Profit is a motivator, for sure, but I suspect the lack of information is driven by the fact that most of us are making up and figuring out how it all works as we go.
I own a carbon fiber company.
Even the reps selling me product don’t know what they’re talking about.
It’s ridiculous, really, and for a person to try to charge you for sharing the knowledge that they have not formally it and, well, I think that should be Considered borderline criminal.
Ok I may have found an excellent company and their simulation software for fiber injection mould systems.
You only need send them a 3D scale model of your female mould and they can do the rest. Or probably even can send them 3D model of just your product and teh software can do the rest, even identifying unfavourable areas of the product shape and allowing you to edit the product design if you want to improve its producability.You can play around with all variables (injection pressure, vacuum pressure, injection port positions, everything: Injection simulations to save cost of trial-and-error. There are some minor injection experiements you need to do on simple small sample mats to get the right flow-parameters to input their software.
You can buy the software outright and learn to use it yourself or pay them for one-off mould.
I just got my 3D female mould finished yesterday and am going to test them out. I will keep progress reports here in this thread -
http://www.polyworx.com/doc/usrman12.asp#p125
This sounds excellent as I would love to avoid resin-injection and just use vacuum-assisted (lower capital investment).
The OP example of VARTM (also called Prestovac) seems ideal to me HOWEVER I just realised too many fumes for me to run this in my domestic house. So I want to go with resin-injection where the resin and catalyst are contained. But would be great to be able to test a resin-injection with a air-pressurized chamber (up to 120psi) and vacuum below. I dont want buy a damn injection machine, they are too expensive for me right now.
The above software allows you to test all configurations and see the simulated result of the resin flow front.
I have this problem as well. Reichhold and the big companies you can only trust for consistent ISO9000 quality do not sell less than 25 44 gallon drums in one order.
This has created a middle-market of resellers so that small manufacturers can access the chemicals. Problem with that though is you notice that most of these companies dont have reps who understand squat about the products and technology they are selling and most of these reseller companies relabel the Originally-Reichhold resins with their own trademark, and usually have added fillers, and obviously could even lie about the Use-By date and sell products that really are already passed Reichhold’s original Use-By Date, and then us small businesses are trying to make a reliable manufacturing process that doesnt include nightmares and you ask Criminal? FROM THE VERY TOP!!!
And these reseller companies who add fillers and all this PLUS with reps who dont understand squat, AND these reseller companies dont have access to the testing equipment and ISO9000 standards of the original product therefore obviously they dont REALLY know what they are doing and this is the best us small manufacturers have access to. CRIMINAL??? DAMN STRAIT! It is the NEW WORLD ORDER conspiracy to destroy the middle-class and control the world of everything!
REICHHOLD should be forced by the local government to sell single 44 gallon drums as their minimum order so that small manufacturers can access quality guaranteed resins. No, no, but our corrupt government makes life too easy for Reichhold, excusing them any obligation to have support forums for us scum small manufacturers but giving them the whole market of the country at the same time, a total xxxxing monopoly. Scum should all be in prison.
meanwhile, I am going to do this small manufacturing business regardless. Look on the bright side of it - If you can find a process that works for you, the current ENTRY BARRIER for any competing small manufacturer is higher due to the volatility described above. This is a way to see it as an ADVANTAGE personally but generally my sentiments are expressed above.
I wrote to this company 3 weeks ago including copy of 3D mould in specified format they required. Got no reply yet. I guess they only talk with Israeli Airforce and punks like that.
Am still looking for consultant to finish this prestovac system.
try to call them, they might be busy. There are some other dutch companies who use their software to offer consulting, I can ask if you are interested. Send me your contact details and what you need (like part size) in a pm.
(I’ve talked to the owner a couple of years ago about working there 
)
There are some minor injection experiements you need to do on simple small sample mats to get the right flow-parameters to input their software
If you know those, it isn’t rocket size to determine the inlets and evac points/lines 
althoug the software is a lot easier with complex geometry/layups.