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Q about the plastic Ork sprues..... |
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stormseer
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Post subject: Q about the plastic Ork sprues.....  Posted: Sat Apr 05, 2003 9:45 pm |
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Viscount Charles
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Post subject: Q about the plastic Ork sprues..... Posted: Sun Apr 06, 2003 11:36 am |
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Joined: Tue Apr 01, 2003 10:49 pm
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I had some of the first-run sprues of Ork infantry, back when E40k was released, and I didn't notice any poblems with them.
I'm no expert on injection-moulded plastics, but I know the moulds are made of metal (rather than rubber-type compounds used in white metal moulding) and in theory should last a long time. They are also *incredibly* expensive to make - unlike a white metal mould that can itself be "re-cast" from the masters, a plastics mould is a precision-crafted hunk of metal that can cost tens of thousands of of pounds!
They can be damaged, however, by a number of things. Careless handling (which gets more likely once it is taken out of full-time use), and releasing "stuck" product is a great way to risk damaging the tool.
They will also wear out. Even though the steel they're made from is a lot harder than the plastic injected, the moulding process is carried out at high temperature and high pressure (I'll guess that the Epic range were cast on 20-tonne rated machines). Adding to the problems is the level of detail required on such tiny mouldings - which means the tool will be delicate and the plastic used will be quite hard.
I don't know enough of the specifics to guess at the lifespan of the Epic moulds, but I can well believe that some are a little worn or damaged now - and there's no profit in it for GW to commission new moulds 
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CyberShadow
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Post subject: Q about the plastic Ork sprues..... Posted: Sun Apr 06, 2003 3:34 pm |
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Location: Singapore
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I dont think that any of the Orks on my sprues were melted in this way. Trouble is, with the availability of Epic right now I dont know if you could get spares for this. Do you know what they were supposed to be?
_________________ https://www.cybershadow.ninja - A brief look into my twisted world, including wargames and beyond. https://www.net-armageddon.org - The official NetEA (Epic Armageddon) site and resource.
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Legion 4
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Post subject: Q about the plastic Ork sprues..... Posted: Sun Apr 06, 2003 5:33 pm |
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My 2 cents worth, I agree, the moulds are getting old. A year from now, it won't matter, all will be metal and plastic models will be like Elvis sightings ... 
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stormseer
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 12:52 pm |
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They were actually Ork Boyz, these damaged ones- You can see their legs, which are relatively undamaged, and are exactly the same as the undamaged ones.
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Jimbo
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 2:36 pm |
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my thoughts are that this is less a mould wearing out issue and more the plastic was not injected correctly issue
in other words not enough pressure was applied and therefore your corner was not injection moulded correctly - hence the "melting" look
if the mould had "worn" out you would not have a melting look, you would have a load of flash, usually around the mould lines
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Legion 4
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 4:09 pm |
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That makes sense too, Jimbo. But like I said, a year from now, it won't matter.  Elvis, Big Foot, Nessie, plastic sprues, etc., etc., ... 
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Chris
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 5:04 pm |
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I have had this problem a couple of times with SM's. Kinda like someone has blown a heavy flamer in their face. I also had a couple of devestsators that came off the sprue in two bits (not because I broke them)
I just put it down to bad mouldings
Cheers
Chris
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stormseer
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 6:52 pm |
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Thanks for all your thoughts everyone....
It seems strange that it is just these two guys in the corner that are damaged.. Thats an area about 2cm by 1cm, and I would think that if the sprue wasn't made /injected properly, then there might be a few more damaged models, and wouldn't the sprue corner be in a similar state- it is fine, and was this that made me think that it was the mould being old.....
hmmm... 
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Jimbo
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 8:51 pm |
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| Quote (stormseer @ 07 2003 April,18:52) | | It seems strange that it is just these two guys in the corner that are damaged.. Thats an area about 2cm by 1cm, and I would think that if the sprue wasn't made /injected properly, then there might be a few more damaged models, and wouldn't the sprue corner be in a similar state- it is fine, and was this that made me think that it was the mould being old..... |
not as strange as you may think
the sprue part is generally "filled" first and the "inside" is filled last (aka the Orks) therefore if the mould is not injected correctly then the last bit to be filled (the Orks) would not mould correctly_________________ Jimbo
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signius
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 8:54 pm |
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So, it is a question of poor workmanship? That isn't good. 
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Jimbo
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Post subject: Q about the plastic Ork sprues..... Posted: Mon Apr 07, 2003 9:09 pm |
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stormseer
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Post subject: Q about the plastic Ork sprues..... Posted: Tue Apr 08, 2003 8:52 pm |
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Thanks Jimbo- you know more about mini producton than me.. 
Hmm, yeah, about the quality control,.. as these sprues I got were in last months selling off, I would guess that they may well have been rejected, and having just been kicking about for ages, were deemed sellable..... 
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Viscount Charles
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Post subject: Q about the plastic Ork sprues..... Posted: Sun Apr 13, 2003 8:14 pm |
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Good point Jimbo. Either not enough plastic going in, or not running at the right pressure. Of course, might it be that they'd throttled back on the pressure setting a bit in order to preserve the life of the moulds?
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