My Little Pony: Action figure (fully articulated) Princess Luna 3D printed

The alternative to a compressor is using canned compressed air made for airbrushes. It is cheaper than buying a compressor, at least for a few cans...


-MJ
 
Well i found a compressor i can get for about 90 euro's that has pretty much everything i need. Regulator, airtank, max of 8 bar pressure. I'll be getting that at the end of the week along with my iwata eclipse.

Also the last vat of silicone has arrived so i have everything i need to finish the casting part of the project. 4 new molds and one remade mold for the feet is whats left to make. because my current mold for the feet is not salvageable. Even with my new rotocast method. I'm going to have to get creative with those but everything should work out nicely.

I'm really motivated now that i'm getting so close to the end :) and so far i've learned so much. And even though i hit a pretty low point in the project a little while ago i'm glad i managed to push through it. So far thank you to everyone who has supported me and given me helpfull advice, it means a lot. Expect a pretty big update soon.
 
After some minor setbacks this past week (Mostly IRL Troubles) The last molds are curing right now. so finally i can close this chapter of the project. went through almost exactly 30lbs of silicone for all 10 molds and 1 failed mold. the following week should finally see the first completed figure :). Can't wait!
 
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You know you can chop up the used silicone from a failed mold into a 'mulch' and use it as filler in new molds....

Glad things are working out.
 
Ready for a day of Casting :)

G4bqSh8.jpg
 
it seems i've run into a slight snag. when i cast some of the larger parts. and i mix a relatively large amount of resin together. it tends to start hardening before the 3 minute pot life is over. does anyone have any idea why this is happening?
 
You're mixing too much. Urethanes cure through an exothermic reaction (heat) the larger the amount, the greater the heat - therefore the faster a gel or cure occurs. Try mixing small batches to fill one or two molds at a time.
 
Wow, ok. What's the gel time? Maybe spend less time mixing? I'm not saying mix poorly, just learn to mix more efficiently.
 
the msds says 3 minute pot life. and 10 minute demold. its smoothcast 300 however it doesn't always happen. and i mix for about 5 to 10 seconds. but it tends to only happen with molds higher than 100 ml. but sometimes even those are fine. it's really inconsistent
 
Hate to say it, but that sounds like a bad batch. Are you measuring by weight or by volume? I know it says by volume, but sometimes the MSDS will include a weight measure as well. I tend to trust measures by weight over volume, but the kind of inconsistencies you're describing sound way too erratic for simple mistakes in measuring. Is it really hot inside where you are pouring? I wish I could come over and help. :)
 
*facepalm* I am an idiot. I've been mixing 1A:1B by weight when i should have been mixing 10A:9B by weight or 1A:1B by volume. i should have read the technical bulletin a little more closely.
 
I thought so! Good to know you have a solution, hope this helps!

And don't worry, I've mixed 1 to 1 with chemicals that were supposed to be 1 to 2. Try that mistake! :)
 
I love this whole thread. The design is beautiful, the ingenuity is amazing, the story arch is so relatable, and it's even got a happy ending, and it's not even over yet.
 
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