The beginner's guide to mold making and casting

In this video, we'll show you how to create molds and casts of your 3D-printed objects. This opens a whole new range of possibilities, such as small-scale production of custom-made products - like candles or bars of soap. It's not difficult at all and you need only a few basic things.

The sample model was printed on the Original Prusa SL1 from white tough resin, the tool for making a mold was printed on the Original Prusa i3 MK3S.

[KKCNM]

Pro tip: Use sulfur-free clay. Clay that has sulfur in it will inhibit the silicone from curing properly. Tip 2: You will want to seal the SLA print. That kind of resin does not react well with platinum cure next to silicon. Prints can be sealed using a few coats of a good clear coat. For example, Krylon crystal clear.

[KikkawaRyu]

A big flex there, using an old printer bed for the base to do it all on aha

[camilapascual]

Wow this is my current dream right here. Making molds for candle and soap making !

[RTW]

This video was perfect! I did a couple molds like 10 years ago and this video might give me the nudge to make one again

[JulianMakes]

I use my mk3 for making moulds and patterns all the time, it is such an awesome machine.

[Mr.C-Mister]

DUDE CAST METAL BLADES TO A PERFECT SIZE IN CLAY WTF! THIS IS AMAZING!!!

[interficiam]

I just print my molds directly: take 3D-object, subtract it from a cube and split that in half. Then print that. The molten wax isn't hot enough to ment the mold, so it works fine to make candles.

[vincentpernicano]

You are a brilliant marketer and business man Mr. Prusa! My hat is off to you for realizing the potential market for this use case of SLA printers!

[Shadesatx]

Thank you so much for making a concise video with subtitles. This was just what I needed!

[DwarMeji]

I've viewed many videos like this one using a 3d printed model to cast in a silicone rubber mold for use to cast epoxy, urethane, wax, pewter, etc. Though I've yet to see a video that shows 3d printing of the mold itself from flexible filament to use for casting. This could be a time saving technique.

[constantinosschinas]

prusa is a great comedian. first he designs a 35.000 hour, utterly expensive IKEA hack booth, now he is actually printing what you can make in 1 minute from carton. way to go man.

[F_CPB]

Thanks for making this video! I was planning of cold casting my 3D printed beyblades. It's really helpful for me

[tranhdinhda_bino]

Thanks a lot for your video. Now i know the difference between " mould" and " cast".

[CoolidgeTheOwl]

Exactly what I was looking for, thank you!!

[ivanperez]

Awesome!! Should do concrete pots too from a 3d printed mold

[MauryXman]

SIETE SEMPLICEMENTE FANTASTICI, GRAZIE GRAZIE GRAZIE Yuo are too much fantastic, thanks thanks thanks

[homeautomationlab]

I see the cult of Josef Prusa is progressing nicely, hail to the chief.
I can't wait to sit in my bathtub tonight surrounded by little Josef's candles and wash my self with Josef soap.

[arunpanchal]

A tutorial on metal casting please from sl1

[juan]

I am reading through the comments and my question is only could I do a silicone mold instead of using S LA or resin. Should I use the actual negative as a traditional 3-D print with FDM Printing then put it in creating a mold box and then pouring the resin or would that be too hot it and it might melt the actual PLA o ETG

[somedude]

So now there is a Prusa resin printer? Wow