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Other Stuff => Workbench => Topic started by: Kikuchiyo on 25 September 2025, 04:30:13 PM

Title: Anyone tried Bluestuff moulding?
Post by: Kikuchiyo on 25 September 2025, 04:30:13 PM
I've a few out of production bits I need more of and thought I'd try my hand at a bit of moulding rather than trying to sculpt what I need.

 I was wondering if anyone had any tips?
Title: Re: Anyone tried Bluestuff moulding?
Post by: aircav on 25 September 2025, 04:35:05 PM
Yes, Ive tried it on a home made wrapped body,

I wrot a bit about it on here

https://theaircavsaga.blogspot.com/2025/09/the-hollow-re-skin-wrapped-dead-body.html (https://theaircavsaga.blogspot.com/2025/09/the-hollow-re-skin-wrapped-dead-body.html)

(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirypBygDg13US5pu91mTFhZYwePY5mNVhho5X1tHleDfIvob4kRiCRxYTVqyZY4F9zA_-w6G5caYvOIDnzH5ipZIALX6KBWlofwkz3trd-n_Xb_s0bJQGyOZkh6qbeFYEIImSHq2n7RNxdKHn_8GXFUGpDNw2aWpJmiBr6ON1CwMgTJqyc1xivxLTRWqA/s4080/20250813_072854026_iOS.jpg)
Title: Re: Anyone tried Bluestuff moulding?
Post by: Daeothar on 25 September 2025, 04:55:48 PM
You mean Oyumaru? It comes in every colour imagineable  (Mine's clear for instance).

But yes; I've used it many times and find it really useful too  :)
Title: Re: Anyone tried Bluestuff moulding?
Post by: Citizen Sade on 25 September 2025, 06:00:23 PM
Certainly looks like it. Oyumaru was repackaged, marked up and sold as InstantMold at one point. It now looks like GSW are in on the act.

Tips? A lot depends of what you're trying to do with it. Simple one piece moulds for copying single surfaces. Two part moulds (with lugs for alignment formed with the end of a paintbrush or similar) for when you want both sides.

Putty shouldn't stick to it so there shouldn't be any need to lubricate your mould. Pick a putty that suits your needs. Some swear by a mix of green stuff and Milliput for capturing detail and not breaking easily. You probably want something you can readily carve or sand to get rid of any flash. Best to have a play & see what works for you.

FWIW, my latest experiments have been with Geomfix which sets hard, tough and replicates detail well. It can be carved and sanded.

Title: Re: Anyone tried Bluestuff moulding?
Post by: Panzer21 on 25 September 2025, 07:15:40 PM
I moulded some 1:87 M3 halftrack track assemblies for Roco Minitanks missing one each, using blue stuff for the mould. Greenstuff was pushed in and was flexible enough to be removed. Some bits didn't mould very well, but it was good enough.
Deep undercuts may be a problem.
Neil
Title: Re: Anyone tried Bluestuff moulding?
Post by: Supercollider on 25 September 2025, 08:53:43 PM
I made a little press-mold jig out of lego; basically a chamber made from walls using regular bricks, and a plunger with flat tiles on the bottom to squish everything down while hot.

I used it to create some control panels for sci-fi terrain.

(https://live.staticflickr.com/1468/24759600362_88365f2dc8_c.jpg) (https://flic.kr/p/DHVqzq)

(https://live.staticflickr.com/1481/24529821513_fef3347309_c.jpg) (https://flic.kr/p/DnBKk8)
Title: Re: Anyone tried Bluestuff moulding?
Post by: Daeothar on 25 September 2025, 09:06:33 PM
I made a little press-mold jig out of lego; basically a chamber made from walls using regular bricks, and a plunger with flat tiles on the bottom to squish everything down while hot.

I used it to create some control panels for sci-fi terrain.
Nice; that worked especially well.

I've only used free moulding so far, but a jig will allow for far less warping and higher pressure, making for sharper moulds. I will try this; thanks :)
Title: Re: Anyone tried Bluestuff moulding?
Post by: Kikuchiyo on 27 September 2025, 03:23:22 PM
Great, looks like the project is a go once I've grabbed some
Title: Re: Anyone tried Bluestuff moulding?
Post by: Moriarty on 27 September 2025, 06:01:17 PM
I’m making a start on a F&IW project using Blue Stuff and Spencer Smith minis as a base.
Title: Re: Anyone tried Bluestuff moulding?
Post by: Gunbird on 27 September 2025, 06:02:33 PM
I do the same as Supercollider, it really improves your moulds and results by a big factor.

I use(d) it a lot to make destroyed tanks and vehicles in 1/300 and 1/600 as it is a bit of a waste to destroy perfectly good models otherwise, but also for small scatter items I only ever had 1 of. 
Title: Re: Anyone tried Bluestuff moulding?
Post by: AdamPHayes on 28 September 2025, 03:49:02 PM
I’m making a start on a F&IW project using Blue Stuff and Spencer Smith minis as a base.


That looks like a lot of time spent carving away flash  :? A good way to produce something unique though, with a bit of modification to your master figure.
Title: Re: Anyone tried Bluestuff moulding?
Post by: Moriarty on 28 September 2025, 04:22:21 PM
It’s a ‘retirement project’ ;-) The mounted officer will, with luck, have one hand shading his eyes when I’m finished. As I’ve worked with SS plastics before, I’m used to carving flash! Only looking at 50 figures, anyway - just enough for a skirmish using Featherstone’s rules.
Title: Re: Anyone tried Bluestuff moulding?
Post by: AdamPHayes on 28 September 2025, 10:17:27 PM
You have more patience 5am me. (He says, sat here making 40 powder horns for Jannisary conversions!)