I need 3 small parts made for my r/c truck build. Any chance that you would be able to make them for me if I supply the original plastic parts? Paid of course.
Where do you get the core? Is it made the same way as the mold? I work with castings in my job, but get them from large scale foundry. I've never had the opportunity to visit one.
How do you make an iron sleeve to line the cylinder in your engines? Or is this something that is more practical to buy. It would be interesting to see how you press it in or form it. Thanks
@gohuskies583 The sleeves are made from meehenite cast iron. I have never found any cored material so I have to bore out a solid bar. The are held in place with Loctite high strenghth adhesive.
Just thought i'd et you know, you currently have about half of Brunel University's Motorsport Engineering year one fantasizing about owning their own little foundry one day. As if we needed more reasons to procrastinate.. Great job! keep up the videos we're huge fans of your work.
I'm not quite sure of the best place to ask this, but I guess here is as good a place as any. Do you ever make castings from cast iron? What are the primary differences in casting iron as opposed to aluminum? I know higher temps are involved, and formulating your own cast iron recipe from scrap can be tricky for beginners, but assume we're starting with ingots of a known quality and not scrap metal. Is it hard to make castings using cast iron? Thanks.
@bx2200 I have only ever cast aluminium as this is all I need for my hobby. Cast iron would be bettter for an engine cylinder if the piston ran directly in it. I use an iron liner in my engines and all shafts have bronze bushes. A much higher temperature is needed to melt iron .
i stll dont get this sand core thing. do you just put it into the mold, the metal flows under the core? or how do you make it being in the middle of the cast?
@fauxgt This is one of the most asked questions. I have set up a page at myfordboy.blogspot.com that explains it in detail withe photos. Metalcasting FAQ hints and tips.
Question regarding venting: I see you add some vents to items, but the vent is not always at the 'top' of the casting. Do you have any problems with air collecting at the top of the castings? I have cast plastic items before and allowing air holes is a big deal. Without them the air prevents the plastic from flowing to the top of the casting. With metal casting does the air simply escape through the sand?
@CliffordDickinson I usualy only add a vent for the cores, without this gasses will push the metal away from the core. It is nornal practice to add vents to the mould but I haven't found it necessary to do this. The sand lets gasses escape. I do however always add a riser ,except for very small items and position it at the highest point if the shape allows for this.
should have put "seperating poweder" on pattern itself! banging and tapping can distort the casting. if you dont think thats posible, just think, he already accounted for 2% shinkage, wich on a little guy is next to nothing, so if 2% shinkage can affect the out come, so can givin it a little tappy tappy!
Thank you for taking the time to make this series of videos. We have just started casting at my house. There is much I have learned from your videos. Thanks again.
I am really impressed with the level of detail in your impression forms. I understand that priming, filling and painting twice makes for quite a smooth impression surface. How fine is your sand? I want to make a compensator for my Beretta pistol. I have a drawing of the device and there are many compound curves to it. Could i email you a picture of the comp so you could give me a few thoughts on it? ehymel@netzero.net
@myfordboy Hi There! I was wondering how you could make a home casted piece stronger? The piece I would like to make has to be pretty strong. Any Advice?
Seeing this was very cool. The basics of this process was taught to me in metal shop in Jr. High school...which was before we had personal computers and many aspired to work at the local Ford plant.
By the way. What's the deal with Model Engineering in the UK? It seems to be the hotbed of really talented machinists.
That sort of thing seems to be a lost art here in the states. Wood working is popular, though. My friends and associates think I was nuts for buying a milling macine!
Thankyou for showing exactly how long it takes to do things so people know what to really expect. I really hate tutorials that "speed it up." If it's a slow or ugly process, that's what I wanna see.
WOW!!! ... wonderful videos. I haven't made a mold since middle school. Were do you get the plans to start from? I agree with other comments. You are brilliant!!!
what will the important differences be between the metal you melt and cast at home compared to a production factory. there will be differences in the metal crystal formation won't . have people built full sized car engines with home casting.
@JorProductions Well I did some research just yesterday actually, because I will be doing a melt this weekend. From what I previously understood, parting dust should be hydrophobic. My new research says this claim is stupid, although a hydrophobic sand/dust would work better.
but you say you add oil to it too? that doens't sound right? I mean most oils expand under heat correct?
and are there other clay compounds you've used other than bentonite? (even though bentonite seems like it would work well as it is very easy to come by is not very expensive)
Excellent work! To those watching who want to try this and by all means do... Remember! Molten Iron bounces off your skin, everything else STICKS! for a long time until pealed off. Make sure your clothes are not synthetic, only cotton or wool, no nylon jackets or running shoes. The harbor freight leather welding sleves are worth it. If something goes wrong, run! clean up later. Otherwise, make something great! Don't wake up and find yourself 90 yrs old and never tried anything!
What would do you use for the patterns (maple) ? my grand use to use maple because you can machine it (very hard) he said anyway, Joseph T fly2000jtb.
Amazing work on the patterns! I'd love to see a video detailing how you make a pattern that complicated and yet keep the proper draft so that the pattern can be removed. Thanks for all the videos!
how does the core end up surrounded by metal in the end, when it was lain in the mold? does it float up so that metal goes both under it and over it? Also, does the core burn out, how is it removed?
I get you now i understand....so that's really green sand which has darkened with use?....eBay is also a good place to get reasonable foundry supplies from....I've just bought a 3kg size electrcic furnace and waiting for it to come....i have a flamefast furnace from an old school but getting the propane gas for it is a bit tricky so have decided to go electric as i like making small stuff like locks out of brass and small electric motor casings from ally :-)
Amazing work!! - you should be very proud, that mould looks perfect....Out of curiosity what sand are you using? as i have never seen 'black sand' before....i was always told to use 'green sand' (not green in colour ofcourse!) or petro bond oil sand as they say these are supposed to be good for sand casting, Those wooden flaskes are very neat too :-)
@myfordboy sorry about all the questions on sand but here is another one dose anyone know where i can get my hands on some here in ontario and if so what is it called ??
Best videos I've seen on casting. To keep this valuable material from disappearing into the great digital beyond would you consider making a DVD? Probably not a large market but I'm sure most amateur casters would buy it.
right i understand that but i thought you mixed the sand bentonite and motor oil yourself it can be done ive heard of people doing it just wasnt sure if you did
Is it as good as the sand your using? And wouldn't that sand turn to glass or are you using a different type of sand? And where can you buy that sand that your using?
very good instructional videos. Inspires one to work on these projects. I have a question. Are these sand cores waterproof? If not how can they be made waterproof so that they can be immersed in water for a few hours? Any tip is helpful.
Can't think why you would want to immerse for a few hours!
The idea of the core is form internal detail in the casting and be easily removable.
Adding PVA adhesive to the mix would make it waterproof but you wouldn't get it out of the casting. Do you mean the core or are you refering to the sand mould?
Thank you for your guidance again. I was referring to the sand mould. Using similar technique and materials (sodium silicate, etc.) I am creating other objects for novelties. I was thinking about adapting this technique to create some objects for fish tanks and pools! PVA will help in my case and I will try it out.
My dad did this back in the late 50's for 3 years at a railway co. in Sydney, Australia, I started working with a workshop in the mid 90's with my own artistic ideas, never did this myself, but know the steps, excellent presentation, for education!!
There is a lot of good action in your video, but unless someone already knows what you are doing, it won't be apparent. Can you ad a running vocal description of what you are doing through the process so that those that don't know can follow much better?
Maybe it's because I skipped around a lot but If you talked it would've made me feel less lonely while watching this. :D But an overall nice tutorial indeed.
how do yo prevent having thin spots or holes where the core touches the edges of the mold? Also, what is the core made of? Sand? If so I suppose it could be loosened and poured out after casting. I'm guessing the core was created by packing sand into the assembled piece, but sizing seems to be a problem, especially where the core has to touch some side or something to suspend it and create a void with even sides. Do you add some thickness somehow in certain places or what?
What great series of video's, It's inspired me to go and have a go myself. First thing in the morning I'm of to build a small furnace. Thanks for taking the time to produce the video's.
you make it yourself with sand, bentonite and a little part of flour 00, add a bit of water and after create the core, bake it at 250-300 C° for 30 min.
Assistent mit einem Großbuchstaben. Gesundheit und langes Leben. Vielen Dank. Russland Vlad.
strazhnyj 3 days ago
This has been flagged as spam show
I need 3 small parts made for my r/c truck build. Any chance that you would be able to make them for me if I supply the original plastic parts? Paid of course.
mckeever.bruce@gmail.com
bmckeever1972 1 week ago
How does the sand stay so perfect!?
shrimpinpat 2 weeks ago in playlist Metal Casting at Home The Backyard Foundry
Fantastic! Thank you for sharing. =)
puttebo 3 weeks ago
Where do you get the core? Is it made the same way as the mold? I work with castings in my job, but get them from large scale foundry. I've never had the opportunity to visit one.
cdickenson64 1 month ago
@cdickenson64 Core is made by adding a binder to the sand, see my core making page at myfordboy.blogspot.com
myfordboy 1 month ago
@cdickenson64 Core is made by adding a binder to the sand, see my core making page at myfordboy.blogspot.com
myfordboy 1 month ago
@myfordboy I did, in order... It was very interesting and informative. Thank you for posting these videos.
cdickenson64 4 weeks ago
Can you re-use the sand ?
jsrnf 1 month ago
@jsrnf yes
myfordboy 1 month ago
Where do you get your sand from?
110samec 1 month ago in playlist Uploaded videos
@110samec It was given to me. I don't know the sourse but Jonh Winter, Halifax sell something simular.
myfordboy 1 month ago
@110samec Its a water bonded greensand
myfordboy 1 month ago
Where du you get your sand from?
110samec 1 month ago in playlist Uploaded videos
who'd have thought that talcum powder would be used in doing something SO BLOODY MANLY.
tisMrJoo 1 month ago in playlist Metal Casting at Home The Backyard Foundry
do you use any kind of binder with the sand?
etofun123 1 month ago
@etofun123 The sand is natural clay bonded
myfordboy 1 month ago
@myfordboy what sort of sand is it?
ASSMYLICK 1 month ago in playlist Metal Casting at Home The Backyard Foundry
can I apprentice with you?
momo671 1 month ago
@momo671 Its too far for you to travel to England each day!
myfordboy 1 month ago
@myfordboy very true.
momo671 1 month ago
wat is that black stuff you are using to fill in the mould?
gotopederaca1 1 month ago
@gotopederaca1 This is moulding sand
myfordboy 1 month ago
Love the Videos. Thanks for sharing them.
MrInventWorld 2 months ago
Do you use any other venting other than the one riser hole?
DrFrankensteam 2 months ago
@DrFrankensteam Normal practice is to place small vents but I never do this and have no problems. It probably depends on the sand you are using.
myfordboy 2 months ago
@myfordboy Thank you for your prompt response!
DrFrankensteam 2 months ago
How do you make an iron sleeve to line the cylinder in your engines? Or is this something that is more practical to buy. It would be interesting to see how you press it in or form it. Thanks
gohuskies583 2 months ago in playlist Metal Casting at Home The Backyard Foundry
@gohuskies583 The sleeves are made from meehenite cast iron. I have never found any cored material so I have to bore out a solid bar. The are held in place with Loctite high strenghth adhesive.
myfordboy 2 months ago
@myfordboy Do you think I can Use Cement??.. to Cast for Medal??
Workalldayandnight 1 month ago in playlist casting metal
@Workalldayandnight Cement would crack or explode with the heat of the metal.
myfordboy 1 month ago
@myfordboy Ok.. What If the Pendant was 2 inches Long?? and If the mold was small in design??
Workalldayandnight 1 month ago
Just thought i'd et you know, you currently have about half of Brunel University's Motorsport Engineering year one fantasizing about owning their own little foundry one day. As if we needed more reasons to procrastinate.. Great job! keep up the videos we're huge fans of your work.
yorbenm 2 months ago
@yorbenm I am pleased you find the videos helpful, feel free to ask any questions.
myfordboy 2 months ago
I'm not quite sure of the best place to ask this, but I guess here is as good a place as any. Do you ever make castings from cast iron? What are the primary differences in casting iron as opposed to aluminum? I know higher temps are involved, and formulating your own cast iron recipe from scrap can be tricky for beginners, but assume we're starting with ingots of a known quality and not scrap metal. Is it hard to make castings using cast iron? Thanks.
bx2200 2 months ago
@bx2200 I have only ever cast aluminium as this is all I need for my hobby. Cast iron would be bettter for an engine cylinder if the piston ran directly in it. I use an iron liner in my engines and all shafts have bronze bushes. A much higher temperature is needed to melt iron .
myfordboy 2 months ago
i stll dont get this sand core thing. do you just put it into the mold, the metal flows under the core? or how do you make it being in the middle of the cast?
fauxgt 3 months ago
@fauxgt This is one of the most asked questions. I have set up a page at myfordboy.blogspot.com that explains it in detail withe photos. Metalcasting FAQ hints and tips.
myfordboy 3 months ago
Do you heat treat your castings?
kingmike40 3 months ago in playlist Home Metalcasting by myfordboy
@kingmike40 No, I haven't had the need to do this.
myfordboy 3 months ago
Thank you, great job
katarinajoan 3 months ago
David,
Question regarding venting: I see you add some vents to items, but the vent is not always at the 'top' of the casting. Do you have any problems with air collecting at the top of the castings? I have cast plastic items before and allowing air holes is a big deal. Without them the air prevents the plastic from flowing to the top of the casting. With metal casting does the air simply escape through the sand?
CliffordDickinson 4 months ago
@CliffordDickinson I usualy only add a vent for the cores, without this gasses will push the metal away from the core. It is nornal practice to add vents to the mould but I haven't found it necessary to do this. The sand lets gasses escape. I do however always add a riser ,except for very small items and position it at the highest point if the shape allows for this.
myfordboy 4 months ago
Hi and thank you for sharing this video, what type of sand do you use??
wwwtattooishcom 4 months ago
@wwwtattooishcom Its a foundry greensand.
myfordboy 4 months ago
dont forget the motor oil
thecookman123 5 months ago
should have put "seperating poweder" on pattern itself! banging and tapping can distort the casting. if you dont think thats posible, just think, he already accounted for 2% shinkage, wich on a little guy is next to nothing, so if 2% shinkage can affect the out come, so can givin it a little tappy tappy!
mike8086 7 months ago
Thank you for taking the time to make this series of videos. We have just started casting at my house. There is much I have learned from your videos. Thanks again.
Barry Young
Tacoma, WA, USA
youngcameracompany 8 months ago
I am really impressed with the level of detail in your impression forms. I understand that priming, filling and painting twice makes for quite a smooth impression surface. How fine is your sand? I want to make a compensator for my Beretta pistol. I have a drawing of the device and there are many compound curves to it. Could i email you a picture of the comp so you could give me a few thoughts on it? ehymel@netzero.net
musicmaneman1 8 months ago
what kind of sand/clay/dirt is that and where can i buy it?
Luke00126 8 months ago
@Luke00126 Please read the other comments on this video for your answer.
myfordboy 8 months ago
@myfordboy Hi There! I was wondering how you could make a home casted piece stronger? The piece I would like to make has to be pretty strong. Any Advice?
thehumblepepper 9 months ago
@thehumblepepper Thicker construction or adding webs would increace the strength but it hard to advice without knowing the shape you have in mind.
myfordboy 8 months ago
Seeing this was very cool. The basics of this process was taught to me in metal shop in Jr. High school...which was before we had personal computers and many aspired to work at the local Ford plant.
Search4TruthReality 9 months ago
what is the recipe to make that molding sand? Bentonite clay and sand? What are the % of each?
ed563 9 months ago
@ed563 My sand is not home made but the usual mix is up to 10% bentonite.
myfordboy 9 months ago
@myfordboy That's okay, sir. I understand. :)
JBladerMS 9 months ago
@myfordboy do you take custom requests? If I sent something to you, could you make a mold out of it and cast a metal replica?
JBladerMS 9 months ago
@JBladerMS As I am in the UK and you are in US probaly not practical. (Expensive)
myfordboy 9 months ago
How hot will this foundry get? Also, if I ran a hydrogen gasline to it, could I melt high carbon steel?
metalkidjohn 9 months ago
@metalkidjohn The type of refactory I used limits its use to aluminium melting. A commercial refactory would allow higher temperatures.
myfordboy 9 months ago
By the way. What's the deal with Model Engineering in the UK? It seems to be the hotbed of really talented machinists.
That sort of thing seems to be a lost art here in the states. Wood working is popular, though. My friends and associates think I was nuts for buying a milling macine!
Ziknazoo 10 months ago
Presumably that's aluminium. Will 6061 work? I have access to a never ending supply of 6061 chips. I have been itching to try foudry work.
Ziknazoo 10 months ago
@Ziknazoo 6010 contains magnesium which can combust so is not realy suitable. Best to find some other alloy that has been cast before.
myfordboy 10 months ago
Thankyou for showing exactly how long it takes to do things so people know what to really expect. I really hate tutorials that "speed it up." If it's a slow or ugly process, that's what I wanna see.
bedofrazorsqwerty 11 months ago
Two things I need help with plz
One what is the black powder he uses
Two I need to make a metal that is highly magnetic but durable........ It's for a rail gun
deathcorepyro 11 months ago
WOW!!! ... wonderful videos. I haven't made a mold since middle school. Were do you get the plans to start from? I agree with other comments. You are brilliant!!!
childofgodii 11 months ago
what will the important differences be between the metal you melt and cast at home compared to a production factory. there will be differences in the metal crystal formation won't . have people built full sized car engines with home casting.
210482fmj 1 year ago
DON'T USE TALC!
WHAT ARE YOU DOING!
UnstoppableSlinky 1 year ago
@UnstoppableSlinky Can you let us know what is wrong with using talc? I have not found any literature saying not to so far.
JorProductions 9 months ago
@JorProductions Well I did some research just yesterday actually, because I will be doing a melt this weekend. From what I previously understood, parting dust should be hydrophobic. My new research says this claim is stupid, although a hydrophobic sand/dust would work better.
UnstoppableSlinky 9 months ago
What is the black stuff your pounding in beside the plugs?
norvman 1 year ago
@norvman Moulding sand
myfordboy 1 year ago
@myfordboy hummm so they make a special sand for that? where can you get that from?
norvman 1 year ago
@norvman Foundry supplier, or make your own by adding bentonite clay to playsand.
myfordboy 1 year ago
@myfordboy humm bentonite I'm familure with as I have done some pottery clay mixing before...
I dont' remember it being 'black' in color however... does that make any difference?
norvman 1 year ago
@norvman
As long as you don't use black powder ;)
Nabo00o 1 year ago
@Nabo00o LOL! yah...
norvman 1 year ago
@myfordboy Mine is a natural sand and was brown but has darkend with use. The home made stuff would be sand colour.
myfordboy 1 year ago
@norvman the sand is, "clay, fine sand and oil"
veggievampire360 1 year ago
@veggievampire360 Right ... Like myfordboy said bentonite...
but you say you add oil to it too? that doens't sound right? I mean most oils expand under heat correct?
and are there other clay compounds you've used other than bentonite? (even though bentonite seems like it would work well as it is very easy to come by is not very expensive)
norvman 1 year ago
bro ur amazing lol good skills
gamling1111 1 year ago
You make it look so easy!
havocdaemon 1 year ago
Is it easy or cheap to make a foundry at home to melt Brass??
jonneyj 1 year ago
@jonneyj Its not expensive but you would need a refactory that would withstand the higher temperature that brass needs.
myfordboy 1 year ago
how can I make a curved casting?
sonicfreak04 1 year ago
@sonicfreak04 See my video Metal casting part 7
myfordboy 1 year ago
You should add to your credits Narrated by: (leave this space blank)
Seriously very informational.
I fancy myself a backyard metal caster but until watching your series have avoided castings involving cores and odd profiles.
You have given me inspiration to take it to the next level.
Thank you.
dedeye1 1 year ago
How would you go about casting a hollow object?
Truthhurts3pm 1 year ago
@Truthhurts3pm The object I am casting IS hollow
myfordboy 1 year ago
is this like metal mold cause were doing this in metals
overdosedgamer14 1 year ago
OH MY GOD! THIS IS AMAZING, YOU MEAN YOU DON'T NEED ANY EXPENSIVE MACHINES TO MAKE METAL PARTS LIKE THIS?
WOW!
libertyeagle777 1 year ago
try serching google on green sand kidbuu511
racerboylowy 1 year ago
maybe it's possible to use a 3D printer to make molds, a RepRap printer?
kloktik 1 year ago
just so happened that i watched this video before watching Iron Man... Stark was tapping the metal tube when he was making his mini arc reactor...
HeadShot360IN 1 year ago
were did you get your sand and where can i find it
1990DomDom 1 year ago
were did you get your saand and where can i find it
1990DomDom 1 year ago
is that sand reusable??
HeadShot360IN 1 year ago
@HeadShot360IN Sand is reuseable.
myfordboy 1 year ago 2
Excellent work! To those watching who want to try this and by all means do... Remember! Molten Iron bounces off your skin, everything else STICKS! for a long time until pealed off. Make sure your clothes are not synthetic, only cotton or wool, no nylon jackets or running shoes. The harbor freight leather welding sleves are worth it. If something goes wrong, run! clean up later. Otherwise, make something great! Don't wake up and find yourself 90 yrs old and never tried anything!
Gregkret 1 year ago
can any one tell me plzz how i can made casting sand at home??
Cosmicstorm090078601 1 year ago
What's in the binder? And what size is the sand grit?
deaftodd 1 year ago
What would do you use for the patterns (maple) ? my grand use to use maple because you can machine it (very hard) he said anyway, Joseph T fly2000jtb.
fly2000jtb 1 year ago
@fly2000jtb I am useing MDF mostly
myfordboy 1 year ago
where can i find that molding sand and for how much?
kidbuu511 1 year ago
@kidbuu511 I'm in the Uk, don't know whats available in the US
myfordboy 1 year ago
Comment removed
kidbuu511 1 year ago
what kind of metal are you useing
nolandandfriends 1 year ago
@nolandandfriends Aluminium
myfordboy 1 year ago
Amazing work on the patterns! I'd love to see a video detailing how you make a pattern that complicated and yet keep the proper draft so that the pattern can be removed. Thanks for all the videos!
CanFire9 1 year ago 2
@CanFire9
I too would be interested in the pattern making process.
TheManFromAlaska 1 year ago
@TheManFromAlaska
OK I saw the rest of your videos. These are a great source of info.
Thanks -- TMFA
TheManFromAlaska 1 year ago
Now that is the coolest thing I have seen in quite a while! Congratulations on such a well made and informative vid.
SuperAlmac 1 year ago
this is fascinating! thanks for putting this up!
persebra 1 year ago
What kind of black sand is that? What is it called? Where do you get it?
pkrska 1 year ago
@pkrska Its a moulding sand from a foundry supplier. Its dark brown and has gone darker with use.
myfordboy 1 year ago
how does the core end up surrounded by metal in the end, when it was lain in the mold? does it float up so that metal goes both under it and over it? Also, does the core burn out, how is it removed?
Real nice vid and setup btw. Thanks.
whatthemessman 1 year ago
@whatthemessman Core is supported at the ends so does not touch the bottom.
Can be removed by digging out with screwdriver or will disolve in water.
myfordboy 1 year ago
Did you have any training or job experiences before making your back yard foundry or is it just something you decided to start as a hobby one day?
maricklee 1 year ago
@maricklee My hobby is model engineering and I wanted make my own castings. Its all self taught.
myfordboy 1 year ago
too cool
jdat747 1 year ago
regarding the core, how do you make that ? it's sand as well right?
Dach101 1 year ago
@Dach101 Core is made from sand as shown in my part 5 video.
myfordboy 1 year ago
I get you now i understand....so that's really green sand which has darkened with use?....eBay is also a good place to get reasonable foundry supplies from....I've just bought a 3kg size electrcic furnace and waiting for it to come....i have a flamefast furnace from an old school but getting the propane gas for it is a bit tricky so have decided to go electric as i like making small stuff like locks out of brass and small electric motor casings from ally :-)
BITTYBOY121 1 year ago
@BITTYBOY121 why is getting propane "tricky"?
davetileguy 1 year ago
Amazing work!! - you should be very proud, that mould looks perfect....Out of curiosity what sand are you using? as i have never seen 'black sand' before....i was always told to use 'green sand' (not green in colour ofcourse!) or petro bond oil sand as they say these are supposed to be good for sand casting, Those wooden flaskes are very neat too :-)
BITTYBOY121 1 year ago
@BITTYBOY121 Sand is realy a dark brown colour. unknown origion but came from a foundry supplier.
myfordboy 1 year ago
@myfordboy sorry about all the questions on sand but here is another one dose anyone know where i can get my hands on some here in ontario and if so what is it called ??
GeorgeVeld 1 year ago
just one question what kind of sand did you use inthis casting?plz
very very very nice video
petrovish7 2 years ago
It came from a foundry supplier.
myfordboy 2 years ago
awesome / thank you for sharing!!!
walaxski 2 years ago
Hi Mr.
First, I would like to congrat you for the amazing videos about Casting.
I'm a Materials Science and Engineering undergraduate student, and I'm at the fourth year now.
I just have a question: The scrap that you use as raw material for the casting it's Aluminium Scrap?
We will be very glad if you can answer that one.
Cheers!
danielscalabrin 2 years ago
Its all scrap alloy. Car engine parts, garden furnature, light fittings, whatever I can get for free.
I only use metal that has been cast before though, no drinks cans or extrusions.
myfordboy 2 years ago
dont forget to mention that this all stuff is very dangerous ...
Mushketer888 2 years ago
Best videos I've seen on casting. To keep this valuable material from disappearing into the great digital beyond would you consider making a DVD? Probably not a large market but I'm sure most amateur casters would buy it.
N9779D 2 years ago
I could put the videos onto DVD.
Anyone interested?
myfordboy 2 years ago
@myfordboy I would be interested in the DVD idea.
uncoordinatedvids 8 months ago
I am unable to source any foundry sand or green sand as i live in a very remote area. what are peoples thoughts on the using fine sand and oil?
or perhaps dry powdered clay might work ?
lankhazard 2 years ago
I've been able to manage using fine craft sand mixed with crushed cat litter. You might try giving that a shot.
Bendyboy3921 2 years ago
Very tight and precise mold boxes. You did a very nice job building them. I'm happy I came across this video. 5stars!
mdivinc 2 years ago
what are the ratios for your sand?
panzuman 2 years ago
Sand is a ready made foundry product.
myfordboy 2 years ago
right i understand that but i thought you mixed the sand bentonite and motor oil yourself it can be done ive heard of people doing it just wasnt sure if you did
panzuman 2 years ago
What about cat litter?
DarthBarkerSithLord 2 years ago
Is it as good as the sand your using? And wouldn't that sand turn to glass or are you using a different type of sand? And where can you buy that sand that your using?
DarthBarkerSithLord 2 years ago
very good instructional videos. Inspires one to work on these projects. I have a question. Are these sand cores waterproof? If not how can they be made waterproof so that they can be immersed in water for a few hours? Any tip is helpful.
Thanks.
nagbelad 2 years ago
Can't think why you would want to immerse for a few hours!
The idea of the core is form internal detail in the casting and be easily removable.
Adding PVA adhesive to the mix would make it waterproof but you wouldn't get it out of the casting. Do you mean the core or are you refering to the sand mould?
myfordboy 2 years ago
Thank you for your guidance again. I was referring to the sand mould. Using similar technique and materials (sodium silicate, etc.) I am creating other objects for novelties. I was thinking about adapting this technique to create some objects for fish tanks and pools! PVA will help in my case and I will try it out.
nagbelad 2 years ago
btw, I never saw the workshop I worked with use a runner & feeder [very interesting, can you explan the importance of this detail],
Now I understand why the top part of the cast drops while the metal cools causing a fault in its curvature on its upper side [facing the sky]
milionis 2 years ago
The runner and feeder give extra head to the metal and provides a supply of metal to replace any shrinkage.
Its more important in casting alloy than other metals. The top of the feeder has a distinctive depression it it were the metal shrink as it cools.
myfordboy 2 years ago
My dad did this back in the late 50's for 3 years at a railway co. in Sydney, Australia, I started working with a workshop in the mid 90's with my own artistic ideas, never did this myself, but know the steps, excellent presentation, for education!!
bravo
milionis 2 years ago
There is a lot of good action in your video, but unless someone already knows what you are doing, it won't be apparent. Can you ad a running vocal description of what you are doing through the process so that those that don't know can follow much better?
MrChannelFever 2 years ago
Maybe it's because I skipped around a lot but If you talked it would've made me feel less lonely while watching this. :D But an overall nice tutorial indeed.
naxps 2 years ago
I loved doing this in highschool. The talcum was a nice touch.
TVRFan11 2 years ago
Very Nice. Thanks for this.
TheManFromAlaska 2 years ago
oh and i live in the US,California and do you know where i can get the materials.
xnano78 2 years ago
I'm in the Uk so cant be specific but if you read through the comments below from others there are suggestions from guys in the US.
myfordboy 2 years ago
that is a lot of skill
carl4766 2 years ago
I thought it was a good demo. great instruction.
terence20001 2 years ago
how do yo prevent having thin spots or holes where the core touches the edges of the mold? Also, what is the core made of? Sand? If so I suppose it could be loosened and poured out after casting. I'm guessing the core was created by packing sand into the assembled piece, but sizing seems to be a problem, especially where the core has to touch some side or something to suspend it and create a void with even sides. Do you add some thickness somehow in certain places or what?
wdinkins281 2 years ago
The core is suspended on "core prints" which are part of the pattern.
I think all your other questions will be answered if you watch part 2 to 10 Metal Casting at Home.
myfordboy 2 years ago
do you use commercial green sand or do you make it like some people do?
THX5569 2 years ago
I am using a commercial sand. I have't tried the homemade stuff.
myfordboy 2 years ago
Awesome! Well done.
RCpilot2008 2 years ago
is that sand or mud can some 1 plz reply
thejellybean12 2 years ago
Sand.
myfordboy 2 years ago
it is called green sand sometimes
SSWOLFENSTEINSS 2 years ago
What great series of video's, It's inspired me to go and have a go myself. First thing in the morning I'm of to build a small furnace. Thanks for taking the time to produce the video's.
SirDigit 2 years ago
hi i'm a person of youtube.
robotpredator8 2 years ago
where can i get a sand core?
robotpredator8 2 years ago
Part 5 metaal casting video shows how to make it
myfordboy 2 years ago
you make it yourself with sand, bentonite and a little part of flour 00, add a bit of water and after create the core, bake it at 250-300 C° for 30 min.
skikkizr 2 years ago
I have also found all the bentonite clay needed at a farm supply store for sealing stock tanks.
Upub2 2 years ago