George, Yes, I guess I could do that but I find that a quick up/down shake just before spraying seems to suffice - any doubt and I twitch the trigger with my (gloved) finger over the nozzle of the gun, the air blows back through the can and agitates the spray very well indeed.... Martin
Mark, Yes, to a certain extent. The die has to be stripped and cleaned every days run if the part appearance is to be maintained and it takes a day or two (or three!) to do this and then re set up. Still at 60 per days casting it sure beats 6 per day as sand castings like I used to do 😊… Martin
aga Hmm, "casty" I will have to refer that to our resident lexicographer Perry over at Swdweeb. Perhaps he will class it with "Casted" a term he remonstrated against just the other day, see here th-cam.com/video/FM0r0sMCDEo/w-d-xo.html Perhaps not 😊. But yes, having done a part redesign and then cut the die I was happy how this part turned out... Martin
Jess, Its an old machine from another foundry I was just lucky enough to get my hands on it when they threw several away. I have modified it quite a bit and while its not perfect it does the job well enough. Both my customer and I are very happy with the parts made... Martin
First time i've seen die casting, Those coatings really do make all the difference, My (extremely limited) experiences with molten aluminium and steel led me to belive it would be a pig to do! and of course that's a fantastic setup! Thanks for sharing!
Leon, You have hit the nail right on the head! Without the coatings the job would be neigh on impossible - you MUST use coatings then its easy... Martin
Old iron, Its also a process that can produce some of the best quality castings available a reflection of the fast cooling rates. And once you get into it - it isn't rocket science.. Martin
The funnel core directs all the flow through the filter and creates a smaller sprue, once the feeder is full it does not matter any more so it can be removed and the feeder topped up? Folks keep referring to carburetors for this throttle body? Great video, I think this really gives the best view of what is going on, possibly because it is such a big die.
Smallcnc, The job of the funnel core is indeed to direct the metal through the filter. The filter breaks the fall off the metal into two much lower falls, this greatly reduces the turbulence of the fill and eliminates the bubbles like the one I showed in part 1 in a throttle body that had been made without the filter (or funnel) It is amazing the difference this reduction in metal fall makes - from nothing but rejects to nothing but good castings. They are throttle bodies to be used with injection systems and thus are not carburettors... Martin
Oval, The first one of these I cast in this die was impressive but now - Meh - been there done that. Once you get into this process its not all that difficult...Martin
G’day Martin, I thought your tradesman assistant wasn’t going to do anything but then he steps in as the press operator. Very interesting video and helps to understand how it’s made and where the expense goes to. With the onset of fuel injection I presume these throttle bodies would be still needed for the Hot Rod scene. Cheers Peter
PGS, My assistant is needed because I can not at the moment stand there all day and do the casting -I do not have the endurance. However his experience is limited so I have to do a lot of the setting up work. Yes, these throttle bodies are used with fuel injection - into the manifold I think...Martin
Goodness gracious - that is a really complex rig (die) for a complex part I guess - surprised about the mechanism, hydraulics and all - I worry and lament that other than for craftsman such as your self posting this to u/tube for posterity we would otherwise lose these skills completely - I suppose in the "old" days you would have passed this on to an apprentice or two - many thanks for your efforts on behalf of the manufacturing industry (what's left of it)
Gez, Sadly the old days are gone! There used to be a very good foundry trades school in Melbourne its now closed down apprenticeships in the foundry arts are gone. Most of the remaining practitioners are like me, old and either retiring or should be its hard to hump sand or dies around at 74. I hope at least that the videos will remain on YT for posterity but I have kept copies anyway plus all the original footage. Sadly large scale manufacturing is gone but there is a surprising amount of small scale stuff going on.... Martin
this really is a fantastic piece of workmanship, well worthy of praisfull comment. It looks a very compplex array of machinary you are using. I presume you made the jigs and all the hydrolic machinary yourself
hrxy1. Thank you for your wonderful comments. I just happened to be in the right place at the right time to pick that machine up but I have had to do a lot of mods to it. I did both design and make the die myself, I bought an older CNC mill to do this an then spent a year getting the mil to work, learning how to use it and then cutting the die... Martin
@@olfoundryman8418 ty for your comprehensive reply, also read nerd usa comments too. Now here is strange request. When you take abath or do the washing up and pull the plug. Which direction does the water swirl? i ve already asked geoff croker in NZ. But would like to know if its the same inAUS, ty.
Phil, Knowing me I probably got your email and never got around to replying. I have had a bit of a torrid time of late - surgery and trying to recover and its all been a bit of a blur so sorry I missed it but try again to olfoundryman@gmail.com - give me another hoy here if I do not reply in a few days.... Martin
Amalgamous, Counter intuitively perhaps the aluminium will not stick to anything. You v=can get a little soldering where the die pulls off the aluminium and sort of smears it a bit but but that's about all... Martin
Now this is cool. I have visions of how I can apply this die technique to loudspeaker frames. I should stop watching your videos to many ideas ( not bloody likely to happen ). It is a pretty advanced casting method. But you are breaking it down into bite sized pieces. Perhaps a covering of the questions after the video series? Mark ( wannabe apprentice )
Mark, Long way to travel to work! Its not really that advanced its different but not that much from sand casting only a few easily learnt considerations to keep in mind (like getting the air out, which is automatic with a porous sand mould but requires special attention with a non porous metal mould. There is a sort of follow up video on the books planned for a week or two away. It will look at the variety of gravity die castings I have done over the years and some of the (less com-plicated0 machines used to hold the dies,. Hopefully you will find this interesting... Martin
@@olfoundryman8418 _"There is a sort of follow up video on the books planned for a week or two away. It will look at the variety of gravity die castings I have done over the years and some of the less complicated machines used to hold the dies"_ Hi Martin. This series on the four barrel throttle body was fantastic. Do you think you still might be able to show some of the less complicated die casting setups you have?
@@rudycandu1633, Oh my, how time flies when things are not exactly going one's way as much as one might like they were. You are right, I did promise that follow up. Indeed I videoed it all and I have about 1 hour or so of raw footage that I struggled through the shooting of. Some of it is not as good as I would like but it is now very difficult for me to do any reshooting - I had enough trouble with the first take and now many of the things I showed have been given to another foundry in order to keep my (now ex) customers supplied as I can no longer do the work myself, so reshooting is not possible - even if I were well enough. However, in response to your comment I have begun to view the footage and to start to put it together in some sort of video. It will take a while and I have no idea as yet how good or bad it will be but I think I can get something out of it - maybe - possibly . So, stay tuned. .... Martin
@@olfoundryman8418 Don't stress yourself of what could have been. Anything you come up with will be more than good enough. I think that your thoughts, ideas, history are things that we can learn from. Your posts are much appreciated.
Enjoy your videos, when you was spraying the coating on the lower half I think you said you had a flame torch to keep it hot for spraying to get the coat to flash dry. But I was curious for the rest of the day do you have that lower burner on to keep the mold from getting too cool so the metal will solidify evenly?
Brad, All burners are off while casting - with this job at least! The lower half of the die - i.e. the thick plate that the bottom burner is used to heat up does run somewhat colder than the rest of the die but this is a good thing as it encourages solidification progressively from this plate upwards into the big feeder. We don't really want solidification to be too even - we need it to be progressive towards the feeder with the latter solidifying last. I have seen dies where it was necessary to heat part of the die all through the casting run (never had to do it myself) but I have used a few dies where it was necessary to water cool parts of the die either to speed up production or the get a casting without shrinkage... Martin
Incredible, very interesting to see all the dyes fit together. Would it be the customers job to make those or would you make them and the crazy machine too? Very cool
Julian, Making the dies😏 is sometimes organised by the customer but mostly I make the ones I use including this one. I bought an older CNC mill and spent a year getting it running , learning how to use it , and cutting this die - all very much a labour of love. 😊As for the "crazy machine" it and another several like it used to make brake parts and when the decision to scrap the machine was made I grabbed it. I have modified it considerably converting it from air to oil and adding the top cylinder, about another years worth... Martin
Just curious if you also do the final machine work or just the raw castings part. Also, who makes your dies? Do you do them yourself? Informative video as always
Nerd, No, my customer does all the machining of the castings. However I did make the dies - its the only way to get them at a reasonable cost 😊… Martin
@@olfoundryman8418 Thank you for clarifying. I know having dies made can be rather expensive for even relatively simple dies which is why I was curious. A set of dies like you have here in the states would easily run $10k+.
Nerd, Yes , that sounds about right for out here too. But with a lathe, a mill preferably CNC, and some continuously cast iron bar stock it is amazing what you can do for yourself. It might take you a while though so you have to be pretty generous with your time - I have cut quite a few dies and never made more than a handful of castings in them so it can easily turn to a bit of a loss and you just have to be prepared to wear that… Martin
@@olfoundryman8418 That is exactly why I was curious because it did not seem economical to do die casting for the number of parts you did, but if you make your own dies it cuts your costs by a fair margin. At a company I used to work for we did not even consider castings for simpler parts than you just did unless it was over a few thousand parts. It just was not economical due to the cost of the dies.
@@olfoundryman8418 Had to make a comment here - your reference to continuously cast Iron bar stock - I don't know if you knew of a company called Flowcast in coburg - top company was making amazingly good continuously cast bar (bronze, cast iron etc) - 90 percent of their product was exported overseas - got bought out and shut down a year ago by another SA foundry because the land they sat on became so valuable in inner Melb - Indian engineer was managing director - he was heartbroken - just had to mention them as I much admired their operation.
sorry by the cuestion, the dies are from cast iron? who many pieces can you do in the life of the die?, (with this set up that you have), very cool, im from argentina, i want to do that for my motorcycle, i study for mechanical engineer
IDMA, The dies are from cast Iron, I buy it as continuously cast bar available in a large range of sizes and cut to length. I have never worn a die out so I don't really know but I believe that the life is in the tens of thousands of castings, certainly with some dies I have had many thousands of castings. However some parts of a die - small core pieces for example - may need to be replaced more often. Greetings from Australia... Martin
10.54. .....Martin, .....Martin.........MARTIN. "I have made you a cup of tea. Stop playing in the shed. Come in immediately and drink it up." MARTIN....!
aub, The good tea lady appreciates the income received 😊 for this effort so she is very forthcoming with delivery of the tea - for me, and the coffee - for the assistant just about every hour on the hour...I am thinking about a tea urn in the shed though … Martin
Entire point of funnel core is keeping metal influx through filter, and holding filter in place, right? Different design of mould could do without it in case of this part?
Kuba, Yes, funnel is just to direct metal through filter, Filter is there to break the fall of the metal into two parts thus reducing turbulence. No doubt you could redesign this die to do the part differently but this was the easiest way I could come up with to do it. I would be fairly certain that just about every foundry would find their own way of casting this part. Initially I made the part without the funnel and filter but turbulence trapped air bubbles in the casting which ruined it - no such problems with the filter and funnel in use. If the funnel was steel I think there would be too much trouble with metal solidifying on it before it was removed you can see that the metal around the outside of the sand funnel has already started to go solid before it is removed with steel it would be worse and if the steel stayed hot enough to prevent this it would slowly dissolve in the aluminium alloy and contaminate it. Perhaps some sort of ceramic funnel might work though. Other than the base plate the mould is grey cast iron not steel... Martin
Rupert, The sprayed surface is stripped at the end of every day's casting and reapplied each morning before that days casting. the spray on the cores which tends to wear off is retouched with a quick lubricating spray a few times a day. A few other parts of the die may get a very light touch up occasionally through the day too... Martin
Mark, Yes, I understand that they do get their jollies 😀. They aren't actually carbies just throttle bodies used with in manifold or in cylinder injection - not sure which but manifold I think… Martin
![ลองสุ่มไอโฟน 990 โกงมั้ย? [ โกงมั้ยครับ ep.101 ] | DOM](http://i.ytimg.com/vi/bfsWe0j492k/mqdefault.jpg)
Your production keeps getting better and better. The cut-in explanations are much appreciated!
This is interesting stuff!
Phreadrick, I am glad that you find it interesting... Martin
also the vid production is excellent. Showing the text and reading it sllowly is an excellent idea, gives the mind time to absorb whats being done.
Fascinating! Might I suggest, putting a marble or steel ball in your spray gun cups to agitate the solids / powder into a consistent suspension.
George, Yes, I guess I could do that but I find that a quick up/down shake just before spraying seems to suffice - any doubt and I twitch the trigger with my (gloved) finger over the nozzle of the gun, the air blows back through the can and agitates the spray very well indeed.... Martin
Good to see you posting again Martin. There is quite a bit to setting up this die system, but once set up you can knock them out.
Mark, Yes, to a certain extent. The die has to be stripped and cleaned every days run if the part appearance is to be maintained and it takes a day or two (or three!) to do this and then re set up. Still at 60 per days casting it sure beats 6 per day as sand castings like I used to do 😊… Martin
Beauty !
How a Craftsman makes a four barrel throttle body instead of of a three eyed throstle grotty.
Awesome casting Marty !
Much Skill. So Casty.
aga Hmm, "casty" I will have to refer that to our resident lexicographer Perry over at Swdweeb. Perhaps he will class it with "Casted" a term he remonstrated against just the other day, see here th-cam.com/video/FM0r0sMCDEo/w-d-xo.html
Perhaps not 😊. But yes, having done a part redesign and then cut the die I was happy how this part turned out... Martin
Fascinating die setup. Thank you for sharing every step Martin. Beautiful pieces
Jess, Its an old machine from another foundry I was just lucky enough to get my hands on it when they threw several away. I have modified it quite a bit and while its not perfect it does the job well enough. Both my customer and I are very happy with the parts made... Martin
First time i've seen die casting, Those coatings really do make all the difference, My (extremely limited) experiences with molten aluminium and steel led me to belive it would be a pig to do! and of course that's a fantastic setup! Thanks for sharing!
Leon, You have hit the nail right on the head! Without the coatings the job would be neigh on impossible - you MUST use coatings then its easy... Martin
Great to see your post! Hope you’re feeling better!
Isaac, Eh, not as good as I would like (hence the assistant) but slowly improving... Martin
Olfoundryman get better soon friend. Love seeing updates and I always learn a ton with your videos. Thoughts and prayers for you.
Very interesting process Martin keep up the good work. I always learn something watching you.
Old iron, Its also a process that can produce some of the best quality castings available a reflection of the fast cooling rates. And once you get into it - it isn't rocket science.. Martin
That was fun to watch. Hope you're feeling better.
Craig, A little thanks... martinm
The funnel core directs all the flow through the filter and creates a smaller sprue, once the feeder is full it does not matter any more so it can be removed and the feeder topped up?
Folks keep referring to carburetors for this throttle body?
Great video, I think this really gives the best view of what is going on, possibly because it is such a big die.
Smallcnc, The job of the funnel core is indeed to direct the metal through the filter. The filter breaks the fall off the metal into two much lower falls, this greatly reduces the turbulence of the fill and eliminates the bubbles like the one I showed in part 1 in a throttle body that had been made without the filter (or funnel) It is amazing the difference this reduction in metal fall makes - from nothing but rejects to nothing but good castings. They are throttle bodies to be used with injection systems and thus are not carburettors... Martin
Very nice finish in those castings, thank you for sharing.
Ray, My pleasure... martin
Wow, sweet pours, top knotch results. Amazing set up
Tyler, Thank you - it does work well, and my customer is very happy and that's what counts I guess.. Martin
Very nice looking part and a very interesting series, many thanks.
Jason, My pleasure - I am glad that you find the series interesting... Martin
Totally awesome skills on display yet again Martin, thanks for sharing!
JB, Thanks mate -still not made it over to these parts yet?... Martin
Beautiful and outstanding work! Thank you for sharing.
Glen, Sharing is very much my pleasure... Martin
Great video, very informative. Could you add some photos of the casting showing the shape of the sprue please.
Gaye, Will include photos in the follow up... Martin
WOW 😲 Now that is impressive. Well done 👍😁
Oval, The first one of these I cast in this die was impressive but now - Meh - been there done that. Once you get into this process its not all that difficult...Martin
Absolutely fascinating! Very impressive work as always.
creast, Glad that you liked it... Martin
Fascinating and perfectly explained
gasfrers, You do me great honour sir, and I could take comments like yours all day 😊 Thank you... Martin
Always love your videos!
Marty, I can take comments like this all day 😀… Martin
G’day Martin, I thought your tradesman assistant wasn’t going to do anything but then he steps in as the press operator. Very interesting video and helps to understand how it’s made and where the expense goes to. With the onset of fuel injection I presume these throttle bodies would be still needed for the Hot Rod scene. Cheers
Peter
PGS, My assistant is needed because I can not at the moment stand there all day and do the casting -I do not have the endurance. However his experience is limited so I have to do a lot of the setting up work. Yes, these throttle bodies are used with fuel injection - into the manifold I think...Martin
@@olfoundryman8418 Respect to you and your assistant for sharing this wonderful craft with us here on TH-cam.
Freakin' fascinating that hydraulic mold jig.
Soda, Yes, I was just lucky to pick it up, had to do a fair bit of updating work though, but have now used it for many thousands on castings.. Martin
Beautiful work sir!
Rengan, Thank you - I was very happy with the way it turned out....Martin
Goodness gracious - that is a really complex rig (die) for a complex part I guess - surprised about the mechanism, hydraulics and all - I worry and lament that other than for craftsman such as your self posting this to u/tube for posterity we would otherwise lose these skills completely - I suppose in the "old" days you would have passed this on to an apprentice or two - many thanks for your efforts on behalf of the manufacturing industry (what's left of it)
Gez, Sadly the old days are gone! There used to be a very good foundry trades school in Melbourne its now closed down apprenticeships in the foundry arts are gone. Most of the remaining practitioners are like me, old and either retiring or should be its hard to hump sand or dies around at 74. I hope at least that the videos will remain on YT for posterity but I have kept copies anyway plus all the original footage. Sadly large scale manufacturing is gone but there is a surprising amount of small scale stuff going on.... Martin
Very nice work.
Volcker, Thank you... martin
very cool!!! Thanks for sharing!
rudd, My pleasure... Martin
Thank you. Very informative
Mark, My pleasure... Martin
this really is a fantastic piece of workmanship, well worthy of praisfull comment. It looks a very compplex array of machinary you are using. I presume you made the jigs and all the hydrolic machinary yourself
hrxy1. Thank you for your wonderful comments. I just happened to be in the right place at the right time to pick that machine up but I have had to do a lot of mods to it. I did both design and make the die myself, I bought an older CNC mill to do this an then spent a year getting the mil to work, learning how to use it and then cutting the die... Martin
@@olfoundryman8418 ty for your comprehensive reply, also read nerd usa comments too. Now here is strange request. When you take abath or do the washing up and pull the plug. Which direction does the water swirl? i ve already asked geoff croker in NZ. But would like to know if its the same inAUS, ty.
Fascinating!
Nate, Thank you... Martin
That's impressive work!
Phil, Thank you.... Martin
@@olfoundryman8418 Hi Martin, I tried to contact you a few months ago, not sure if you received my email?
Phil, Knowing me I probably got your email and never got around to replying. I have had a bit of a torrid time of late - surgery and trying to recover and its all been a bit of a blur so sorry I missed it but try again to olfoundryman@gmail.com - give me another hoy here if I do not reply in a few days.... Martin
@@olfoundryman8418 Hi Martin, I hope your health is improving!.....I've resent you an email. Thanks, Phil.
I like watching true Craftsmen.
Mature, Thank you....Martin
Amazing! I think if I attempted that I would have aluminum fused to everything.
Amalgamous, Counter intuitively perhaps the aluminium will not stick to anything. You v=can get a little soldering where the die pulls off the aluminium and sort of smears it a bit but but that's about all... Martin
Now this is cool. I have visions of how I can apply this die technique to loudspeaker frames. I should stop watching your videos to many ideas ( not bloody likely to happen ).
It is a pretty advanced casting method. But you are breaking it down into bite sized pieces. Perhaps a covering of the questions after the video series?
Mark ( wannabe apprentice )
Mark, Long way to travel to work! Its not really that advanced its different but not that much from sand casting only a few easily learnt considerations to keep in mind (like getting the air out, which is automatic with a porous sand mould but requires special attention with a non porous metal mould. There is a sort of follow up video on the books planned for a week or two away. It will look at the variety of gravity die castings I have done over the years and some of the (less com-plicated0 machines used to hold the dies,. Hopefully you will find this interesting... Martin
@@olfoundryman8418 _"There is a sort of follow up video on the books planned for a week or two away. It will look at the variety of gravity die castings I have done over the years and some of the less complicated machines used to hold the dies"_
Hi Martin. This series on the four barrel throttle body was fantastic. Do you think you still might be able to show some of the less complicated die casting setups you have?
@@rudycandu1633, Oh my, how time flies when things are not exactly going one's way as much as one might like they were. You are right, I did promise that follow up. Indeed I videoed it all and I have about 1 hour or so of raw footage that I struggled through the shooting of. Some of it is not as good as I would like but it is now very difficult for me to do any reshooting - I had enough trouble with the first take and now many of the things I showed have been given to another foundry in order to keep my (now ex) customers supplied as I can no longer do the work myself, so reshooting is not possible - even if I were well enough.
However, in response to your comment I have begun to view the footage and to start to put it together in some sort of video. It will take a while and I have no idea as yet how good or bad it will be but I think I can get something out of it - maybe - possibly . So, stay tuned. .... Martin
@@olfoundryman8418 Don't stress yourself of what could have been. Anything you come up with will be more than good enough.
I think that your thoughts, ideas, history are things that we can learn from. Your posts are much appreciated.
Thank you Sir!.
Mahando, My pleasure... Martin
Enjoy your videos, when you was spraying the coating on the lower half I think you said you had a flame torch to keep it hot for spraying to get the coat to flash dry. But I was curious for the rest of the day do you have that lower burner on to keep the mold from getting too cool so the metal will solidify evenly?
Brad, All burners are off while casting - with this job at least! The lower half of the die - i.e. the thick plate that the bottom burner is used to heat up does run somewhat colder than the rest of the die but this is a good thing as it encourages solidification progressively from this plate upwards into the big feeder. We don't really want solidification to be too even - we need it to be progressive towards the feeder with the latter solidifying last. I have seen dies where it was necessary to heat part of the die all through the casting run (never had to do it myself) but I have used a few dies where it was necessary to water cool parts of the die either to speed up production or the get a casting without shrinkage... Martin
Incredible, very interesting to see all the dyes fit together. Would it be the customers job to make those or would you make them and the crazy machine too? Very cool
Julian, Making the dies😏 is sometimes organised by the customer but mostly I make the ones I use including this one. I bought an older CNC mill and spent a year getting it running , learning how to use it , and cutting this die - all very much a labour of love. 😊As for the "crazy machine" it and another several like it used to make brake parts and when the decision to scrap the machine was made I grabbed it. I have modified it considerably converting it from air to oil and adding the top cylinder, about another years worth... Martin
@@olfoundryman8418 ahhh thanks so much effort! very interesting cheers
Just curious if you also do the final machine work or just the raw castings part. Also, who makes your dies? Do you do them yourself? Informative video as always
Nerd, No, my customer does all the machining of the castings. However I did make the dies - its the only way to get them at a reasonable cost 😊… Martin
@@olfoundryman8418 Thank you for clarifying. I know having dies made can be rather expensive for even relatively simple dies which is why I was curious. A set of dies like you have here in the states would easily run $10k+.
Nerd, Yes , that sounds about right for out here too. But with a lathe, a mill preferably CNC, and some continuously cast iron bar stock it is amazing what you can do for yourself. It might take you a while though so you have to be pretty generous with your time - I have cut quite a few dies and never made more than a handful of castings in them so it can easily turn to a bit of a loss and you just have to be prepared to wear that… Martin
@@olfoundryman8418 That is exactly why I was curious because it did not seem economical to do die casting for the number of parts you did, but if you make your own dies it cuts your costs by a fair margin. At a company I used to work for we did not even consider castings for simpler parts than you just did unless it was over a few thousand parts. It just was not economical due to the cost of the dies.
@@olfoundryman8418 Had to make a comment here - your reference to continuously cast Iron bar stock - I don't know if you knew of a company called Flowcast in coburg - top company was making amazingly good continuously cast bar (bronze, cast iron etc) - 90 percent of their product was exported overseas - got bought out and shut down a year ago by another SA foundry because the land they sat on became so valuable in inner Melb - Indian engineer was managing director - he was heartbroken - just had to mention them as I much admired their operation.
You are the man. Thank you.
Jerred, Thank you for saying so... Martin
sorry by the cuestion, the dies are from cast iron? who many pieces can you do in the life of the die?, (with this set up that you have), very cool, im from argentina, i want to do that for my motorcycle, i study for mechanical engineer
IDMA, The dies are from cast Iron, I buy it as continuously cast bar available in a large range of sizes and cut to length. I have never worn a die out so I don't really know but I believe that the life is in the tens of thousands of castings, certainly with some dies I have had many thousands of castings. However some parts of a die - small core pieces for example - may need to be replaced more often. Greetings from Australia... Martin
Awesome!
Wikus, Thank you... Martin
Nice job - I was wondering where parts like this come from now that they aren't mass produced any more by the automotive industry.
Edward, I think the world is full of small people like me quietly beavering away in sheds out the back making small runs of stuff like this... Martin
That’s cool.
Jason, Glad that you liked it… It certainly is a job for "cool" weather 😊 Martin
10.54. .....Martin, .....Martin.........MARTIN.
"I have made you a cup of tea. Stop playing in the shed. Come in immediately and drink it up."
MARTIN....!
aub, The good tea lady appreciates the income received 😊 for this effort so she is very forthcoming with delivery of the tea - for me, and the coffee - for the assistant just about every hour on the hour...I am thinking about a tea urn in the shed though … Martin
Hahahahahah. I love it. Both the video and this comment.
@@olfoundryman8418 Not a brew urn, mate, get a fridge.
aub, Um, already have a fridge 😄. Use it to keep my mouldable rubber cold...😏.. Martin
Entire point of funnel core is keeping metal influx through filter, and holding filter in place, right? Different design of mould could do without it in case of this part?
And if funell is removed anyway, why must it be single use sand core instead of reusable steel like rest of mold?
Kuba, Yes, funnel is just to direct metal through filter, Filter is there to break the fall of the metal into two parts thus reducing turbulence. No doubt you could redesign this die to do the part differently but this was the easiest way I could come up with to do it. I would be fairly certain that just about every foundry would find their own way of casting this part. Initially I made the part without the funnel and filter but turbulence trapped air bubbles in the casting which ruined it - no such problems with the filter and funnel in use. If the funnel was steel I think there would be too much trouble with metal solidifying on it before it was removed you can see that the metal around the outside of the sand funnel has already started to go solid before it is removed with steel it would be worse and if the steel stayed hot enough to prevent this it would slowly dissolve in the aluminium alloy and contaminate it. Perhaps some sort of ceramic funnel might work though. Other than the base plate the mould is grey cast iron not steel... Martin
@@olfoundryman8418 thanks for answer
Great stuff. Do you have to touch up the sprayed surface. Thanks for sharing
Rupert, The sprayed surface is stripped at the end of every day's casting and reapplied each morning before that days casting. the spray on the cores which tends to wear off is retouched with a quick lubricating spray a few times a day. A few other parts of the die may get a very light touch up occasionally through the day too... Martin
Thanks. Look forward to your next video
Any particular engine is this four barrel throttle body designed for?
Mark, As far as I know lots of V8s... Martin
Going to be some very happy Rev Heads when they get their hands on these 4 Barrel Carbies. Vroom Vroom.
Mark, Yes, I understand that they do get their jollies 😀. They aren't actually carbies just throttle bodies used with in manifold or in cylinder injection - not sure which but manifold I think… Martin
Olfoundryman probably TBI or throttle body injection.
Love your videos. Did you make the die machine?
M K, No, I was able to pick it up from where I worked at the time. I have made a lot of mods to it though... Martin
Спасибо
Maxim, Thank you for taking the time to say so... Martin
Mastery.
Edgar, Its just practice.. Martin