@@GaryMcKinnonUFO I'd wager a clear coat would probably prevent that in most cases that the tolerance didn't do the trick. It's not like you're likely to reuse the Lego bricks for play afterwards. I hadn't thought about using them and there's a shop nearby that sells used bricks by the pound.
Rather than cutting the mold wall out of foam core (which I did once), I like to print the outer wall for my molds. Minimizes the amount of silicone I use. Making the wall is particularly easy if you already have the model in CAD software and can just make an outline with a half inch offset from the original part and extrude it up.
I took a 2D vector image, greyscaled it for the heights I wanted, then too the flat 2D image and used it as a heightmap to extrude a model to print. Printed the model, then used it to create molds for soaps :) Edit: By the way, for silicone I just used standard hardware store 100% silicone. You make a high concentration solution of dish soap and water, empty the entire tube into the solution, and then knead it gently by hand. It will stiffen up in the solution and then you can press it around your object to be cast. Very handy when you don't live near a place that carries casting supplies or don't want to wait for shipping.
Nice job Alec. Looking forward to more of your mold making videos! A quick note, if you want a strong Platinum Silicone with lower viscosity for easier mixing and bubble removal, the TC-5041 is one of our favorite for general mold making. Keep up the good work!
Note: clear coats and spray paints were recommended for use as a mold release. This will often not work with platinum cure silicone. It will inhibit curing and ruin the mold and the part you are trying to make a mold of.
I used hot glue for my 3d print and as soon as it got covered with silicone the thing lifted up and started floating I didn’t go cheap with the hot glue either would superglue be a better option?
What I'd the temperature rating for the mold. I cast at about 180 degrees with a platinum. Get about 1500 pieces out of one mold. Do you heat the mold in an oven first ? We do and then it goes into a deep freeze at 10 f for 15 minutes. Try this and get great results
@@MatterHackers Do you know if you can make silicone objects for heat transfer onto apparel? Not quite sure if there's something added to the silicone that allows for adhesion when heated or if silicone generally behaves that way.
I have a business where I do custom concrete and resin pieces. I have a request for an order to put an old photograph in resin on thier piece. This is way out of my league. I have been watching some of your videos and searching like a mad woman on if this is possible. Can you direct me on how I can accomplish this? It will be an heirloom so, quality of detail is of the utmost importance. I appreciate your time and learn a lot from your videos! Cheers!
Do the Smooth-On tin or platinum silicones produce any exothermic reaction when curing that may deform an original print (say it is printed in PLA or PETG) ? I know some plasters will heat up during the curing process. I'm concerned it will soften/deform an original print.
We wrote an article about it that you can check out here: www.matterhackers.com/articles/using-3d-printing-for-metal-casting-part-1 We are hoping to have a video about this shortly - stay tuned!
A note on food safety, it should be both food safe and platinum cured. From what I can tell, food safe doesn't automatically guarantee that it's going to be platinum cured. For things that just come into contact with food or the outside of the body that might be overkill, but it's worth it.
Did you prep your 3d print before molding? If so, what did you do? And how did your 3d print look before the prep. And how was the cast made from the mold?
What do you do to the 3-d printed object to avoid cure inhibition? My silicone casts are still uncured where they are in contact with the 3-d PLA print.. using smooth-on Moldstar 30 and Dragonskin 20, both not curing on the contact surfaces. Please help. Thanks!. -Dave S.
Hello, I am trying to make a mold from my resin printed object. Which silicones/mold release/sealants should I use to get a nice silicone of my resin printed object? Thank you!
Good afternoon, Thank you for the video. Instead of using the method of pouring from a height, would you recommend using a funnel to eliminate air pockets?
Excellent and informative, thanks a lot! Have you tried pouring recycled/melted PETG or PET into a mold? I've read that silicone molds can withstand high temp materials like pewter, so I suspect that's not an issue, but curious as that's my plan.
I like that idea a lot. From what I know it can go up to around 220c before you start to have problems. There are high temp silicone blends that can go closer to 300c if i'm not mistaken.
Hi! Is it a bad idea to make the irrigator's part out of a usual (automotive or usual sealant) silicone? It will be contacting with water probably. The water will be filtered.
Can u do this with a 3d printed cookie cutters? Like say u printed a Mario head in 3d printed making it for make cookies but I want to use it for resin keychains instead?
Aren't resin casting thermosets? They are definitely not better than 3dprintable filaments( in terms of eco friendliness and bio degradability) like pla... Please correct me if I am wrong..
I have a 3d print out of resin and my 3d printer said platinum silicone won't cure on the resin, is this true? If so how can I make my resin print useable?
What you completly missed is cost: resins are relatively to 3d filament very expensive. I estimate your logo cast with smoothcast is about 3-5$ for resin. If you buy the gallons ist 2-4 $. This is about ten times the cost of 3d printing, not counting the even more expensive mold silicone. I think this very point is the reason why FDM printing is so accessable and resin casting isn't . I have made molds and wax castings from 3d parts for metal casting and just spend the money to be able to have a high tempreture mold because there is no other way to get wax "prints" but for simple shapes like this.... imho way to much effort and money to have some resin parts.
I've used the BJB casting resins and silicone molds. It's actually very cheap if you're making many parts. Plus you can make the parts faster than on a 3d printer, casting doesn't use electricity, and the casting resins are often times stronger than a 3d print.
It depends highly on the quantity you need to make and also the finished quality needed. If your time is worth anything, then after about 6-12 parts making a mold is a time and money saver. If you are only making a few parts, then continue 3D printing. This is typically the key item missed when comparing the techniques.
Hi ! BY chance do you create custom molds? I would be able to send you the actual product and pay for the services of course. I will appreciate your response
Just something ive recently discovered. If I don't let the 3d print cure for at least 2 or 3 days in natural light it will cause cure inhibition which is where the rubber will not set and stays sticky where it touches the 3d print.
Great video! Regarding the smooth cast 300q that you pour into the cast: is that stuff food safe when it cures or would I need to coat the new part with a food-safe epoxy?
I’d love to give this a go but all I ever hear about resins is how toxic they are and how they shouldn’t be used in a home setting. Did you mention safety?
Not all resins are harmful. Epoxy resin is less dangerous than many household cleaners. Urethane (what he used in the video) is likely just a little worse than most household cleaners while acrylic resin is pretty nasty stuff yet it's what fake fingernails are made of and when it's sanded it's harmful dust that many people do in home.
God tried to turn us from our sins through many rules but it didn't help so he became a man lived a sinless life like a 'game programmer' enter his own powerful avatar to overcome all the bugs and to save the other avatars in the simulation(or exam for good place) by sacrificing his own avatar to help the other avatars to make through the exam, anyone can posses that power when he/she have faith in jesus HE'S coming back
probably one of the worst pours i've ever seen. the way you let the material fold onto itself over and over just folding air bubbles into the mix was face palm inducing . whatever!
Jan. 8, 2019---For my mold boxes, I use Lego's which I can make as big or tall as needed. And no problem tearing them apart and reusing them.
I've seen Lego ones leak, not badly though.
@@GaryMcKinnonUFO I'd wager a clear coat would probably prevent that in most cases that the tolerance didn't do the trick. It's not like you're likely to reuse the Lego bricks for play afterwards. I hadn't thought about using them and there's a shop nearby that sells used bricks by the pound.
@@SmallSpoonBrigade Good points thanks Chris.
Rather than cutting the mold wall out of foam core (which I did once), I like to print the outer wall for my molds. Minimizes the amount of silicone I use. Making the wall is particularly easy if you already have the model in CAD software and can just make an outline with a half inch offset from the original part and extrude it up.
That's a good idea. Then, you could probably hold everything together with screws, making your mold wall reusable.
Yep, this is how I make my molds. Works really well for my pen blank molds.
Most CAD softwares have a mold function for your part, which allows you to print molds, pretty cool
that is what i was thinking. do you really need that cardboards? you can print a mold than pour silicone on it. Is there anything i am missing?
Thank you for this, very helpful
Excellent video …. It was EXACTLY the information I was looking for !
A million THANK YOU’S !!
I’m subscribed !!
I took a 2D vector image, greyscaled it for the heights I wanted, then too the flat 2D image and used it as a heightmap to extrude a model to print. Printed the model, then used it to create molds for soaps :)
Edit: By the way, for silicone I just used standard hardware store 100% silicone. You make a high concentration solution of dish soap and water, empty the entire tube into the solution, and then knead it gently by hand. It will stiffen up in the solution and then you can press it around your object to be cast. Very handy when you don't live near a place that carries casting supplies or don't want to wait for shipping.
That's awesome! Thanks for sharing!
8m 11s video on silicone molding, shows 3 seconds of finished cast 🤦🏻♂️
Amazing video!! Thank you!! Going to try this!
Disposable “Tupperware” (or it’s generic equivalents) works nicely as a box too... 😀
Dark Winter i like to use solo cups flip them over and cut the bottom off.
So this is more about making something from a mold. It would be neat to see how to create a 3D printed silicone mold.
Awesome video
That was brilliant! Thank you so much for sharing your awesome tutorial. For a complete beginner like myself, this made perfect sense. Thank you!! 👍👍
Nice job Alec. Looking forward to more of your mold making videos! A quick note, if you want a strong Platinum Silicone with lower viscosity for easier mixing and bubble removal, the TC-5041 is one of our favorite for general mold making. Keep up the good work!
Thanks for the advice guys - we will definitely have to check that out!
BJBEnterprises I can’t find it available online
@@ArtistTillDeath The silicone Alec used in this video: bjbenterprises.com/index.php/tc-5060-a-b/
Another silicone we like to use: bjbenterprises.com/index.php/tc-5041-a-b/
Note: clear coats and spray paints were recommended for use as a mold release. This will often not work with platinum cure silicone. It will inhibit curing and ruin the mold and the part you are trying to make a mold of.
Thankyou
great video and explanation, cant wait to make a mold!
Great video - look forward for future ones on this topic
Thank you!
Thanks for this vid! This is something I would like to start doing.
Nice video. Thanks for making it.
Thank you for the detailed video. I look forward to watching your other videos.
Detailed video, nice.
I used hot glue for my 3d print and as soon as it got covered with silicone the thing lifted up and started floating I didn’t go cheap with the hot glue either would superglue be a better option?
Any suggestions on how to keep the silicone pour from absorbing into the FDM print? I used PLA, any settings that are best?
What I'd the temperature rating for the mold. I cast at about 180 degrees with a platinum. Get about 1500 pieces out of one mold. Do you heat the mold in an oven first ? We do and then it goes into a deep freeze at 10 f for 15 minutes. Try this and get great results
can you do a tutorial on reusable molds for concrete parts?
Awesome suggestion - we will add it to the list for this series! Thanks!
@@MatterHackers Do you know if you can make silicone objects for heat transfer onto apparel? Not quite sure if there's something added to the silicone that allows for adhesion when heated or if silicone generally behaves that way.
I have a business where I do custom concrete and resin pieces. I have a request for an order to put an old photograph in resin on thier piece. This is way out of my league. I have been watching some of your videos and searching like a mad woman on if this is possible. Can you direct me on how I can accomplish this? It will be an heirloom so, quality of detail is of the utmost importance. I appreciate your time and learn a lot from your videos!
Cheers!
Do the Smooth-On tin or platinum silicones produce any exothermic reaction when curing that may deform an original print (say it is printed in PLA or PETG) ? I know some plasters will heat up during the curing process. I'm concerned it will soften/deform an original print.
Can you do a video about make a metal part cast using a 3d printed part as master?
We wrote an article about it that you can check out here: www.matterhackers.com/articles/using-3d-printing-for-metal-casting-part-1
We are hoping to have a video about this shortly - stay tuned!
Can you help me. I need a watch band for a suunto x10 watch. Would you know how to do that?
why the music... I just want to listen to you and your hard work putting this together?
A note on food safety, it should be both food safe and platinum cured. From what I can tell, food safe doesn't automatically guarantee that it's going to be platinum cured. For things that just come into contact with food or the outside of the body that might be overkill, but it's worth it.
I'm wondering about where to read/see more about the types of resins that can be used with silicon molds. Do you have more links about that?
Did you prep your 3d print before molding? If so, what did you do? And how did your 3d print look before the prep. And how was the cast made from the mold?
My question is if you 3D resin print the item you want to make a mold of is it best sand it as smooth as you can?
What do you do to the 3-d printed object to avoid cure inhibition? My silicone casts are still uncured where they are in contact with the 3-d PLA print.. using smooth-on Moldstar 30 and Dragonskin 20, both not curing on the contact surfaces. Please help. Thanks!. -Dave S.
how about fumes, COV and odor ? how is it ?
do we need ventilation during pouring or curing ?
can we mold a silicone part in a 3d print mold ?
Thanks!
How many times can you use a mold?
fill with wax for lost wax casting nice video
Can you do a video on reusable two part mold to inject wax into for lost wax casting?
This one should ork for you: czcams.com/video/GLGWjZ13srA/video.html
Food safe silicone?
Hello, I am trying to make a mold from my resin printed object. Which silicones/mold release/sealants should I use to get a nice silicone of my resin printed object? Thank you!
Any recommendations for a method that would better work on a model with overhangs? I made a sculpture and it's tall with a lot of overhangs, cheers.
Good afternoon,
Thank you for the video.
Instead of using the method of pouring from a height, would you recommend using a funnel to eliminate air pockets?
to minimize air bubble, why pour it higher? you introduce bubble at that height.
Is there no way to mold interlocking parts without cutting away a piece or filling the hole?
What silicone can I use that is able to go into the oven? The wife makes air fresheners and they are baked about 300* or so
then make a rotocast mold to save on casting resin
Excellent and informative, thanks a lot! Have you tried pouring recycled/melted PETG or PET into a mold? I've read that silicone molds can withstand high temp materials like pewter, so I suspect that's not an issue, but curious as that's my plan.
I like that idea a lot. From what I know it can go up to around 220c before you start to have problems. There are high temp silicone blends that can go closer to 300c if i'm not mistaken.
Can you use flexible resin to print out molds?
Hi! Is it a bad idea to make the irrigator's part out of a usual (automotive or usual sealant) silicone? It will be contacting with water probably. The water will be filtered.
Do you do commissions? And Can you turn a drawing Into mold?
Can u do this with a 3d printed cookie cutters? Like say u printed a Mario head in 3d printed making it for make cookies but I want to use it for resin keychains instead?
Where do I start for beginners who have a product they have on the market?
Cool
can you print 3d print the mold with TPU filament and mold things from that?
Se pueden crear moldes directos en impresora 3d?
Do you sell custom soap moulds? Around a 6-8 bar mould
Aren't resin casting thermosets? They are definitely not better than 3dprintable filaments( in terms of eco friendliness and bio degradability) like pla...
Please correct me if I am wrong..
Great vid - have you ever worked with vacuum formed moulds?
I have a 3d print out of resin and my 3d printer said platinum silicone won't cure on the resin, is this true? If so how can I make my resin print useable?
how do you get the bottom flat and smooth?
Ok. Fullscreen mode in less than 1 minute. Very interesting.
can silicon mold be use on the same silicon to form the model?
Yes, but you need to use s good release agent made for silicone to silicone.
Where can i buy this silicone mix and is it good for concrete ?
... How can you make a mold of something challenging like a squid.. can a squid or octopus be done with one mold.
What you completly missed is cost: resins are relatively to 3d filament very expensive. I estimate your logo cast with smoothcast is about 3-5$ for resin. If you buy the gallons ist 2-4 $. This is about ten times the cost of 3d printing, not counting the even more expensive mold silicone. I think this very point is the reason why FDM printing is so accessable and resin casting isn't .
I have made molds and wax castings from 3d parts for metal casting and just spend the money to be able to have a high tempreture mold because there is no other way to get wax "prints" but for simple shapes like this.... imho way to much effort and money to have some resin parts.
I've used the BJB casting resins and silicone molds. It's actually very cheap if you're making many parts. Plus you can make the parts faster than on a 3d printer, casting doesn't use electricity, and the casting resins are often times stronger than a 3d print.
It depends highly on the quantity you need to make and also the finished quality needed. If your time is worth anything, then after about 6-12 parts making a mold is a time and money saver. If you are only making a few parts, then continue 3D printing. This is typically the key item missed when comparing the techniques.
Does anyone know if there is a way to dye the silicone a different color? I want mine to be gray
My silicone is white so I added mica powder and it looked beautiful
How can I make a mold from a photo???
Hi ! BY chance do you create custom molds? I would be able to send you
the actual product and pay for the services of course. I will appreciate
your response
Just something ive recently discovered. If I don't let the 3d print cure for at least 2 or 3 days in natural light it will cause cure inhibition which is where the rubber will not set and stays sticky where it touches the 3d print.
is that boolean gemini hanging on the wall behind you
Wait so where was the 3D Printing here? I think I missed something
Great video! Regarding the smooth cast 300q that you pour into the cast: is that stuff food safe when it cures or would I need to coat the new part with a food-safe epoxy?
Last i checked tc stood for tin cure... Not platinum.
No, TC- stands for Two Component. It's a rather old nomenclature system BJB has used. We also have SC- which is Single Component.
I’d love to give this a go but all I ever hear about resins is how toxic they are and how they shouldn’t be used in a home setting. Did you mention safety?
Not all resins are harmful. Epoxy resin is less dangerous than many household cleaners. Urethane (what he used in the video) is likely just a little worse than most household cleaners while acrylic resin is pretty nasty stuff yet it's what fake fingernails are made of and when it's sanded it's harmful dust that many people do in home.
Nice 3d printing nerd reference there
would you make molds for me if i pay ?
can you not just 3d print the actual mold and skip a step?
Lime sus
3D printing?
God tried to turn us from our sins through many rules but it didn't help so he became a man lived a sinless life like a 'game programmer' enter his own powerful avatar to overcome all the bugs and to save the other avatars in the simulation(or exam for good place) by sacrificing his own avatar to help the other avatars to make through the exam, anyone can posses that power when he/she have faith in jesus
HE'S coming back
probably one of the worst pours i've ever seen. the way you let the material fold onto itself over and over just folding air bubbles into the mix was face palm inducing . whatever!
That's one filthy neckbeard.
that stare.... its so..... piercing... urgh..
blablablabla
show us not talk
I saw no 3d printing may want to reword your title
He 3d printed the logo he used for the mold
too much talker..