Crann Posted November 4, 2017 Share Posted November 4, 2017 Hi, thought would have a little look/dabble with this as been in a box a while, the top always looked like it would pop straight off, looks like this is the case but spines on the opposite side are still fully in tact but I think the fracture runs straight through, do I "peel" off the top and prep the spines out to add later or attempt to prep around the spines, either way the top will lift off, cheers. Link to comment Share on other sites More sharing options...
Crann Posted November 4, 2017 Author Share Posted November 4, 2017 Link to comment Share on other sites More sharing options...
Ludwigia Posted November 4, 2017 Share Posted November 4, 2017 I'd consolidate it with glue and take my time prepping around the spines. An abrader would help once you get close if you have one. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 4, 2017 Share Posted November 4, 2017 1 hour ago, Ludwigia said: I'd consolidate it with glue and take my time prepping around the spines. An abrader would help once you get close if you have one. +1. Glue the fire out of it and prep as if it was a solid concretion. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Crann Posted November 4, 2017 Author Share Posted November 4, 2017 47 minutes ago, Ptychodus04 said: +1. Glue the fire out of it and prep as if it was a solid concretion. Used a pva mix around the edge to keep together so nothing pings off. Link to comment Share on other sites More sharing options...
JohnBrewer Posted November 4, 2017 Share Posted November 4, 2017 ‘Glue’ is a bit of a generic word imho, sorry to be a pedant. There’s good glue and not so good glue. What glue? I think it’s important for new members who may see this thread to know. I guess you’re talking about Paraloid or Butvar type PVA. Again I do realise I’m being pedantic but, y’know John Map of UK fossil sites Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 5, 2017 Share Posted November 5, 2017 1 hour ago, JohnBrewer said: ‘Glue’ is a bit of a generic word imho, sorry to be a pedant. There’s good glue and not so good glue. What glue? I think it’s important for new members who may see this thread to know. I guess you’re talking about Paraloid or Butvar type PVA. Again I do realise I’m being pedantic but, y’know True. If it were me, I would pour a stack (to take a page out of your terminology book) of cyanoacrylate into the crack and then put a few clamps on it for at least 3 days before scribe work begins. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Ludwigia Posted November 5, 2017 Share Posted November 5, 2017 9 minutes ago, Ptychodus04 said: True. If it were me, I would pour a stack (to take a page out of your terminology book) of cyanoacrylate into the crack and then put a few clamps on it for at least 3 days before scribe work begins. Yup. That should do the trick. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 5, 2017 Share Posted November 5, 2017 2 hours ago, Crann said: Used a pva mix around the edge to keep together so nothing pings off. Do you still have an open crack? You can pour some acetone in it to dissolve the bond. Then pour more thin PVA in it and clamp. I always clamp because even thin adhesives like cyanoacrylate will hold the two pieces slightly apart. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
RJB Posted November 5, 2017 Share Posted November 5, 2017 Hi Crann, is that one of those Apoderoceras ammo's? RB Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 5, 2017 Share Posted November 5, 2017 3 hours ago, RJB said: Hi Crann, is that one of those Apoderoceras ammo's? RB Just guessing here but I would say yes (using context clues such as the title of the post). Sorry, couldn’t help myself. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
JohnBrewer Posted November 5, 2017 Share Posted November 5, 2017 2 hours ago, Ptychodus04 said: Just guessing here but I would say yes (using context clues such as the title of the post). Sorry, couldn’t help myself. John Map of UK fossil sites Link to comment Share on other sites More sharing options...
RJB Posted November 5, 2017 Share Posted November 5, 2017 HA!!! Just saw that one myself now! Me not so smart sometimes??? RB Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 6, 2017 Share Posted November 6, 2017 3 hours ago, RJB said: HA!!! Just saw that one myself now! Me not so smart sometimes??? RB I’ve fallen victim to that classic blunder as well. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
RJB Posted November 6, 2017 Share Posted November 6, 2017 I’ve fallen victim to that classic blunder as well. What amazes me was that i was actually correct! But I remember a giant one of those posted on Fossil of The Month. RB Link to comment Share on other sites More sharing options...
Crann Posted November 11, 2017 Author Share Posted November 11, 2017 On 05/11/2017 at 12:24 AM, Ptychodus04 said: Had a little go today of trying to get around the spines, so far so good, tricky for sure, will do bit by bit. Link to comment Share on other sites More sharing options...
Ptychodus04 Posted November 11, 2017 Share Posted November 11, 2017 Looks good. Just take your time and it will be a cool ammonite. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Ludwigia Posted November 11, 2017 Share Posted November 11, 2017 1 hour ago, Crann said: Had a little go today of trying to get around the spines, so far so good, tricky for sure, will do bit by bit. Oh my! That's gonna be tricky with a scribe. Watch out for those tips!! You wouldn't have access to an air abrader, would you? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Crann Posted November 11, 2017 Author Share Posted November 11, 2017 1 hour ago, Ludwigia said: Oh my! That's gonna be tricky with a scribe. Watch out for those tips!! You wouldn't have access to an air abrader, would you? Air abrader would make complete sense once matrix removed but sadly no and no experience with using them... Link to comment Share on other sites More sharing options...
Ludwigia Posted November 11, 2017 Share Posted November 11, 2017 59 minutes ago, Crann said: Air abrader would make complete sense once matrix removed but sadly no and no experience with using them... The idea is to leave just enough matrix around the spines to keep them stable and then use the abrader to remove the rest of it. There's then just a minimal chance of them pinging off since you can adjust the pressure and there are no strong vibrations from the air scribe which could easily cause that to happen once you're down to the last millimeters. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
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