Christer A Posted May 22, 2018 Author Share Posted May 22, 2018 I was more referring to the amount of filler I'd use to plug those gaps in the second to last picture. No need to do some special abrasive surface treatment on the parts, let me have some fun with them! 4 Link to comment Share on other sites More sharing options...
perdu Posted May 22, 2018 Share Posted May 22, 2018 I really think wiping some Mr Dissolved Putty over the surface will fix that They are very lightly impressed bubble imprints 1 Link to comment Share on other sites More sharing options...
perdu Posted May 23, 2018 Share Posted May 23, 2018 Next fail, but this is better Soon be there Too much sunlight but as its a frail anyway this is showing I'm on track Needs more attention to wingtips and bubbles, is all Lots of flash to throw away 4 1 Link to comment Share on other sites More sharing options...
Christer A Posted May 23, 2018 Author Share Posted May 23, 2018 I like the fact that the casting is exact enough to even pick up the ejection pin marks of the originals! How much resin is used for each pour? 1 Link to comment Share on other sites More sharing options...
perdu Posted May 23, 2018 Share Posted May 23, 2018 Im using about sixteen or seventeen ml per pour, the trouble I'm having is losing some as it sets through the cutaways left for opening the mould I may try a remould using a different pattern of framing, we'll have to see how today goes I'm really enjoying this, alchemy Still waiting for the gold ones to pop out though Anyway, must go the most recent fill is almost ready for 'the reveal' Catch you in a short while 3 Link to comment Share on other sites More sharing options...
Christer A Posted May 23, 2018 Author Share Posted May 23, 2018 I'll sit tight in the meanwhile, keeping up the illusion of work 1 1 Link to comment Share on other sites More sharing options...
Terry1954 Posted May 23, 2018 Share Posted May 23, 2018 A master alchemist at work, clearly. 1 1 Link to comment Share on other sites More sharing options...
perdu Posted May 24, 2018 Share Posted May 24, 2018 You'll be lucky Er message to Christer and Crisp I am not happy with the present moulds and will be trying ...something else Refinement beckons Laters guys 1 Link to comment Share on other sites More sharing options...
Christer A Posted May 24, 2018 Author Share Posted May 24, 2018 Refinement? Well, you're the expert, I'm sure you know what your doing. It sounds exciting to say the least! 1 Link to comment Share on other sites More sharing options...
perdu Posted May 25, 2018 Share Posted May 25, 2018 Ah well, I'm no expert which was one reason I offered to help out This way I get to learn what works and does not I found that plan A was OK but not very effective So now I am trying plan B which means letting air bubbles rise unrestricted instead of trapping them under the 'best finished' surface Hence I trying this method of a: making the fill zone wider and b: allowing an escape route for mixed air in the resin The two sticks attached (only with cockpit glue Crisp, it will pull off later) will be at the bottom of the casting mould and will I hope show there is a full mould when the resin dribbles through Old PC World giveaway CDs provide me with all sorts of useful clear glazing pieces, this might be the best use so far for discards First piece inside the part built case. Allowing some space at the back for latex to cure and now the next piece will be mounted The second part now in place, before I close the box all the edges where the kit bits sit will be sealed with cockpit glue so there is a defined piece of mould for resin to fillfill When everything has set I will lay a top section on the starboard wing end piece with sellotape, hopefully the sellotape will permit easier separation of mould halves That didn't work last time when I sprayed silicone in layers, a solid film might be better We'll know soon enough ☺ 6 1 Link to comment Share on other sites More sharing options...
Christer A Posted May 25, 2018 Author Share Posted May 25, 2018 Those sticks to allow bubbles to evacuate is a great ideal. I'd say that option B looks a lot more professional 1 1 Link to comment Share on other sites More sharing options...
gunzo Posted June 5, 2018 Share Posted June 5, 2018 Hi Perdu You describe your mould material as latex rubber (ie tree sap)- if indeed the case, I have found this to be a b---er for shrinkage when casting resin- so much so I'm convinced some of the more notorious commercial casters must be using it! Silicone RTV is far more stable. Actually, latex moulds will shrink anyway over time and to a surprising degree. Link to comment Share on other sites More sharing options...
perdu Posted June 6, 2018 Share Posted June 6, 2018 Don't fret dear chap, the moulding material is returning 'same size' castings, my present problem is me! I have been attempting to cast both at the same time and this has caused me problems getting a suitable fill quotient into the 'holes' Coupled with a disability brought on by a bad back this meant not much time to spare in the garage However a general improvement in health allows me time to see if I can pop out a couple this morning I'll be reporting back later Christer I am sorry this has taken so b..... long to get them out, should be at the Post Office this week There will also be Mail for west of the meridian Tony, getting out can be a bit of a trial just lately 1 Link to comment Share on other sites More sharing options...
Terry1954 Posted June 6, 2018 Share Posted June 6, 2018 On 5/25/2018 at 1:36 PM, perdu said: hopefully the sellotape will permit easier separation of mould halves That didn't work last time when I sprayed silicone in layers, a solid film might be better I'm liking the sellotape idea to get a better release for the silicone to silicone, nice idea. I sometimes have similar trouble in separating the silicone halves. Terry 1 Link to comment Share on other sites More sharing options...
perdu Posted June 6, 2018 Share Posted June 6, 2018 Calling these done Christer No heating of the donor shapes, so no distortion, Thank you for the loan Crisp I need to get to the Post Office now/this week Packages for Ireland Norway and Salisbury to post Casting surfaces are the same as the mouldings, although there is flash to remove The voids visible are air trapped between each side skins, they do not affect the actual surface yeehaw, another experiment hits the ground running, I'm moderately chuffed 6 1 Link to comment Share on other sites More sharing options...
AdrianMF Posted June 6, 2018 Share Posted June 6, 2018 Brilliant work on the castings Bill! Absolutely marvellous. For Christer it might be worth digging out the largest bubble cavities during construction and filling them so that there isn't a nasty accident with a fragile surface later on... Regards, Adrian 1 Link to comment Share on other sites More sharing options...
Christer A Posted June 6, 2018 Author Share Posted June 6, 2018 Wow, those look fantastic! I just hope that you'll send them to me in Sweden though. Norway is what off 1 1 Link to comment Share on other sites More sharing options...
perdu Posted June 6, 2018 Share Posted June 6, 2018 Oh Ithought you would like a trip dohhhh 3 Link to comment Share on other sites More sharing options...
perdu Posted June 6, 2018 Share Posted June 6, 2018 2 hours ago, AdrianMF said: Brilliant work on the castings Bill! Absolutely marvellous. For Christer it might be worth digging out the largest bubble cavities during construction and filling them so that there isn't a nasty accident with a fragile surface later on... Regards, Adrian I suppose that is a good idea, maybe pump a little superglue gel in the inner face of the holes or something I wouldnt like to attack them myself though, hate to have to fiddle about with somebody else's model Link to comment Share on other sites More sharing options...
Terry1954 Posted June 6, 2018 Share Posted June 6, 2018 5 hours ago, perdu said: Calling these done Christer Amazing castings Bill, but that means you have actually made something in 1/48 .................... maybe its time to go to One True Scale confession? 🤣 Brilliant stuff. Terry Link to comment Share on other sites More sharing options...
perdu Posted June 6, 2018 Share Posted June 6, 2018 I'm already paying for my sins Terry The penance is no driving or beer for a few days Back now on the one-true scale, phew 2 Link to comment Share on other sites More sharing options...
CJP Posted June 7, 2018 Share Posted June 7, 2018 You've really done some great casting here Perdu & made this Sea Vixen a goer again - pressures on you Christer A as we are all waiting to see this one finished CJP 1 Link to comment Share on other sites More sharing options...
perdu Posted June 7, 2018 Share Posted June 7, 2018 Nah, the pressure is on me and The Post Office for a day or so Christer, one of the air bubbles is thin enough to distort it so filling it from the back is an excellent idea I'll send you the good uns and a couple of the fails in case you feel like using them as patchpieces just because... 2 Link to comment Share on other sites More sharing options...
Christer A Posted June 7, 2018 Author Share Posted June 7, 2018 Pressure makes diamonds they say... (or not! http://dilbert.com/strip/1998-02-28) Bill, I look forward to whatever you'll send, and I hope that all postal services involved don't to their utmost to sabotage this shipment. Over here we have something called Postnordlotteriet which is a pun on Postkodlotteriet that comes from the unholy marriage of the Swedish version of Who wants to be a millionaire with a postal code lottery. Let's just say that sending stuff through the postal office over here (The Swedish Postal office merged with the Danish Postal office almost a decade ago and formed Postnord) is a lottery nowadays and one never knows when stuff will arrive anymore. 2 Link to comment Share on other sites More sharing options...
Christer A Posted June 14, 2018 Author Share Posted June 14, 2018 Today I recieved a padded envelope with quite a few injunctions to post office people that the contents are fragile, and not bendable, so please handle with care. All the dots it the streetname was also present, top marks for that! In it, I found this: Ok, these are the bad ones... I must say that the finish is really good, probably equal to Arifix plastic more or less. I'm going to test both primer, filling air bubbles ,sanding and gluing on these before proceeding with the main course: Ah yes! Fully formed, with all the contours in the right places and just one area were the resin has sunken a bit, but all in all this is excellent! I'd never been able to produce this myself, in any form. Bill, Crisp - you two are too kind, and I cannot thank you enough! Now, let's get this show back on the road! 10 2 Link to comment Share on other sites More sharing options...
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