Green Stuff Cast Heads

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Green Stuff Cast Heads - Push Molds; Featuring Digits's thumb!
Topic Started: 19 Jul 2011, 10:17 PM (4,683 Views)
# Digits	19 Jul 2011, 10:17 PM Post #1
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	OK, though I have demonstrated and explained this a few times I still keep getting asked how come the GS heads I use for my Drogan 23rd come out so well. So a succinct tutorial on "push molds". Once you have created your head, glue the crown directly to a small tiddly wink or child's mosaic piece like this one. This in turn will create the "well" into which it will be easier to push the GS and which will make removal of excess gs once cured that much simpler. Make a rubber mold. Don't skimp on the rubber. This process only truly works if there is solid rubber around the head. It is this that will help to expel excess GS and ensure the detail is picked up. Also, use a LITTLE amount of liquid Vaseline painted into the detail of your head before pouring the rubber. This helps both with the rubber finding the nooks and crannies AND with the final release of the master from the mold. Using your blob of freshly mixed (therefore soft) green stuff, force it into the mold with your finger / thumb for a good 30 seconds. Keep forcing the gs into the hole. Then let it rest. You will over the next two minutes see the mold expel the excess GS. If you don't, you didn't use enough GS. Don't be tempted to recover the excess, leave it now over night or for at least 6 hours. You can now remove the head from the mold. Carve off the excess GS and it's done. Stick to this basic method and you should get a better than 90% sucess rate on each cast. I keep a few of these mini molds nearby so that every time I use gs for something else, I can use a little for the push molds. Edited by Digits, 20 Jul 2011, 08:25 PM.



Marshal2Crusaders	20 Jul 2011, 01:04 AM Post #2
Warrant Officer First Class Posts: 749 Group: Comrade Member #303 Joined: January 4, 2008	Will the rubber not wear out when u extract the dry head?



# El Diablo	20 Jul 2011, 09:02 AM Post #3
Warmaster Of Chaos Posts: 5,285 Group: Root Admin Member #55 Joined: September 22, 2007	Marshal2Crusaders 20 Jul 2011, 01:04 AM Will the rubber not wear out when u extract the dry head? Im guessing that'll be another reason to have thick walls on the mold. Excellent walkthrough chief. Edited by El Diablo, 20 Jul 2011, 09:02 AM.



Daemon-Forge	20 Jul 2011, 12:57 PM Post #4
Major Posts: 5,723 Group: Comrade Member #32 Joined: September 21, 2007	good tut Digits



# Digits	20 Jul 2011, 07:14 PM Post #5
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	Marshal2Crusaders 20 Jul 2011, 01:04 AM Will the rubber not wear out when u extract the dry head? Well so far I've used that mold on that head about 40 odd times. As Steve says, don't skimp on either the rubber quantity OR the quality of rubber. And before you ask, this is what I use. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220432590506&ssPageName=STRK:MEWAX:IT Cheers fellas. Edited by Digits, 20 Jul 2011, 07:16 PM.



Commander Von Drake	20 Jul 2011, 07:26 PM Post #6
Warrant Officer First Class Posts: 796 Group: Comrade Member #1,425 Joined: January 1, 2010	Cheers Digits very nice. might have to have a try.



# Marovian	21 Jul 2011, 12:09 PM Post #7
High Lord Admiral of the Imperial Fleet Posts: 10,751 Group: Super Admin Member #72 Joined: September 24, 2007	Good tutorial, certainly one to remember. Would work well on a lot of things I take it - torsos, packs etc?



# Digits	21 Jul 2011, 05:37 PM Post #8
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	Of course. I've even done legs with it.



☺Dave38x	23 Jul 2011, 05:36 PM Post #9
DubDubDubDubDub Posts: 13,949 Group: Honour Guard Member #252 Joined: November 28, 2007	Wicked dave, will need to try this sometime (for those times i cant be faffed with resin)



Shortsonfire79	20 Aug 2011, 06:53 AM Post #10
Lieutenant Posts: 2,809 Group: Comrade Member #358 Joined: February 15, 2008	Great tutorial, really helped last time you explained it.



steviewhitt	15 Oct 2011, 04:51 PM Post #11
Warrant Officer Second Class Posts: 243 Group: Comrade Member #1,978 Joined: October 8, 2011	Fantastic tutorial, i hope to try it out very soon. I have one question though, and i hope i don't sound too stupid! how do you actually get your cast head out of the mould without spoiling said mould? Hope you can help. Edited by steviewhitt, 15 Oct 2011, 05:25 PM.



☺Dave38x	15 Oct 2011, 04:53 PM Post #12
DubDubDubDubDub Posts: 13,949 Group: Honour Guard Member #252 Joined: November 28, 2007	Just pull it out, Silicone is nicely flexible and very forgiving



# Digits	15 Oct 2011, 05:04 PM Post #13
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	What he said. Again, I stress, don't skimp on the amount of rubber.



steviewhitt	15 Oct 2011, 05:26 PM Post #14
Warrant Officer Second Class Posts: 243 Group: Comrade Member #1,978 Joined: October 8, 2011	Thanks Guys



steviewhitt	21 Oct 2011, 09:11 PM Post #15
Warrant Officer Second Class Posts: 243 Group: Comrade Member #1,978 Joined: October 8, 2011	I notice Digits, that there looks like two moulds in your cast? I assume this works fine? also how deep do you make the cast, (is it an aerosol lid you've used?)



# Digits	21 Oct 2011, 11:40 PM Post #16
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	Use whatever suits, there are no hard fast rules. As for multiplle moulds, so long as they are not too close they will be fine.



fireangel	16 Dec 2011, 03:31 PM Post #17
Second Lieutenant Posts: 914 Group: Comrade Member #1,876 Joined: June 21, 2011	Cool. Thank for this tutorial. I will be looking into doing this.



Whitehorn	16 Dec 2011, 11:13 PM Post #18
Colour Sergeant Posts: 179 Group: Comrade Member #1,487 Joined: February 24, 2010	For a cheaper, reusable mold, I use this stuff: http://www.coolminiornot.com/shop/instant-mold.html It never sticks to greenstuff, s you can either leave the putty in to cure, or press the putty against another surface (I used the base of a paint brush) to press a load of heads and then let them cure outside the mold. I used this to create heads, shoulder pads, chests, anything really. It's a great little product.



DaHedd	25 Jan 2012, 09:28 AM Post #19
Warrant Officer Second Class Posts: 381 Group: Comrade Member #725 Joined: October 1, 2008	well my 1st attempts over the last few days have failed miserably. Cant seem to force enough GS into the moulds end up with half moulded bits. Im thinking that because ive put multiple heads (4) into the same piece of rubber that each time i force more gs into the moulds im mis-shaping the one next to it. So next plan is to try little individual moulds. If that doesnt work ive bought resin from ebay and i`ll try that next. Off topic ... how the hell can GW get away with charging what they do for GS when i got 36inches of the stuff off ebay for �8. Edited by DaHedd, 25 Jan 2012, 09:29 AM.



# Digits	25 Jan 2012, 11:07 PM Post #20
Shadowkin Posts: 18,947 Group: Super Admin Member #6 Joined: September 18, 2007	Make sure your gs is soft and pliable. Have you created the "well" as I have above? If so, use a bigger bit of gs then you really need and keep forcing it in with your thumb. As for multiple heads, so long as you have not skimped on the rubber, that shouldn't be an issue. Just use bigger bits of gs.



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