Runnriottt Posted January 5, 2009 Report Share Posted January 5, 2009 I am a little lost... Could have siliconed the master, made a mother for support and then plaster filled to a direct copy. The plaster molds look far to "off". If you are trying to make a vac mold, then all the details need to be ultra sharp. Sorry for the negative... Just being real. Keep trying, thats what it is all about man. Quote Link to comment Share on other sites More sharing options...
VacTrooper Posted January 6, 2009 Author Report Share Posted January 6, 2009 well... since i had plastic on hand, i decided that this would be more economical. plus, i'm totally down with a little sanding, shaving, and trimming to bring out the details. yes, these details are VERY soft, which is why i plan on doing LOTS of sanding... I could have used silicon, but that would have required waiting on shipping, something i'm aweful at doing. all about availability. thanks for the advice/critisism, though! Quote Link to comment Share on other sites More sharing options...
TK8776 jgarrettg Posted January 6, 2009 Report Share Posted January 6, 2009 Nathan's suggestion would definitely provide better results but I understand your economic delemma. Looking at your clay sculpt pictures and your vac forms there is a lot of degradation between the two. I'm guessing that the clay sculpts didn't hold up well to the vac form process. I suppose the solution would be to make the masters out of something more durable if you are going to skip the molding of a buck from the master. Even though you will be making new masters out of the plaster casts you should consider casting a buck anyway. The point is to do what ever you can to keep the masters away from the vac forming. Even though sculpting is fun. It's a lot of hard work and you'll never get the same piece twice. Keep up the great work Alex. I'm really enjoying watching your progress. Quote Link to comment Share on other sites More sharing options...
VacTrooper Posted January 7, 2009 Author Report Share Posted January 7, 2009 Yup! Another thing about the clay I used, it has sulfur which inhibits the cure of silicone. this was really a one-time thing... I'll try my hardest to bring them back! Quote Link to comment Share on other sites More sharing options...
Jumpin Jax Posted January 8, 2009 Report Share Posted January 8, 2009 Yup! Another thing about the clay I used, it has sulfur which inhibits the cure of silicone. this was really a one-time thing... I'll try my hardest to bring them back! Been there, done it. Just make sure the clay hardens/dries enough to not suffer under the vacuum. I use cheap clay, just gotta know how to finesse it. I tried freezing it once, the plastic crazed all over the place, unnecessary as it turned out. Quote Link to comment Share on other sites More sharing options...
VacTrooper Posted January 8, 2009 Author Report Share Posted January 8, 2009 huh. that's crazy! LOL If anything, I would think one would try to fire it in an oven or something, at least then it's warm for the plastic to grab on to... but, then again.... i dunno. This meathod worked, but i just put a little more work on the table... oh well... that's life. Quote Link to comment Share on other sites More sharing options...
TK8776 jgarrettg Posted January 9, 2009 Report Share Posted January 9, 2009 That's how we learn. No effort is wasted. Quote Link to comment Share on other sites More sharing options...
1226[501st] Posted July 27, 2009 Report Share Posted July 27, 2009 (edited) Aww... I think you hurried way too much with the sculpt. You should have hundreds of photos of originals, or at least good replicas (AP, TE, TE2) printed out for constant reference. All possible angles. Then you should cast plaster over the clay model, remove the clay, spray some paint into the inside of the negative mould so that resin wouldn't stick, then brush resin in there, lay fiberglass, brush more resin, lay more fiberglass, brush even more resin... That way you'll get an excellent positive mold made of rock-solid fiberglass. You'll be able to sand it, use putty on it, sand it more... And make it real smooth and nice. Here's how I did my original sculpt: http://img504.imageshack.us/img504/5474/dsc41yh1.jpg http://img183.imageshack.us/img183/9421/dsc0002lp5.jpg http://img45.imageshack.us/img45/5263/dsc0209vz4.jpg http://img512.imageshack.us/img512/2844/dsc0008ei0.jpg http://img240.imageshack.us/img240/3928/dsc0001xv7.jpg And final result: http://img413.imageshack.us/img413/3572/dsc2788.jpg http://img190.imageshack.us/img190/4082/dsc2916.jpg note however that I simply assembled a helmet out of the fiberglass parts, just for the heck of it. Ideally, these should be used for vacuforming over them - the resulting helmet wouldn't be so rough. Well, it was a different technology, though... Anyway, I'm most interested in your progress - I'm dying to see how the next stage of the sculpting goes. I'm sure you gen carve the right shape out of the plaster - good luck! Edited February 1, 2021 by Sly11 Images not recoverable Quote Link to comment Share on other sites More sharing options...
VacTrooper Posted November 18, 2009 Author Report Share Posted November 18, 2009 WOW! It's been a while. STILL working on this, though. I have everything "FINISHED" except the face. I'm doing a lot to make it JUST right. I need more plaster... LOL, I thought about starting over on the face, though, because clay is pretty darn easy to work with. A little easier than plaster. Quote Link to comment Share on other sites More sharing options...
NAZGÛL Posted November 19, 2009 Report Share Posted November 19, 2009 Thats very nice! The gloves might need to be replaced. Quote Link to comment Share on other sites More sharing options...
djloud Posted February 19, 2010 Report Share Posted February 19, 2010 for vaccume forging after you make your molds maybe you should spray some teflon over them so they dont stick jist an idea i had cause i was going to try to do that and see if it worked lol Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.