Making a Petrobond Sand Casting Mold

[@mastheadmike]

I haven’t wanted to see the finished casting more than ever and I’ve seen soooo many here on YT. Stellar and methodical work.

[@JoseSilveira-newhandleforYT]

Agree.

[@theselectiveluddite]

@@earthknight60 Yep :) kzbin.info/www/bejne/haW6h3RtlJ6Fn80

[@LuvLikeTruck]

In this episode, Chris makes a chocolate cake

[@2212db]

I love these shorts, but I'm keen to see news, updates and progress on the Antikythera project

[@matthewsykes4814]

Was away at home, no internet. Had a wonderful time, proper home cooked food, family around....awesome. Awesome job Chris, I learn more every time you post. Still haven't got a lathe but I have a lot of do's and don'ts to guide me Your still the best

[@stevejohnson1685]

Ah, Delrin - after walnut, my favorite material to machine. Lovely work.

[@1959Berre]

How the delsin squirts the shavings endlesly is a joy to the eye.

[@assassinlexx1993]

So much detail preparation leading up to the pour. To make one beautiful part.

[@barry99705]

Gave me crappy VHS flashbacks for a minute there.

[@azlandpilotcar4450]

The most carefully done sand mold I've seen.

[@jacekgospodarczyk4384]

As usual perfectly done.

[@a0cdhd]

Have you been watching Old Foundryman Mr. B? I spent a couple of days with him in Victoria a couple of years back. Clever bugger. Taught me a lot.

[@ClickspringClips]

Yes I have learned much from Martin, top bloke - Cheers :) [ Olfoundryman channel: kzbin.info/door/90RoN_IjSRF18jAG0HIA6g ]

[@serhancinar5218]

I like the pouring cup

[@Platanov]

That petrobond stuff looks delicious when he's scooping into it with the little spatula. :p

[@SytheZN]

The scale (or lack thereof) was quite surprising to me. Coming off the lathe I expected the part to be ~250mm in diameter, but once it was in your hand I could see it was no more than 80mm wide. Really nice work! Keep it up.

[@jondavidmcnabb]

How are you always so precise? Your skills are incredible.

[@markneedham8726]

Yes. he's the sort of bloke that when he's picking his nose, you have to watch. :)) He is good, Hey!

[@matthasaname]

What would it take to be just an errand boy in your shop!? I want to be around this kind of precision and craftsmanship.

[@pixelkatten]

This clip reminded me of how awed I was the first time I saw you cast these parts, and I got a little annoyed when I didn't get to see that again! I'm going to have to re-watch the original!

[@matthewhall435]

Chris ! I love your videos ! I have only just found your clips channel though after years sadly was waiting months for videos to come out and never knew !

[@Davinci-jj5kw]

We can learn more in a 3 min video that a whole collage class... Can you do some videos talking about why you chose the gating you did? I can only guess at why.

[@jeffarmstrong1308]

The complete video is here kzbin.info/www/bejne/haW6h3RtlJ6Fn80

[@Pv2qso]

keep learning from you ! thank you !

[@DCJones06]

Any hints on where you get petrobond in small quantities (for backyard casting) here in Australia? Always love the videos.... thanks.

[@dtnicholls1]

Wouldn't mind knowing that myself.

[@ClickspringClips]

G'day lads, I get my supply from Cast Metal Services (Bradken) 07 3326 4800. They do 20kg pails - Cheers :)

[@uncleben4872]

looks like you you can make a few cassette tapes with that One chip

[@resgateerestore]

Very cool

[@deeranfoxworthy6069]

Cutting into that is like forbidden chocolate cake. And once you pour the molten metal in, it'll be with the forbidden spicy sauce.

[@Chr.U.Cas1622]

👍👌👏 again and as always (video and work).

[@bob-ny6kn]

The making of Minions.

[@michaellytinas4529]

Perfection is the name of the planet Chris is coming from. Just saying...

[@Onionbaron]

As my wife says Chris! It's to short!!!

[@loepinat]

nice vid! just a little question, what is the point of having the feeder going deeper than the gutter between the feeder and the hole? for me the point of the feeder is to add "weight" on the liquid so it fills well the cast, and having the gutter higher reduct this effect, so what am i missing?

[@ClickspringClips]

Casting best practices and the reasons behind them are explained well in this book: (amazon affiliate link) amzn.to/2HF3VfL - Cheers :)

[@siddheshsuryavanshi202]

Nice, How do u make this sand?

[@gordon6029]

I have a really good question here. From what I see you work with very tight tolerances. I see you touching off with a side indicator (both sides) to find your centres. This leads me to believe that you are using a DRO on your sherline mill. I have looked at the dro setup they offer and it looks like it hooks onto your handle. Would a system like that be prone to backlash issues? If you run a different type of dro on your sherline then please let me know because it might just sway me to buy one.

[@TheEvertw]

Note the hair on the arms is still in tact...

[@gordon6029]

Gonna give Myford Boy a run for his money?

[@grimlock1471]

I'm a bit confused. He made a part on the lathe, then cast it.... Why not just make it out of metal. Oh, right, this was part of the Antikythera series.

[@jrkorman]

If brass for instance, a blank is expensive. If you have a bunch of scrap around you can melt it down and make your part.

[@leifvejby8023]

Maybe he needed more than one

[@cest7343]

kabuki casting sticks! ^_^

[@matthewrichardson9646]

Such a tease

[@EleanorPeterson]

Knowing the super-fine hand-work Chris is capable of, watching this is as surprising as seeing a butterfly felling an oak tree. 🌳🦋 👀

[@unclerojelio6320]

Tease

[@loganosmolinski4446]

Boop.

[@proteusnet]

Geees Chris, can you at least be crap at one thing to make us normal people feel better when we try some of these things :)