r/MetalCasting

casting a long thin shape.

I want to cast a thin branch in pewter (because it was cheap, but open to suggestions). I was considering buying casting sand, as there is a 50 x 25 cm mould that would be a good size, but I thought the pewter would probably get stuck in the top, even with vents.

I thought about making smaller sections and welding them together with a soldering machine, in which case I would like advice of the maximum size i could make each one, (the twig is around 1cm^2)

or doing an open-air mould, of only one half.

Thank you for reading,

Grateful beginner

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u/mis_demean0r — 11 hours ago
▲ 459 r/MetalCasting+3 crossposts

I Replicated Some Replicas of the Stargate SG-1 Replicators in .999 Silver

...Still haven't figured out a way to get them to replicate on their own!

Each piece is 2.2ozt of pure silver. Details came through fairly well using petrobond sand casting.

u/Always_Upside_Down — 1 day ago
▲ 3 r/MetalCasting+2 crossposts

Sprue setup

Im casting resin 3d prints for first time and im wondering about propper sprue placement on this ring, is there something that should be changed about sprues?

Im using Liqcreate Wax castable resin.

u/Taaacooo — 18 hours ago
▲ 11 r/MetalCasting+1 crossposts

How would I go about casting this?

I want to get into casting silver rings. It is carved out of wax.

u/Few-Antelope543 — 1 day ago

Can I sand cast this ring?

Never sand casted before but want to start. Is the detail too fine for sand casting? And if not, how would I press it in and remove it without messing up the 0606 and 1.13.24? I know lost wax/resin could be better for this but I dont want to buy all that equipment right now.

u/Just-League-9847 — 2 days ago
▲ 4 r/MetalCasting+1 crossposts

Looking for someone that can make copper wrenches

I have a bunch of copper coins that I would like to have melted and turned into wrenches as gifts. Hoping to find someone that can assist. I’m located in Kansas if that helps. TIA

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u/Fideli91 — 2 days ago

Casted a kriegs bust today

Casted a bronze bust out of some scrap bearing bronze. Used lost resin casting to do it. It's not cleaned up fully but I kinda like it the way it is so might not fully clean it up

u/Sublime-Silence — 2 days ago

Can I bronze cast without having to buy a boat load of equipment?

I am not an experienced caster but thought I would try to cast a jamb cleat similar to the photo out of bronze. I have access to a small furnace that will melt the raw bronze. I don't think I can use the sand casting method as the original has barbs that I won't be able to pull out of the sand without destroying the mold. I have successfully made a silicone mold of the original. I was thinking of using the lost wax method.

  1. Can I use any wax like let's say from candles from the dollar store?

  2. When I make a plaster mold what kind of plaster should I use. I know not to use plaster of paris as it will probably explode but I don't want to have to buy 50 lbs of something. I will only need about 75 cubic inches or 40 fl oz. of plaster. Is there a way to modify plaster of Paris or a different product that can be recommended?

  3. When I melt the wax out, can I do that in my oven? I do not have a kiln and have no desire to purchase one.

Thanks everyone

u/amcnewman — 4 days ago
▲ 39 r/MetalCasting+1 crossposts

Started messing with 3d reliefs in cad

I recently started learning how to create 3d reliefs in cad with the goal of eventually making some plaques for all my dogs I've buried over the years on my parents' property.

This is my current, living, black lab named Dio I used for as a test. Yeah, the finish is rough, but it matches the low quality 3d print without post processing i used to create this. I was in a rush, so instead of doing 0.08mm layers like i should have, I went with 0.2mm layers.

For being such a rough print, I still think it turned out pretty good for my first real 3d relief casting that wasn't created by some janky free AI converter online. I'd like to eventually print one of Dio small enough to be worn as a pendant cast in silver, though I think I'll need to go to resin printing for that level of detail at that size.

Anyway, I just thought I'd share and see what y'all think of it, and if anyone has any tips, I'm totally open to them to be able to make these even better.

u/Then_Marionberry_259 — 3 days ago
▲ 51 r/MetalCasting+2 crossposts

Did a wee bit of Silver over the weekend....

So through trolling eBay I came across a "reasonably" priced lot of scrap silver jewelry. So this became an intersection of two of my questionably beneficial, and definitely expensive hobbies. Those being metalcasting and stacking silver...
It said it was "Sterling" but I already knew that wasn't true, and sure enough every piece I tested came out at .800 or so purity (common silver jewelry level). But I still like the results. Total weight was just over 22oz.

  • The Yes/No coin was a sand casting
  • The coins across the top were two sided graphite molds from Ancient Foundry
  • The cross was a graphite mold I found on Amazon.
u/NerdyOldMan — 4 days ago
▲ 145 r/MetalCasting+2 crossposts

My First Time Casting Silicon Bronze

I finally had an opportunity to purchase some premium silicon bronze from a company and oh my god what a difference in quality. I did hollow casting only for the 2nd time ever with this, and the detail that came out was astonishing. I can only imagine what I'd get when I practice hollow casting more and get better at it (and also a better vacuum chamber).

Anyways, I added LED lights to most of them which is why I made them hollow and I like how they turned out, especially the skeletal native Americans. Most of the unfilled areas were intentional, but I did have a few areas not fill in which was weird because the high detail and thin areas filled out perfectly. I think it was because of trapped gases/air?

I was able to retain a rainbow patina by heat treating the surface prior to buffing. I'm amazed at how well the color stayed because every other bronze I've cast oxidized too fast to retain the color for very long and washed out pretty quickly. Also, adding protectaclear drastically reduces the color retention (didn't add on the skeletons vs. the others I did). The 2 outer skeletons ended up solid because I forgot to drill holes to vent the plaster, the middle one is hollow.

Lost PLA investment casting method

u/The_Metallurgy — 4 days ago
▲ 48 r/MetalCasting+1 crossposts

Some of my First .999 silver Castings.

Has been an enjoyable learning curve making these items from pure silver. I carve the negatives for my molds out of wood mostly. Would love some feedback negative or positive as I am still trying to improve!

u/Always_Upside_Down — 4 days ago

What’s a good lost PLA investment recipe?

I’m trying to do some lost PLA casting without super expensive investment, but I can’t seem to get the sand-plaster-water ratio right. Any good tips or recipes?

Much appreciated!

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u/SnooLemons694 — 3 days ago
▲ 10 r/MetalCasting+1 crossposts

I need to cast new cable end piece, what do i need?

Starting from cratch, like always when learning new stuff

I have this cable for my old car, cable snapped and i need to replace it. I tried to heat it to remove old wire but it just melted away completely.

I still have other end for modeling new one. What supplies i need to make new one?

Inb4 why you just buy new part: there is no new replacement cables available

u/Then_Marionberry_259 — 4 days ago

Ramping in investment casting.

My father has finally retired and is teaching me lost wax casting. His method doesn't seem to use temperature ramping, but I see many people emphasizing its importance online.

His method is to add the investment slurry to the cask, then let it cure until it's hard. Next, he pops it into a cold electric kiln and cranks it to high. He waits until no more smoke is leaving the kiln, at which point the cask is popped into the spincaster. The whole process takes 3-4 hours. His results are always great.

This seems totally at odds with modern descriptions of casting. I see some schedules taking twelve or more hours. I would love if someone was able to provide some context.

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u/leaphornsfw — 5 days ago
▲ 9 r/MetalCasting+1 crossposts

Flask size and hole diameter?

Hey guys, I’m finally getting the things i need to start lost wax casting. I have 2 questions (so far):

Does my flask need more room in the kiln? I also need to raise the flask slightly to let wax flow out, right?

Also for the vacuum part of my set up I’m planning to cut a steel circle to replace the clear one on my vacuum chamber. How much larger should the hole be than the flask to allow the metal to expand and still fit? For example for my 4 inch flask, should the hole be 4.1 inches in diameter? Or more?

Thanks!

u/NelsonQuant667 — 6 days ago

Help needed

Hi Im a newbie into metal casting. And AI recommended this model to me for a better flow. These are my circumstances:

-I dont have that much experience doing this and Im still learning to be able to cast stuff at home
-I dont have any expensive equipment only at home stuff.

Im trying to cast this in beeswax or paraffin+glue sticks first in silicone then casting them in metal after I mold them in plaster. Lost wax method I believe is what its called. But again I dont have that much experience and any instructions from start to finish would be of great help. Ive tried these before but the metal casting always came out unfinished when I try casting it straight to a 1-part silicone mold. Im using Zamak 3 btw.

If yall are familiar this is a fusion wheel from the metal fight beyblade series. Im a hobbyist that would like to be able to produce these at home. Thanks!

u/Conscious-Weird-1885 — 5 days ago