Why not use an intermediate: print a resin master, do your surface prep and stuff, make a silicon mold, then make as many wax casts as you want, add sprues and make a porcelain mold with those, pour your metal...

On the plus side, you might be able to pass those off as busts of General Grant😁 Hey, thanks for taking the time to address our silly ideas.

@PaulsGarage

8 ай бұрын

It's messed up enough you can make it look like anyone if you squint 🤣

That was a worth while experiment. Good to see the beard coming back, that bald face was a scary sight. 😂.

@PaulsGarage

9 ай бұрын

everyone is glad the beard is coming back lol i've been dragging my feet on recording hoping it grows back faster haha

Interesting result actually - the head with less detail has that "weathered by a century of acid rain" look!

@PaulsGarage

9 ай бұрын

it does look like a stone sculpture left in the elements for a thousand years doesn't it? Not exact what I was going for but it's kinda neat lol

Dude those hairs on the Kerbal are craaazy

@PaulsGarage

9 ай бұрын

yeah i couldn't believe those turned out so well. they are so small i couldn't get the camera to focus zoomed in far enough to see the whole head, the depth of field was way to shallow. it's insane what kind of detail you can get with printers these days

Equipment used: *Use Coupon Code "PaulsGarage" for Elegoo on Amazon (if not already on sale) Elegoo Mars 4 Max 3D Printer (US): amzn.to/3Ykr7Zp Wash and Cure Station (US): amzn.to/3OamNax 8K Resin (US): amzn.to/48ecXgZ *other country links in description* The 3D scanner used here (sale right now): shrsl.com/47ito Want me to personally teach you how to use your 3D printer to learn sand casting? Click here: paulsmakeracademy.mykajabi.com/joinus

Maybe adding peroxide to the resin can enhance its burning capabilities later. Of course, this should be done cautiously to avoid altering its photosensitivity. Although I don't possess a resin printer to personally test this idea, I suggest someone interested in experimenting with it. Increasing the amount of oxygen can potentially improve the efficiency of burning.

jeb's hair looks pretty good, those are some dialed in print settings

@PaulsGarage

8 ай бұрын

Yeah I was amazed by the hair. A few tests with the cones of calibration and the amerilabs town really pay off!

really good analysis, I have seen similar results trying to do lost PLA casting too.

@PaulsGarage

9 ай бұрын

yeah thats why i'm going to stick with polycast for lost FDM and sirayatech cast for lost resin. There are other burnout filaments and resins, but i'm not going to use a "normal' stuff anymore

Hi Paul I know this video is 10days old now but have you ever thought about plating the 3d model. I know you can do it if you paint them with a graphite paint. Love the content. I will try some of this one day hahah.

@PaulsGarage

8 ай бұрын

I've seen that and it looks pretty cool but I'm probably not going to do it.

I watched a few videos about making a silicone mould from a 3D print, then using the mould to cast parts in two part resin. I wondered if wax could be poured into the mould instead, and after taking the hardened wax part out of the mould a small amount of clean-up should produce a part ready for investment moulding, and easier burnout. Maybe. I haven't tried this yet, but I would like to. A benefit of having a silicone mould is the ability to produce many parts cheaply, and easily.

@PaulsGarage

8 ай бұрын

I think Vogman might have tried exactly that a couple years ago. I don't remember exactly but he was using 3d printing either for a pattern or a mold or something and then using it to cast wax parts

Kind of looks like you've made your own personalised monopoly piece :D

@PaulsGarage

8 ай бұрын

The car, the hat, and the melted face guy. Classic monopoly pieces lol

Hey paul, Love the content. An alternate niche I haven't seen explored much by the community at large, is printing molds. I have an FDM printer, and I've been 3d printing molds which I then cast wax into. So a negative of your face is the mold, and the wax figure would retain the detail. The wax can be subjected to burnout same as metal casting. I've been using the wax negatives as forms to pour over into silicone, to make foodsafe chocolate molds. I use PETG, but I've toyed with the idea of using resin because of the detail it could capture. I haven't CAD'ed wax vents into the mods part surfaces yet, though I have toyed with the idea recently.... Would like to hear your take on it.

@PaulsGarage

9 ай бұрын

That sounds like a great idea. I've seen people make silicone molds for wax from printed patterns, but never a printed pattern. I would assume the mold would either require draft (so you can remove wax from a rigid mold) or try to use a flexible resin or filament so you can peel the mold off of the wax without ruining it. Maybe I'll get some flexible resin and give it a shot. I've also seen people use a certain high temp resin to make molds to directly cast metal into, but they used pewter I think. Anything higher temperature would probably ruin the mold

@foldionepapyrus3441

8 ай бұрын

All the following are ideas I'd like to try when I finally get the time to build the foundry I'd like, so don't assume I'm an expert. However I'd suggest if you want to use an FDM printer more directly for this stuff now your best bet is probably that foaming lightweight PLA as a burn out medium. Folks have used regular solid PLA for lost sand casting with reasonable results, and this will have even less plastic gunk left as there is less plastic in the first place. Or perhaps going for those cunning high metal/ceramic content filaments and then doing the post print cook that shrinks the print and leaves you a reasonably pure ceramic/metal result. Both should be reasonably able to take the high casting temperature I'd suggest - though in the ceramics case it probably wants to be well preheated before you pour in the metal. @@PaulsGarage Yeah to cast metal into a resin or silicone its almost certainly low temp white metal, though I have seen 'high temp' tolerance casting silicon and resin abuse as a single use mould for hotter melting metals mentioned. Sounded like it worked well enough to useful in a pinch, but badly enough you are far better off doing the extra step(s) to turn a print into a burnout wax or removable form for in investment or sand.

@PaulsGarage

8 ай бұрын

@@foldionepapyrus3441 even better than the foaming PLA is polycast PVB, it leaves zero residue behind. That's the filament I use to make air vents in this video. I think the guy i talked about used special high temperature resin and the hottest metal he tried to cast into it was a zinc alloy, so still pretty low temp stuff. Za-12 is a great metal that I love for sand casting, but I'm looking to do bronze with this for the most part.

How about trying a clear resin instead of the grey? The ash you are seeing is likely the stuff that makes the resin grey. The clear blue (which I have) should work. I might try it myself.

@PaulsGarage

8 ай бұрын

Interesting idea, I have some clear around here somewhere.

@StellarMalice

8 ай бұрын

We need a follow up on this please.

@MattWellandMiscMarvels

8 ай бұрын

@@StellarMalice i burned some clear blue and there was some small amount of residue, I don't have any clear to test.

Link that burn out resin in the details so I can credit you for my curiosity. Thanks for the video

@PaulsGarage

8 ай бұрын

Here to go! Siraya Tech Cast Purple Resin: amzn.to/43KyB99

going crazy waiting for a bag of optima prestige that has gotten lost in the mail. ...have a bunch of crap sprued up..and now im out of investment twiddling my thumbs. I am a glass artist so I am making signet rings that have a glass murrine tile section inlaid into the front. I just recently switched from 3dmaterials supercast resin to siraya true blue cast..and my first cast with the new resin was insanely good. SO much better than anything I had gotten previously..but that was the last flask before I ran out of investment..

@PaulsGarage

8 ай бұрын

I hope they find it! I haven't tried the blue but that's the next one I'm getting. Someone from sirayatech told me the blue has a higher wax content and burns out better for pieces with more thickness. I want to make big stuff so that's what I'm going to use

Enjoyable post, but what about the scanner link?

@PaulsGarage

7 ай бұрын

It isn't in the description? Hang on I'll get it

@PaulsGarage

7 ай бұрын

Here we go: The 3D scanner used here (sale right now): shrsl.com/47ito

Is the Mars printer bigger than Uranus?

@PaulsGarage

9 ай бұрын

Waaaay bigger 🤣. Elegoo likes the planet name scheme but for whatever reason "Uranus" is conspicuously absent 🤔🤣. Personally I love astronomy but I get it

👍👍❤❤😊😊

What about the gingery lathe

@PaulsGarage

9 ай бұрын

very next video is the ways on the lathe. I'm attaching them in a way that resembles what makercise did, not the way it shows in the book

@blazunlimited

9 ай бұрын

I was beginning to wonder if this resin 3d printer stuff was going to tie right in with the Gingery lathe. Apparently no?

@PaulsGarage

9 ай бұрын

@@blazunlimited it will yeah. I'm printing most of the patterns and generally the big patterns will be FDM printed and sand cast and the smaller patterns will be resin printed and investment cast. It will give me more freedom in the design process and I can make it look cooler. The next casting is the feet though and that will likely be FDM printed (they are big and I'm making one even bigger than Gingerys design)

@blazunlimited

9 ай бұрын

@@PaulsGarage Aha! So there is a method to your madness! I’m all for madness just for madness’ sake, but when there is a purpose behind it - also good.

@PaulsGarage

9 ай бұрын

@@blazunlimited I have plenty of madness to go around myself, gotta find a way to channel it lol. I have a theory that "maker" skills compound exponentially, and sticking with just one will hold you back. I feel very confident in my sand casting ability, so now I'm working on 3D modelling and investment casting. After that will probably be machining (gotta have the lathe built obviously). Combining all the skills I can hopefully make some super cool stuff and I won't be held back by a lack of skills

Dam I had high hopes for this I want to 3d print metal warhammer stuff. Burn out stuff is so expensive.

@PaulsGarage

8 ай бұрын

I bet the proper burnout resin and proper investment plaster is still cheaper than GW prices

@StellarMalice

8 ай бұрын

@PaulsGarage It's funny I never bought any GW stuff got bullied into playing 40k but iv got some projects a 3d printer would be perfect for. Unlucky for me I need to learn blender to a good standed in 3d modeling first for the chess set idea I have. Then it's time management which I'm terrible at.

@PaulsGarage

8 ай бұрын

@StellarMalice I'm leaning blender right now, it's daunting at first but it becomes pretty intuitive. I've never bought any GW stuff either but I am trying to get into OnePageRules which is all printed minis and fewer crazy rules. It might be fun

@StellarMalice

8 ай бұрын

@@PaulsGarage I'll give it a look cheers.

Can you use normal resin for castings? Yes, but as this video shows, don't expect good results.

@PaulsGarage

9 ай бұрын

Exactly!

Could you also show some videos of actual printing , casting, etc. instead of just speaking about them. Thanks

@PaulsGarage

9 ай бұрын

Sounds like a good idea 👍