimen in just the right spot. Worked like a charm. All in all, pretty satisfied with this setup. I have a few fish left to prep out, need to get my hands on some more.
  5. Hi everyone. New here, been lurking for a while. Drew some inspiration from what I've seen others post to build an air abrasive system. Been collecting 18" unprepped green river fish for a while now. Did one with an electric tool and wasn't super happy with the results. Ready to start with abrasives for sure. Just about done building the system, need to hook up the dust collector / vacuum / and exhaust. Main question is, where can I buy some iron power and dolomite? I see dolomite for sale on Amazon ect, Is it save to use that stuff? Is there a specific supplier you all use? Also, if anyone has unrpepped green river or white river stuff they want to get rid of PM me Thanks!
  6. Huntonia

    Chunky Dolomite

    I tried to get some dolomite ready for prepping today, this is first time I've used the dolomite since I got more serious about the quality of my medium, and first time trying pure dolomite. The dolomite I have is raw dolocron from the pottery supply house, I couldn't find any pre-sifted on their website. I used a mortar and pestle, baked the dolomite and sifted through a 120 mesh. Very little powder went through the mesh and what did is still clumping and sticking to surfaces. I don't think it will run through the paasche like this. Here's the mesh after a spoonful of dolomite: And here's what made it through the mesh Is there something I can do to make this workable or do I need to find someplace to buy pre-sifted dolomite?
  7. Notidanodon

    Air abrasive system

    High guys, I’m thinking of getting a small prep system to keep me occupied as I have some stuff to prep, however I need to keep it cheap, preferably under £200, so far this is what I have, for £99 I have a compressor with stats of 6L OIL FREE 1.2KW 1.5HP 6.5CFM 4000RMp 116PSI and an alloy steel pen needle (£40) 3800rpm Frequency 0.28CFM Air consumption: 0.08(m³/min) Working pressure: 90Psi(maximun) Pen diameter: 18mm Pen length:155mm Air inlet size: 1/4" Weight: 135g ( This has the appearance of an air scribe)if I just want to do light prep is this the right tool though, could I use it as air abrasive for fine details and aside from some dolomite and aluminium oxide, what would I need, to be honest I’ve been very confused despite doing research as up till this point I’ve just used a dremel and pin vice so I’m slightly out of my depth here, any help welcomed (btw all this stuff is brand new as I don’t want anything dangerous)
  8. Ptychodus04

    Time Lapse Prep

    Over the years, people have asked for some prep videos. My new blast box allows me to conveniently set my phone on the glass and run a time lapse video. Unfortunately, the files are too big to post directly so the links below will take you to my Instagram where you can watch the riveting videos. They are short since this is a test. Video Video
  9. Ptychodus04

    Mini Blast Box

    What do you do if you have a slab that is too big for your abrasive cabinet and you live in Texas where the weather never cooperates? You build a miniature blast cabinet that sits on top of the slab. The box is 8”x10” and is 7.5” tall. This allows my microscope to sit on the slab and come into focus without hitting the top of the glass. It is lit by 4 foot long LED strip lights taped to the outside of the glass. The bottom has a bit of tee shirt stapled tomorrow it to make a bit of a seal and the side where my arm goes in has the sleeve of the shirt stapled on. The other side has a hose connector for the dust collection system. It’s not a perfect seal so I still have to wear my respirator but on a day like today (30’s and snowing) It lets me work on a slab that needs abrasive and is really big.
  10. SULLY

    Best Blast Cabinet

    So if you were going to get a blast cabinet setup, what would you get? I know that a person probably needs two different setups to do it the correct way. And I apologize ahead of time if this has already been discussed. I don’t want the cheap stuff. I want quality that’s going to last. So I’m prepared to have to step up to the plate money wise to make that happen. Thank you everyone ahead of time! Sincerely, J
  11. Ptychodus04

    Edestus Prep

    @DSMJake sent me this beautiful Edestus jaw to prep and I got the chance to work on it today. After a week of relaxing in the prep lab, chilling with the phytosaur, it came out of the box looking like this: To all appearances, it is simply covered in shale and the prep would require some simple abrasion. But as we all know, appearances aren’t everything! Under a good portion of the shale was a pile of pyritized shells! So, I abraided what I could and set to work with the Micro Jack. After the shells were gone, it went back into the cabinet for some more abrasive. After the abrasive, I blew the whole thing off and scrubbed the leftover soda off with acetone. The broken end of the bone had some cracking to deal with so they got a bit of super glue and the whole thing received a good consolidation. Why the whole thing you ask? Under the shale, the bone is also pyritized and the teeth are cracked with some enamel on the serrations missing. In order to lock all that down and reduce the risk of eventual pyrite decay, the whole piece got 2 good coats of thin Vinac. All this took a grand total of 3 hours of work.
  12. Zenmaster6

    Air Abrasive Tool Help?

    Hi, I'm looking to purchase an Air Abrasive Tool, preferable online (or in a store that would sell them) I have been looking online but seem to get offers for tire maintenance and electronic cigarettes with dinosaurs on them when I look for "Air Abrasive Tool" on amazon / online So I have a few question for those who are experts to help out someone who has no idea about the tool at all. Any info would be helpful 1. Where can I get my hands on one? Can I go to a hardware store? Or can I buy one online? 2. If I buy one, I will want to use different PSI levels (if I even know what I'm talking about) so I don't damage the fossil when doing minor touch ups. How is the psi level adjusted? 3. Are there any rocks that it will not work on? Particularly the fossils I find are on mud stone and shale. 4. Can I use other abrasive powders such as baking soda which is less dangerous to breathe than aluminum oxide? (of course this would be outside with a mask on anyways) 5. What is the general price range for one that simply gets the job done (not looking for professional work, just trying to lightly expose my fossils from the matrix better)? 6. My girlfriend thinks fossils are utterly boring but would be very interested in using the air pen to touch them up (not sure why) is it possible you could hurt yourself if you accidently slipped and the tool touched you while on? 7. Will I need to buy compressed air cartridges, If so where should I buy them and what brand will fit? if not, how does it become pressurized? 8. Are there any things aside from the air tool that I will need to buy that is not included (other than a mask or fume hood) Anyone who can help point me in the right direction would be very appreciated. Thanks - John
  13. Ptychodus04

    The Agonizing Wait

    Why does time grind to a halt the moment you place an order for a new prep tool? In a moment of weakness, my wife agreed to me ordering a new Vaniman abrasive blaster and a Paleo Tools Super Jack scribe. Of course, I'm not waiting around for minds to change.
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