chrisrope Posted August 14, 2017 Share Posted August 14, 2017 I was half contemplating cashing in on my Airfix Buccaneer before the Tanmodel arrives. Before I did, I went round it with clamps and tape and it actually lines up pretty well, must have a decent one. My question now I have it taped up where it should all line up, would a dunk in hot water then cold water change the memory of the plastic so it would put up less of a fight when I come to build it. Ive decided to keep it so wondering if it's worth a try Cheers Chris 4 Link to comment Share on other sites More sharing options...
huvut76g7gbbui7 Posted August 14, 2017 Share Posted August 14, 2017 We will wait with baited breath for the test results Link to comment Share on other sites More sharing options...
Corsairfoxfouruncle Posted August 14, 2017 Share Posted August 14, 2017 (edited) I say keep it chris. It might be awhile for Tanmodel and way more expensive. Edited August 14, 2017 by Corsairfoxfouruncle Link to comment Share on other sites More sharing options...
Alex Gordon Posted August 14, 2017 Share Posted August 14, 2017 Build it as it is Chris,you're half way there. Here's one of mine 1 Link to comment Share on other sites More sharing options...
neilh Posted August 19, 2017 Share Posted August 19, 2017 On 14/08/2017 at 3:31 PM, chrisrope said: I was half contemplating cashing in on my Airfix Buccaneer before the Tanmodel arrives. Before I did, I went round it with clamps and tape and it actually lines up pretty well, must have a decent one. My question now I have it taped up where it should all line up, would a dunk in hot water then cold water change the memory of the plastic so it would put up less of a fight when I come to build it. Ive decided to keep it so wondering if it's worth a try Cheers Chris That treatment works for resin, not so sure its a good idea for Polystyrene. May be a plastics scientist around on the site who would know, but I don't think plastic has memory like resin. it would probably just warp or melt with too much heat. Be better to add tabs from plastic card on the joint lines and then once assembled they will add strength to the joints against any strain from the " warp". You could always add some epoxy on the inside of any visible seams to add a bit more long term strength. Link to comment Share on other sites More sharing options...
John R Posted August 19, 2017 Share Posted August 19, 2017 Give it a go. Some years ago I built a Campini Caproni CC2, an old thing produced by Delta. It was all horribly warped and I tried to get the fuselage sides parts to mate by forcing them into position and holding them together whilst the glue set but it ended up being bent like a banana. I separated them and taped each to piece of stout metal sheet and soaked them in hot water for a while and then left them to cool. Afterwards I was able to complete the model ( its in RFI somewhere). Don't use very hot water. I came a cropper when I did it on an earlier model using near boiling water. It went soft and shrank and I ended up with more warps than I started with. I think that it needs a longish soak at moderate heat to allow the plastic to be heated all through. The water should be just too hot to leave your hands in, if I remember correctly. You can always try a higher temperature if it doesn't work. John 1 Link to comment Share on other sites More sharing options...
RMP2 Posted August 20, 2017 Share Posted August 20, 2017 Would it be worth fitting the bomb bay door before attempting it? Just thinking it might help things turn out a little more to shape? Link to comment Share on other sites More sharing options...
chrisrope Posted August 20, 2017 Author Share Posted August 20, 2017 Yeah I've read it can be easier once the cockpit and bomb bay are in. I have an etch set for the cockpit so I'll just put the bomb bay in. I'll put a load of pegs and cable ties on it and give it a soak. I'd try it today but I've got ikea drawers to put up Link to comment Share on other sites More sharing options...
Massimo Posted August 21, 2017 Share Posted August 21, 2017 I'll have to go through this too, so I' ll keep watching! Link to comment Share on other sites More sharing options...
Sebastien Posted August 27, 2017 Share Posted August 27, 2017 On 14/08/2017 at 4:31 PM, chrisrope said: My question now I have it taped up where it should all line up, would a dunk in hot water then cold water change the memory of the plastic so it would put up less of a fight when I come to build it. Ive decided to keep it so wondering if it's worth a try Cheers Chris Hi Chris, The hot water dunk isn't necessary. Start glueing the fuselage parts at a trailing side, then work your way around the fuselage by glueing inch by inch and letting the glue cure every time. You should be alright in the end. Cheers, S. Link to comment Share on other sites More sharing options...
qn30jEkPz7 Posted August 27, 2017 Share Posted August 27, 2017 Polystyrene has a glass transition temperature (the point at which the polymer chains have enough thermal energy to wriggle past each other and realign) of about 107degrees C so hot water won't be quite enough on a quick dunk but there is some time dependancy in that it'll flow below this temperature but quite slowly (see the Aberysthwith or Queensland bitumen drop experiments for examples) Water at just shy of boiling topped up a few times so it has a long immersion has a good chance of working. I'd suggest clamps or a jig though as the polymer in your tape adhesive will have given up the ghost at that temperature. 5 Link to comment Share on other sites More sharing options...
RMP2 Posted August 31, 2017 Share Posted August 31, 2017 On 27/08/2017 at 10:06 AM, LostCosmonauts said: Polystyrene has a glass transition temperature (the point at which the polymer chains have enough thermal energy to wriggle past each other and realign) of about 107degrees C so hot water won't be quite enough on a quick dunk but there is some time dependancy in that it'll flow below this temperature but quite slowly (see the Aberysthwith or Queensland bitumen drop experiments for examples) Water at just shy of boiling topped up a few times so it has a long immersion has a good chance of working. I'd suggest clamps or a jig though as the polymer in your tape adhesive will have given up the ghost at that temperature. Nice info re the temperature. Off topic, but such things are dealt with at my work for stress relieving carbon steel and alloys of such. Also digging in books at work helped solve a claim of alloy wheels being embrittled through powder coating ovens... I digress, but... I do love to know the science, accurate science, that means things work. ps - yes, I have an Airfix Bucc waiting for me to grow the veg to tackle it. 1 Link to comment Share on other sites More sharing options...
hairystick Posted September 12, 2017 Share Posted September 12, 2017 Quite honestly I'd not bother with the hot bath. I have mine together now and simply working around the fuselage join an inch at a time then moving along will get a good result. Just take your time. Link to comment Share on other sites More sharing options...
chrisrope Posted September 12, 2017 Author Share Posted September 12, 2017 13 hours ago, hairystick said: Quite honestly I'd not bother with the hot bath. I have mine together now and simply working around the fuselage join an inch at a time then moving along will get a good result. Just take your time. I think you're right and probably the route I will take. It was just a theory that might work for twisted wings but perhaps not in this case. I will leave it all aligned and taped up till I get round to building it to see if it has any effect I've just acquired a second Bucc in a favourable trade though I haven't checked the 'fit' on it yet as it's still sealed Link to comment Share on other sites More sharing options...
hairystick Posted September 13, 2017 Share Posted September 13, 2017 22 hours ago, chrisrope said: I think you're right and probably the route I will take. It was just a theory that might work for twisted wings but perhaps not in this case. I will leave it all aligned and taped up till I get round to building it to see if it has any effect I've just acquired a second Bucc in a favourable trade though I haven't checked the 'fit' on it yet as it's still sealed You have acquired a second Airfix Bucc? I can give you the name of a very good psychologist... Link to comment Share on other sites More sharing options...
chrisrope Posted September 13, 2017 Author Share Posted September 13, 2017 19 hours ago, hairystick said: You have acquired a second Airfix Bucc? I can give you the name of a very good psychologist... Spur of the moment but it did help clear some unwanted kits from the stash. Good job the Bucc is in my top 5 faves or I'd be kicking myself. Who knows, if the Tanmodel turns out to be a clunker, I'm sitting on a goldmine 2 1 Link to comment Share on other sites More sharing options...
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