By GBDRE760
#4904067
Hey guys....
I ended up getting my hands on a few parts that go to the ghost trap, like all of the knobs, which I am sure I will have to remove the setscrews to cast them. Either that or leave them in and the little areas would just turn into areas you would want to drill out. I also got my hands on the Ghost trap light and resistor as well as a few pack parts. I want to start resin casting these things asap.
I am familiar with Smooth-On products. I think they are great. I used their silicone years back to make a Freddy mask.
I'm curious, when it comes to resin and silicone, what do you guys think is the best? I am a little skeptical of using Alumilite or whatever it is from my local hobby shop. Smooth-On might as wells be ordered because the nearest place that has it is close to 2 hours away in North Hollywood.
By likesjellydonuts
#4904075
My experience of using alumilte, has actually been less problematic than smooth on. Smooth on is good, but you're mostly paying for the name.
By Weideman
#4904079
I've used alumilte products once as it was the only thing I could get my hands on (I live a rural part of AZ and it was either order smooth on and wait or grab what I could find at the local hobby shop). It wasn't bad stuff, had some issues that I think were related to how long it sat on the shelf before I bought it but my only complaint was the price. It was relatively expensive compared to what I could have gotten elsewhere if I was more patient. For what you are doing though, it should work just fine.
By GBDRE760
#4904108
Thanks for all of the answers guys. I ended up ordering some Smooth-On products from Reynolds Advanced Materials.
First I kinda got lost reading a lot of descriptions on Smooth-On's website and then I settled on a few products but I think my reasons may be valid....

I got:
Mold Star 16 FAST - It is tear resistant and exhibits very low long term shrinkage.

Smooth-Cast ONYX - Although it is heat resistant (which is not why I chose it but hey, it won't warp like 3D printed PLA, lol) I wonder if it is impact resistant? It comes out a deep dark black, which is perfect for things like ghost trap knobs and Clippard Valves, but it can also be buffed to a glossy black, again, perfect for some of the knobs. Other than that, sand it, primer, and paint it.

Thanks guys. Maybe I will take pictures and post them as I play around with the process and give my input on the outcome of the products. Don't get me wrong, I do own a 3D printer and yes you can do some amazing stuff with it but if you need certain parts quicker than you can print them then I truly think resin casting would be the way to go, not to mention I think resin casting off of the REAL parts would add a perfect touch of realism to any 3D printed proton pack or ghost trap.
By GBDRE760
#4904498
Hey guys... As promised, I am back with pictures. I decided to start molding Ghost Trap Parts first.....

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These are my production molds
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Here are my original parts.....
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AND NOW...... THE RESULTS......

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SO.... How do you guys think I did?
I have some Smooth Cast 65D on the way too. I probably should have gotten the black tint with that so I wouldn't have to paint them. I like how the Onyx comes out black already but I know it never hurts to try other things and see what you like. I will be doing more runs of these. I am also getting into sticker making. I am going to be doing white vinyl and metallic vinyl I am just sourcing a contour cutter at the moment so when I do stickers, nobody has to sit right there trying to cut them out, lol.
Glenn Frederick, feevrt liked this
By Styrofoam_Guy
#4904511
Pretty good results. I see a few air bubbles but as you refine your casting technique you can get better castings.

The smallest items look a bit rough but I don't know if that was the original part finish. Hard to tell in the photo with the original parts.

The small knobs and the one with the knurl looks great.
By GBDRE760
#4904513
Pretty good results. I see a few air bubbles but as you refine your casting technique you can get better castings.

The smallest items look a bit rough but I don't know if that was the original part finish. Hard to tell in the photo with the original parts.

The small knobs and the one with the knurl looks great.
Thanks! I'm very happy with them. I'm going to cast some more tomorrow. I Think what did it (the texture / bubbles) to me was the mold release because my Tear Drop knob doesnt have that texture and when I looked at the original, it still had mold release in those areas so I kinda went overboard.
By GBDRE760
#4904525
Nice! I've been wanting to try this for a while. Nice results for a first try!
Thanks for the feedback! I plan to keep it up. I just received a tracking number today for some Smooth-On 65D :) I know I am enjoying casting things so needless to say, there may be a surplus of parts around here shortly lol

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