Thank you myford for keeping your word that you will going to show a sand casting video & you did! You made my day when I saw your video was posted & I was smiling on your whole video making that wheel. Once again Thank you myford, This one I will share & a like & a thumbs up & 5 aluminum stars :)
How nice it is to see you doing a casting again. As much as I enjoy the videos of you doing machine work, my favourite videos are the ones where you cast.
You are a true inspiration, its 11-45 pm and watching your videos makes me want to get into the workshop NOW. Thankyou for cranking up my motivation. Unfortunately they also attract the ebay monster for things like moulding sand!! I'm sure the missis will understand!
I've always wanted to try casting but haven't been brave enough to try it yet. You make it look so easy but I know it is far from being easy. Thanks for the video enjoyed it!
Didn't realise you were from the uk or I would have subscribed a while back. Sounded like my home town from the seagulls. You've got a great channel by the way, thanks for the videos.
Sand from Bromsgrove, chair leg by Chippendale. Has the missus noticed her table cloth and spoon are missing yet? What is the temperature of the molten metal? You missed that caption out? Brilliant as usual.
You seem to be able to do everything to perfection. Did you make the knee pad trousers?, I'd like a pair of those. I spend that much time on all fours, I have toes growing out of my kneecaps.
+Nodrog Awson They are standard tradesmens trousers. Wore them all the time in my day job as an electrician. Snickers is one brand ( not the chocolate bar)
+myfordboy Thanks for replying. As an electrician down the mine, I was used to wearing kneepads on outside and they were free issue. Just looked at price of Snickers and it looks like my new toes will have to grow a bit more before I can afford a pair.
+Nodrog Awson I got mine after being off wok for 6 weeks with damaged knees and then it took about 5 years before the stopped constantly aching. Best to prevent the problem before it happens. If you are in the UK there are cheaper alternatives from Wickes, Toolstaion, etc.
+Silas Marner On a small casting the riser in the centre is not needed. The centre riser vents the mould and also feeds it with metal as it shrinks whist cooling. If the hub was larger a riser may be needed.
Great Work ! I noticed you did not have any "vent" to allow the air an escape route. Most of your pours you have an entrance and exit side for the aluminum. Is there a reason ? You got a great casting so I'm not knocking your procedure, just curious.
+John R Pannell Lost foam has it's uses but if you want to make 2 or more wheels like in this case you would need to make a foam pattern for every cast. With a wooden pattern the number of castings from the one pattern is unlimited.
Do you cast each wheel individually, or do you mold several at a time in one box when you need more than one? Built in kneepads also handy when approaching Missus Myfordboy for the loan of a tablecloth.....
+nick Clarke I can add another pattern to the mould if the flask is large enough. For this project I can do this rear wheel and a front wheel in the same flask.
Could you explain to me how a wheel could be cast like that with a groove for rope or belt cast all in one. I have never figured it out. I have seen large church bell pulleys made that way. Some are huge and look like the spokes and pulley grave was cast at one time.
To cast the pulley with a groove you would need a 3 part flask instead of the usual 2. The centre one would use a smaller diameter pattern than the other 2 to make the groove . Another way would be to use a 2 part flask and mould the pulley in the vertical position with the pattern split across the diameter of the part.
Have you done any lost wax casting? I have something to cast that I think has too much detail to be able to pull out of the mold like that... Figured I could use greensand and then torch inside the sprue hole until the wax is gone. Or does that sound like a bad idea?
+truehybridx1 Lost wax is also referred to as investment casting as the wax is dipped repeatedly into a thin plaster soup to build up the outer shell of the mold, the mold is then dried and later cooked to run off the wax. The "investment" is in the time and materials to make the mold, which is a single use only, but it provides greater detail than greensand and is also suitable for limited production runs up to the point where the cost of the metal molds and injection machinery become affordable.
+flamesfromblazer No coating. it could be the waste oil I am using. The inside of the furnace gets a light yellow brown coating that can be brushed off.
I'm trying to cast a similar pattern but smaller in size the problem is that whenever I try to remove the pattern the Sand stick to the tringle shapes inside and what I'm left with is a circular mold without any tringles and I'm also using green sand which seem to work with my other casting is there any way to prevent this from happening please any help would be great because I've tried many times
Make sure there is plenty of draft on the pattern. It could be your sand is too dry. It will always be harder to get a clean pull with small openings. If there is room you could try adding screws like I did in this video. ruclips.net/video/Db7PF1xqApo/видео.html
myfordboy I think I will try using screws like you did in the video and see what happens but I think the problem is that the pattern is very small and it's very annoying destroying the mold every time if it didn't work I'm switching for sodium silicate sand I tried it before and it seems that I never get the ratio of sodium silicate to sand right. anyway thinks for the reply 👍👍
Nice pattern & good casting odd thing or is it my {aging} eyesight but from lifting the crucible out which was 1'2 full to pouring it appeared to be 3/4 full!! ,just an observation david!!not a criticism,keep up the good work Graham.
@@myfordboy So I'm not seeing things then'probably only a fellow foundryman would spot that thanks for the reply & even at my age I've picked up some usefull tips from you. Graham.
Great video as always. I'm glad you let us know the status of your knees, I was a bit concerned! Lol. That made me laugh a lil. I noticed that you put the gate into the bottom half of the testing is there any reason for that? I thought you had to have a vent for the gases to escape also? Thanks for yet another great video!
+jeff edison On a small casting the riser in the centre is not needed. The centre riser does vent the mould and also feeds it with metal as it shrinks whist cooling. If the hub was larger a riser may be needed.
Traction engine - part 7 begins with "Wheel castings as supplied" which confused me since you've been making your own castings. So this video reveals you supplied the casting to yourself.
+me3333 The furnace works great, I don't think I would change anything other than dispense with the needle valves on the air line as the oil flow can be controlled with the air regulator.
Thank you myford for keeping your word that you will going to show a sand casting video & you did! You made my day when I saw your video was posted & I was smiling on your whole video making that wheel. Once again Thank you myford, This one I will share & a like & a thumbs up & 5 aluminum stars :)
How nice it is to see you doing a casting again.
As much as I enjoy the videos of you doing machine work, my favourite videos are the ones where you cast.
Always enjoy watching a casting video. Good to hear the gentle roar of that furnace again too.
CornishMiner você vc bfbvbhgggg
More and more of the furniture seems to be missing in the Myford household? Beyootiful video as usual. You are an inspiration to us all.
You are a true inspiration, its 11-45 pm and watching your videos makes me want to get into the workshop NOW. Thankyou for cranking up my motivation. Unfortunately they also attract the ebay monster for things like moulding sand!! I'm sure the missis will understand!
+yetisportisme Disclaimer " I am not responsible for any purchases made after watching my videos"
Amazing video as always!
I tock up making my own castings for model engines thanks to the inspiration I got from watching your videos.
What a beautiful work! Art and engineering mixing together into a practical product.
That sand looks perfect for the job. That came out great.
Beautifully result of the casting.
Beautiful work, and you read my mind when you mentioned your knees on that rough driveway surface!
+ArtemiaSalina
Mine too! I think MFB's knees are an even earlier vintage than mine.
I've always wanted to try casting but haven't been brave enough to try it yet. You make it look so easy but I know it is far from being easy. Thanks for the video enjoyed it!
Sus vídeos son estupendos, no me canso de verlos.
Antonio Merichal Cuesta vfddfdddddsssssssaaaassssxfghvbgfreedddeeeessss
Sounds relaxing with those gulls in the background lol? As usual, great work sir.
Didn't realise you were from the uk or I would have subscribed a while back. Sounded like my home town from the seagulls. You've got a great channel by the way, thanks for the videos.
From your user name looks like we have the same occupation too.
Sand from Bromsgrove, chair leg by Chippendale. Has the missus noticed her table cloth and spoon are missing yet? What is the temperature of the molten metal? You missed that caption out? Brilliant as usual.
+Roger Crier I pour at 640C
+myfordboy How many casts do you get out of your sand before replacing or do you ever replace it?
+me3333 I have done hundreds of casts with this sand. It last forever. if the green strength should drop adding a new bag of sand should revive it.
+myfordboy bit like The broom in Only Fools and Horses then
Masterclass! I bet even tubalcain enjoyed that!
This is so relaxing to watch
You seem to be able to do everything to perfection.
Did you make the knee pad trousers?, I'd like a pair of those.
I spend that much time on all fours, I have toes growing out of my kneecaps.
+Nodrog Awson They are standard tradesmens trousers. Wore them all the time in my day job as an electrician. Snickers is one brand ( not the chocolate bar)
+myfordboy Thanks for replying. As an electrician down the mine, I was used to wearing kneepads on outside and they were free issue. Just looked at price of Snickers and it looks like my new toes will have to grow a bit more before I can afford a pair.
+Nodrog Awson I got mine after being off wok for 6 weeks with damaged knees and then it took about 5 years before the stopped constantly aching.
Best to prevent the problem before it happens. If you are in the UK there are cheaper alternatives from Wickes, Toolstaion, etc.
Fantastic results! Why did this succeed without a "exhaust" hole perhaps across the wheel on the other side? Thanks in advance for your response.
+Silas Marner On a small casting the riser in the centre is not needed. The centre riser vents the mould and also feeds it with metal as it shrinks whist cooling. If the hub was larger a riser may be needed.
Hello Myfordboy, at what temperature do you pour the aluminium? - is there a max temp not to go above? Thanks. Ade
I go for 720 -740. I would say that's max.
@@myfordboy Thabkyou
Great Work ! I noticed you did not have any "vent" to allow the air an escape route. Most of your pours you have an entrance and exit side for the aluminum. Is there a reason ? You got a great casting so I'm not knocking your procedure, just curious.
+harriscreekcentral I'll hazard a guess and say because there are no dead ends in the casting for gas to build up.
Great job again, thanks for posting.
Thanks my friend!
I wonder if you have tried play sand and Styrofoam for mold it works like lost wax casting thanks for posting
+John R Pannell Lost foam has it's uses but if you want to make 2 or more wheels like in this case you would need to make a foam pattern for every cast. With a wooden pattern the number of castings from the one pattern is unlimited.
Nicely done.
Do you cast each wheel individually, or do you mold several at a time in one box when you need more than one? Built in kneepads also handy when approaching Missus Myfordboy for the loan of a tablecloth.....
+nick Clarke I can add another pattern to the mould if the flask is large enough. For this project I can do this rear wheel and a front wheel in the same flask.
Could you explain to me how a wheel could be cast like that with a groove for rope or belt cast all in one. I have never figured it out. I have seen large church bell pulleys made that way. Some are huge and look like the spokes and pulley grave was cast at one time.
To cast the pulley with a groove you would need a 3 part flask instead of the usual 2. The centre one would use a smaller diameter pattern than the other 2 to make the groove .
Another way would be to use a 2 part flask and mould the pulley in the vertical position with the pattern split across the diameter of the part.
Would you sometime make a spoked one with the grooves. Some of those maching pulleys were fancy with curved spokes even sometimes 6 spokes.
just a question why not making a riser this time ??
grat job anyway !
+Proffinouille On a small casting it's possible to get away without the riser.
Where do you get the little air pump 6:41
Ebay. Search for camera puffer.
Thanks for the well done videos!
What I have wondered is with all of the casting that you do, you must have a lot of patterns. How do you store all of them?
+Chris Brown They are in a box in a cupboard.
QUESTION - Does the addition of the Sodium Carbonate eliminating hydrogen reduce/eliminate porosity?
+Mike C. Yes that's correct.
Have you done any lost wax casting? I have something to cast that I think has too much detail to be able to pull out of the mold like that... Figured I could use greensand and then torch inside the sprue hole until the wax is gone. Or does that sound like a bad idea?
+truehybridx1 I havent done any lost wax although i do have the materials to try it.
I don't think the wax would run out off a greensand mould.
+truehybridx1 Lost wax is also referred to as investment casting as the wax is dipped repeatedly into a thin plaster soup to build up the outer shell of the mold, the mold is then dried and later cooked to run off the wax. The "investment" is in the time and materials to make the mold, which is a single use only, but it provides greater detail than greensand and is also suitable for limited production runs up to the point where the cost of the metal molds and injection machinery become affordable.
Great vid sir
Have you coated your crucible with some sort of kiln wash or similar ? - it looks very light coloured ( mine are dark grey)
+flamesfromblazer No coating. it could be the waste oil I am using. The inside of the furnace gets a light yellow brown coating that can be brushed off.
I'm trying to cast a similar pattern but smaller in size the problem is that whenever I try to remove the pattern the Sand stick to the tringle shapes inside and what I'm left with is a circular mold without any tringles and I'm also using green sand which seem to work with my other casting is there any way to prevent this from happening please any help would be great because I've tried many times
Make sure there is plenty of draft on the pattern. It could be your sand is too dry. It will always be harder to get a clean pull with small openings. If there is room you could try adding screws like I did in this video. ruclips.net/video/Db7PF1xqApo/видео.html
myfordboy I think I will try using screws like you did in the video and see what happens but I think the problem is that the pattern is very small and it's very annoying destroying the mold every time if it didn't work I'm switching for sodium silicate sand I tried it before and it seems that I never get the ratio of sodium silicate to sand right. anyway thinks for the reply 👍👍
What temperature are you looking for?
640C
ive served my foundry time with life long moulders who arnt this good.
+Scrubs R/C (Scrubs R/C) That't a great compliment!
could you cast water pump bowl please. .??
Nice pattern & good casting odd thing or is it my {aging} eyesight but from lifting the crucible out which was 1'2 full to pouring it appeared to be 3/4 full!! ,just an observation david!!not a criticism,keep up the good work
Graham.
Well spotted. I have to record two clips and edit together as I can't move the camera between removing crucible and pouring.
@@myfordboy So I'm not seeing things then'probably only a fellow foundryman would spot that thanks for the reply & even at my age I've picked up some usefull tips from you.
Graham.
Great video as always. I'm glad you let us know the status of your knees, I was a bit concerned! Lol. That made me laugh a lil. I noticed that you put the gate into the bottom half of the testing is there any reason for that? I thought you had to have a vent for the gases to escape also? Thanks for yet another great video!
+jeff edison On a small casting the riser in the centre is not needed. The centre riser does vent the mould and also feeds it with metal as it shrinks whist cooling. If the hub was larger a riser may be needed.
Very nice!
What diameter were those?
4.56"
Cool.
superbe travail ! :)
Perfection !
Hello,Please, Is it possible to buy all castings ? (Roger - France)
+mecanotrain Yes, details are here myfordboy.blogspot.co.uk/p/the-myfordboy-traction-engine.html
Ola.amigo do sapato furado você é fantastico,poderia me ensinar derreter cavaco de torno de aluminio coloquei no cadinho virou escoria,obrigado.
Nice!!!
1:00 wery important information !)
I need to get my GF a pair of those trousers.
I bet your cakes come out of the cake tin first time without sticking and are as awesome as your castings!! love watching these videos. thanks.
for next, apply baby powder in the pattern for easy separate
How do you not constantly loose all those pins you toss around?..lol
Second
Traction engine - part 7 begins with "Wheel castings as supplied" which confused me since you've been making your own castings. So this video reveals you supplied the casting to yourself.
+RoscoRSR2 I can supply castings for this project.
u should work in a machine shop
That's Dirt, Not Sand.
No, it's sand.
First
Since you have been using this furnace for a while is there anything you would have done differently/changed or is it just right?
+me3333 The furnace works great, I don't think I would change anything other than dispense with the needle valves on the air line as the oil flow can be controlled with the air regulator.