Good to see you back Martin, hope your doing well.

@olfoundryman8418

4 жыл бұрын

Donnie, Sadly not as well as I would like but still standing ,thanks for thinking of me... Martin

Been watching all your videos. I know for myself it if you had them on DVDs I would buy them all. Have always been a big fan of old skills that kind of knowledge is invaluable and needs to be passed on, especially the reasoning skills that can't be in book form. We appreciate the time and effort of your work. Thank you.

@olfoundryman8418

4 жыл бұрын

Brad, Thank you for your comment - I could read comments like that all day.😊 I must admit that I have never thought of the DVD route - they are all still up on YT anyway but I guess if I ever have to take them down then DVD quite possibly. I have been asked to write a book many times but I am no author and an even worse typist.... Martin

Thanks for the tuition Martin. Looking forward to seeing the masterclass in how to mould these. Regards, Mark

@olfoundryman8418

4 жыл бұрын

Mark, It will all unfold in time, but it will be quite a few episodes as we hope to cover it quite fully so that those wishing to follow suit and make there own can do so easily and without being left in the dark ha;lf way through... Martin

I’m from Saskatoon Saskatchewan in between Man. and B.C. . I farmed for 40 years and now in retirement want to try some casting. Your talent and knowledge comes from many years of experience I wish I could come and help you for a short time hopefully some would rib off but the Distance dictates that though. I hope that we can look forward to many more tutorials from you but there does come a time where retirement looks pretty good. Keith

@olfoundryman8418

4 жыл бұрын

Keith, Just hop on a plane (when they fly again) we have got a spare bed 😊 I could use some help right now - I made 4 moulds today and I am worn out, I used to do 20 bigger ones in a day and pour them as well - sigh, old age is a crock! However I will keep going as long as I can -if a little slowly.... Martin

A fascinating insight and your years of hard-won experience shine through! Thanks for taking the trouble to place this excellent resource in the public domain.

@olfoundryman8418

4 жыл бұрын

Steve, My pleasure... Martin

I have files. They're now dull files, I made them myself. They were sharp files when I bought them. All joking aside, I'm going to make these. Thanks for sharing your wealth of information.

@olfoundryman8418

4 жыл бұрын

Amalgamous, Yeah, I have a draw full of those files too.😊 I think you will like the boxes when you are done making them …. Martin

Glad to see you back Martin.

@olfoundryman8418

4 жыл бұрын

Dick, always in the background just a little slow these days 😊…. Martin

Thanks for doing this. You are making a valuable contribution to the base of knowledge about foundry work.

@olfoundryman8418

4 жыл бұрын

Tom, Tom, That's what I am on about and its nice when people indicate that I might be succeeding Thank you... Martin

Well worth the wait Martin! As always, nothing less than brilliant

@olfoundryman8418

4 жыл бұрын

Luddite, Thank you... Martin

Love your videos.

@olfoundryman8418

4 жыл бұрын

Mature, Thank you for saying so... Martin

Thank you very much! Looking forward to the links and STL files, I will definitely give this a go.

@olfoundryman8418

4 жыл бұрын

Wet, Shortly, thanks to my good friend Nigel from "smallcnclathes" the files for the box sides will be available as either the STL for 3D printing or a PDF drawing with measurements for the wood whittlers and a STEP file for cad/cam work Contact me on "olfoundryman@gmail.com" if you want any or all of these and when available I will send them to you.... Martin

Excellent video Martin. Very nice box design.

@olfoundryman8418

4 жыл бұрын

Jess, Yes, we think so too 😊 ... Martin

Great video and I am looking forward to the next one. Thank you for sharing sir Joe

@OldIronShops

4 жыл бұрын

Fancy seeing you here joe

@MyHeap

4 жыл бұрын

@@OldIronShops I get around. Hahaha

@OldIronShops

4 жыл бұрын

@@MyHeap lol don't we all.

@olfoundryman8418

4 жыл бұрын

Joe, My pleasure, and I am glad that you all "get around".... Martin

@MyHeap

4 жыл бұрын

@@olfoundryman8418 started to look like a creator gathering at your channel. Oops. Haha

Gracias por transmitir tu experiencia Martin, siempre esperamos más! Un abrazo desde Argentina.

@olfoundryman8418

4 жыл бұрын

Daniel, My pleasure and a big hug back from Australia… M

Ah Obiwan we wait patiently to learn from the Master. As always great to see your work.

@olfoundryman8418

4 жыл бұрын

Fire, Don't tread on the grasshopper at your feet .😊.. Martin

Woke up at 3:50 am. This sucks. Look at phone see you put a video up. Awesome!!!!!!!

@olfoundryman8418

4 жыл бұрын

Eleventeen, Just goes to show "the early bird gets the worm".... Martin

Thanks for the clear explanations Martin. I'll make up a batch of patterns the old fashioned way. But all your tips will be listened to and remembered for sure. Looking forward to the continuation of the series. These will be keepers to be sure. This can easily be scaled up if needed as you have discussed all the design principles. Going to be an interesting bit of work ahead!

@olfoundryman8418

4 жыл бұрын

Mark, I was sure I had allready replied to you but I can't find it! How is the Canadian winter we have had one hot summer and now its very humid (unusual for us!) My good friend Nigel is part way through preparing a series of files for those wishing to make their own boxes. The series includes the necessary STL files for the 3D printing fraternity STEP files for the CAD fraternity and then for the tradirionalists a PDF dimensioned drawing. If you want any (or all) of these contact me on "olfoundryman@gmail.com" and wheh they are readsy I will send them to you..... Martin

Very informative as always, love your videos mate, keep em coming! Greetings from across the ditch!

@olfoundryman8418

4 жыл бұрын

Wikus, Just across the ditch - come for a visit.😊 Part 2 in a week or so.... Martin

@wikusdp

4 жыл бұрын

@@olfoundryman8418 I might just take you up on your offer mate.

@olfoundryman8418

4 жыл бұрын

Wikus, Where the bloody hell are you mate? I have had the kettle on for days... Martin

@wikusdp

4 жыл бұрын

@@olfoundryman8418 if only I can get away from work, you know what they say "there ain't no rest for the wicked" lol. Hope your health has improved mate.

Thankyou for the inspiration

@olfoundryman8418

4 жыл бұрын

Charlie, I hope that it is of use.... Martin

Thank you very much for passing on your experience to the community. I would very much appreciate like to cast my own flasks based on your designs.

@olfoundryman8418

4 жыл бұрын

David, Go for it - if youwish the STLfiles or the STEP files of a PDF drawing come to me on "olfoundryman@gmail.com" and when they are ready (still in preperation) I will forward them to you.... Martin

G’day Martin I’ll have to make some boxes, these look simple enough but I’ll have to do them in wood as I don’t have a 3D printer. Thanks for sharing your experience and knowledge Cheers Peter

@markfryer9880

4 жыл бұрын

Nothing wrong with the Old School methods if that is what is available to you.

@olfoundryman8418

4 жыл бұрын

PGS, MY good friend Nigel from smallcnclathes is preparing not only the STL files for the 3D printing fraternity but also a PDF dimensioned drawing for those who wish to whittle the patterns out of wood and also a STEP file for those with CNC routers and the like. If you come to me on "olfoundryman@gmail.com" with an email address that I can send you choice of files to I will put you on the list for when they are ready..... Martin

Great video. In all my 3D printed patterns I always put a small fillet on all the edges. It makes a huge difference. After seing your boxes a year and a bit ago I design some boxes very similar, but using cut down Aluminium C channel and screwing in the pin guides. If KZread let me post photos I would have put some screenshots up here. Look forward to the next video

@olfoundryman8418

4 жыл бұрын

Macwhirter. I too had thought of the extruded channel method and I may yet do an alternative method of making boxes using it, there are some channels available that require only a little cutting down and use 3 mm section aluminium. However I think the all cast design has some advantages as will (I hope )😊 become apparent as this video series develops. We did put fillets radii etc wherever it was possible and as the desigh iterated through a few versions more and more got added!. I would love to see your photos so come to me at "olfoundryman@gmail.com" and I will give you an email address that you can send them to. Next video quite soon...Martin

Battle of the mold boxes lol, it's all good to see, My work flasks are welded, where as my home one's are wood (yes yes I know I know, but they still do the job after a fair few years). I really should make myself some. anyway's ,I again await your next episode Martin PS about time Nigel put in an appearance!

@olfoundryman8418

4 жыл бұрын

Andy, I still have a wooden box made about 1965 its still useable just a little burnt is all 😏. Nigel is currently working on a video and from what I have seen it is quite an interesting job should be out soon he tells me.... Martin

Thanks Martin!

@olfoundryman8418

4 жыл бұрын

Jaap, You are welcome.... Martin

Very nice. I'll have to consider these when I get closer to getting a foundry set up.

@olfoundryman8418

4 жыл бұрын

Ask , Hang on weren't you planning on getting there this year? 😊 or have I got it wrong... Martin

@askquestionstrythings

4 жыл бұрын

@@olfoundryman8418 I'm probably still at least a year out depending on finding a post graduation job and planning a move.

@olfoundryman8418

4 жыл бұрын

Ask, Ah the delightful pleasures of hawking yourself around industry - boy, am I glad those demeaning days are over for me... Martin

@askquestionstrythings

4 жыл бұрын

@@olfoundryman8418 I look forward to getting this phase over and done with.

@olfoundryman8418

4 жыл бұрын

Ask, Sadly, its only over when you retire 😏 and Iguess that's a long way off - you could of course set up on your own but then you never retire😊... Martin

I can hardly wait for the STL files!

@olfoundryman8418

4 жыл бұрын

Wayne, They should be ready after part 2 and with part 3 part2 is about a week away part 3 - Eh - well, soon is al I can say for now!.. Martin

@WayneEarls

4 жыл бұрын

@@olfoundryman8418 Thanks Martin. Take care.

Great Sunday morning viewing. The external mitres is a great idea. It,s funny it was something i was going to mention in a comment. ( just as well i waited, LOL ) I Love the mention (s) for Nigel,s channel ( smallcnclathes ) Another great channel to watch. I am sure his view count will go up by double now.

@olfoundryman8418

4 жыл бұрын

Semi, Nigel has been of the greatest help in this endeavour - without him It would not have happened. I sure hope his view and sub count go up lots he deserves it - would not mind if mine went up too 😊…. Martin

@weldmachine

4 жыл бұрын

@@olfoundryman8418 Hey Martin. Funny you mention the View and Sub count. Something most of us posting on KZread think about more than we should. Me included ?? I guess it has something to do with justification for making videos. We prefer to act like it doesn't matter. But the truth is. If people didn't watch. There would not be much point in making and posting videos. Us Aussies don't get much of a showing when it comes to KZread. It seems videos posted in the US. Especially attract a better showing in the recommendations. But for me and I am guessing yourself. We post for our own enjoyment. There is something forefilling about sharing information. That makes us want to do more videos even if we don't fair well on the grand scheme of things.

@olfoundryman8418

4 жыл бұрын

Semi, Nigel and I frequently muse over the apparent - ahem - variability of YT results we have fo9r example people who specialize in picking up any old scrap and melting it down into ingots which they then polish - we call it turd polishing. But these people get nearly 2000 new subs every day (good grief!) I get maybe 4 per day - they have millions of views and earn a fortune from the add revenue. Oddly enough the main one is in Australia! At times it is very disheartening and one does sometimes wonder "why bother" but I guess we do keep going for just as you say there is something forefilling about it, maybe it just feeds our egos but whatever, we keep at it with perhaps an occasional pause while we get our enthusiasm back.… Martin

Well done and of great value. Will save alot of time and wasted effort. Had thought of the 45 degree corners, but ridges to hold the sand, none on the outside, etc. would very like taken time to find out by time, trials and failures. I'm going to University of You Tube and for casting, here's my favorite teacher! A+

@olfoundryman8418

4 жыл бұрын

puttesla. I could take comments like this all day - thank you. And yes it can take a while to find out - took me over 50 years 😊 ... Martin

Wahoo Martin is back!! Hope all is well with ya mate!

@olfoundryman8418

4 жыл бұрын

Net, Thanks for the thought - not as well as I would like but still standing.... Martin

Good design Martin,if I didn't have enough molding boxes I'd make a couple but would make the patterns from wood [not into 3d printing I'm afraid!] hmmn might even make a couple as I like the design. Graham.

@olfoundryman8418

4 жыл бұрын

Graham, As the design takes shape over this video series I think you will be more impressed and even more inclined to make some for yourself (not that Iam biased of course 😊 ) Shortly, thanks to my good friend Nigel from "smallcnclathes" the files for the box sides will be available as either the STL for 3D printing or a PDF drawing with measurements for the wood whittlers and a STEP file for cad/cam work Contact me on "olfoundryman@gmail.com" if you want any or all of these.... Martin

Awesome....thanks much

@olfoundryman8418

4 жыл бұрын

Jim, Your welcome... Martin

It's full of knowledge thanks for wonderful videos. And my request to you is to make a video on cast iron casting if possible.

@olfoundryman8418

4 жыл бұрын

Abhay, I have only ever tried cast iron once and I mucked it up! 😱 The best Cast iron channel that I know of is luckygen1001 he has been doing cast iron for over 30 years and very much seems to know what he is doing.... Martin

@abhayharsora652

4 жыл бұрын

@@olfoundryman8418 yes sir i am following luckygen1001 and it's usefull. I asked him for better surface finish and he suggested me graphite powder and it works best👍.Btw thanks for your kind reply Mr. Magician.

Nice to see 3D printer

@olfoundryman8418

3 жыл бұрын

Amazing, Yes, they have their uses but if only they were a bit easier to clean up.... Martin

Your videos are the best! I’ve just subscribed and love all the info. Would it be possible to get the dimensions for the metal moulding box especially the pin lugs. Thank you from Canada.

@olfoundryman8418

4 жыл бұрын

Keith, Thank you for your comment. In the next video in this series - about a week away- there will be a download link to which you can go to download a complete set of STL files as well as pdf files of the moulding box sides including the pin lugs and oddside pieces. Which part of Canada? My dad was born in Agassiz BC mum in Winnipeg.... Martin

Thanks so much Martin finally a proper film on GOOD metal flasks, looking forward to the next instalment hope your not feeling too poorly all the best mate.

@olfoundryman8418

4 жыл бұрын

Woodsman, Thank you for your comment. Next instalment is in the can and should not be long. I am "still standing" but making the castings for videos like these is getting to be a bit of a trial... Martin

Thank you Martin for sharing all your knowledge. I am wondering if there is any color code standard for part, core patterns or to know for which metal the pattern is done...?

@olfoundryman8418

4 жыл бұрын

FGn. Yes, I think there is at least a colour code for which part of a pattern is a core print and which is cavity. However I know a "tame" pattern maker and I will ask him. I have not heard of a coding for different metals to be cast but it would not surprise me as a 2 foot contraction rule that I have has 4 different length scales on it - one scale is true inches and that others are longer to allow for the differing contraction of brass, aluminium, and cast iron. If I get a sensible answer from the pattern maker I will pass it on... Martin

@fabiengerardin5305

4 жыл бұрын

@@olfoundryman8418 thanks Martin, I assume so but did not find literature on that

Very nice Martin were so lucky to have all you years of R&D what is the hight of your boxes don't think I herd them . I might build myself a set of wooden patterns . No 3d printers here . Have hand tools at the ready

@olfoundryman8418

4 жыл бұрын

Old, My good friend Nigel at smallcnclathes is kindly doing PDF type drawings of the box side and the other little bits needed to make it easy to cast. If you send an email address to "olfoundryman@gmail.com" I will forward a copy of these drawings to you as soon as they are finished. Martin

Hallo Martin, I,m waiting for the near future :-)

@olfoundryman8418

4 жыл бұрын

Jaap, Part 2 about a week away other parts -well, that remains to be seen hopefully not too long.... Martin

Hi Martin, thank you again for a great bit of information and knowledge. in regard to the splayed corners of the box. I have a mill in the shed. and am contemplating casting some boxes. why did you opt for a 45 splay instead of using square ends? I was planning to flange and overlap the ends in a square configuration , after casting trim the ends to length and to square, then bolt the square corners. I am interested in your view on this. thanks

@markfryer9880

4 жыл бұрын

Charles, I am thinking that the idea behind the external miters is to increase the flexibility in matching up of the various box sides in the different sizes. The only difference between them is in the lengths whereas your method requires sides and ends in the different lengths to work thus requiring more parts to achieve the same flexibility in box sizes.

@olfoundryman8418

4 жыл бұрын

Charles, If you look at my video on my journey through moulding boxes you can see that for the two last lots of aluminium boxes that I made I did it exactly the way you are thinking of. I used a friends horizontal mill with a gang cutter to machine all the square ends and flats to receive the mating end at one pass. At the time it suited me well - I simply sand cast 84 sides (took weeks!) and machined and bolted together to give 10 complete flasks 6*8 with a spare 1/2 flask- next (some years later!) I cast 170 or so sides (using a gravity die) to cast three different length sides, these gave me my 8*10 and 10*12 inch boxes (10 of each) plus a couple of 8*12 This arrangement suited me as I was making and selling lots of the same sort of castings and for anything unusual I would resort to an older wooden box. When thinking of a flask to suit the hobbyist I figured what was needed was a system that can be easily altered to accommodate different one off castings and of course very importantly be easy to make. Deliberately then we have come up with a method that does not necessarily need a mill. However as I am sure is obvious a mill would be useful - to cut the pin slots for example and although we don't intend that people do so we have left enough "meat" in the design to allow milling the long edges of the sides to give a possibly neater box - if its done nicely and properly. There is nothing wrong with your idea, after all it got me by for 30 plus years, its perhaps a little weaker (particularly at the corners) that the 45 flange design but this has caused me only minor problems. However I suggest that you hang in there for as the series moves forward the flexibility of the system will become more obvious and I think you will appreciate its ability to accommodate greatly varied castings and you sure can use your mill if you wish - no rule against it 😊…. Martin

@olfoundryman8418

4 жыл бұрын

Mark, Pretty much got it in one … Martin

@charles1379

4 жыл бұрын

@@olfoundryman8418 thank you greatly for the perspective

Thanks for your work here Martin. Hoping to do some aluminium flasks in the near future. If you didn't have the restrictions of a 3d printer would you do it any different? When I do make, my plan is to cnc router patterns.

@olfoundryman8418

4 жыл бұрын

Making, My good friend Nigel at smallcnclathes is kindly doing PDF type drawings of the box side and the other little bits needed to make it easy to cast. If you send an email address to "olfoundryman@gmail.com" I will forward a copy of these drawings to you as soon as they are finished. We just chose 3D printing because it seems most (but not, I guess, all) people seem to have access to one. A pattern CNC routered from billet or solid wood would be a very good and accurate pattern. I guess that how you make the pattern is entirely up to you. And for sure having a mill or router will make the whole process a bit easier. Stay tuned for the rest of the series..... Martin

I have something unrelated but relivent . I'm considering building my first foundry and would like to know your opinions about propane burners and perhaps oil burners I think this might make a interesting series for you I'm sure you have a lot of information on the subject

@olfoundryman8418

4 жыл бұрын

Old iron, I have used both but my current furnaces are strictly oil as out here anyway its about half the price of LPG on a dollar per BTU basis. My big furnace will go through 55 litres of diesel fuel in a day so it can be significant although its more usual to use about 10 litres in a day with the smaller furnace that I use most of the time. Its much easier to build a gas burner than a GOOD oil one (I bought mine) but regardless you need a blower with either to get the air fuel ration right (self aspirating gas burners are not the best at this) I see the gas bottle freeze up as a bit of a problem. With oil you can use waste oil but I found this too messy and abandoned it many years ago. I guess easiest and quickest set up is with LPG but personally all things considered longer term oil is probably best. I keep the oil in an old beer keg and pressurise this to about 10 PSI (no more) to push the oil through without the need for a pump, diesel, which I use, ignites well and does not seem to need any sort of preheat. My oil burner is made from aluminium and does not even get much above warm during operation so it has lasted 50 plus years and is still going strong. I note that many LPG and home made oil burners seem to be short life things as they are pushed right up into the furnace an operate at least in part at red heat. I judge some of the small furnaces that you can buy as short life designs. My furnace, built around 1975, still uses the original lining - it will see me out.... Martin

thats quite a design. Ive made wood ones but my wood is about as good as cutting boards or birdhouses. Thanks for the thought.

@olfoundryman8418

4 жыл бұрын

gbowne, Yep, we have all been down the wood route and my wood was absolutely awful. Stay tuned for the rest of the series to get a full appreciation of al the benefits of this design…..Martin

I'd love a link to the Small CNC lathe channel. Search failed me.

@joandar1

4 жыл бұрын

kzread.info Cheers from John, Australia.

@smallcnclathes

4 жыл бұрын

@@joandar1 Thank You for that.

@olfoundryman8418

4 жыл бұрын

eulerizit et al, Very remiss of me! I should have put a link to Nigel's channel - have done so now... Martin

ingenuous

@olfoundryman8418

4 жыл бұрын

James, thank you - its what we tried for. But wait there is more as the series develops.... Martrin

Depending on what time of filament is being used, there are usually chemicals that can be used for post processing such as acetone vapor, isopropyl alcohol, etc. Might save you some time sanding and painting!

@olfoundryman8418

4 жыл бұрын

Flying, MEK was also recommended to me and I have tried a few things but without as much success as I would need to avoid sanding painting etc. In addition I sometimes got distortion, a fatal problem with a job like this. Sanding painting etc is indeed a bit of a pain but with a flat job like this its not too bad, with something more intricate though its just not on - I know - I have tried …😥 Martin

Thank you for this! Already have a 3D printer, looks like I’ll have to build a little forge now.

@olfoundryman8418

4 жыл бұрын

heli, Go for it!.... Martin

first! ToT and OFM in one day!

@donniebrown2896

4 жыл бұрын

Crap!!! Just did beat me to it. Lol

@gullreefclub

4 жыл бұрын

Congratulations head on down to you local StarBurnt order yourself up a Venti Latte and tell that and see what they tell you :-) Have a nice day!

@olfoundryman8418

4 жыл бұрын

I am more of a cappuccino man myself.... Martin PS. what the hell is a Venti Latte - can't be good if sunash have it 😏 We Aussies are damn fussy about our coffee!

Any idea when the STL files will be let out?

@olfoundryman8418

3 жыл бұрын

Doug, They were released some months ago. They are on a web site maintained by a friend but I have forgotten how to get to it (I am old 😥) and the friend is away for a few days. However I have copies of the files here and if you can give me an email address I can send them to you. Come to me on olfoundryman@gmail.com.... Martin

I've been trying to determine how to go about sizing sprue diameter and taper! I've been through most of your videos and, I suspect that I've missed something! I've considerably reduced diameter. I have a large pattern to pour, it's a 30 cm diameter wheel with a finished weight of about 5kgs without sprue and risers! Your comments would be much appreciated! Regards, Matthew

@olfoundryman8418

4 жыл бұрын

Matthew, I don't think that I have ever properly covered how to calculate a sprue in any of my videos so you have not ""missed" it. I did try some time ago via an excel spread sheet to find the "Holy Grail" of sprue tapers i.e. the universal taper that would satisfy all occasions - Sadly it does NOT exist. (I might publish this work at a later date.) But the required taper depends on sprue height, shape of sprue (i.e. round square or slot) area at base of sprue and relative height of sprue and sprue basin. I was disappointed that it all turned out to be so damn confusing. I use a sprue that is 8mm diameter at exit and has a 1.4 degree taper per side. This seems to suit most of my work (Aluminium 2 kg and down) Your situation 5 Kg net and possibly 8 to 10 Kg gross is altogether another situation. The Brush piston that I cast is closer at about 4Kg gross and there we used a slot sprue (way to big as it turned out). Can you send a drawing or at least a sketch of the casting and your feelings re the mould gates feeders and fill time etc to olfoundryman@gmail.com and I will have a bit of a look and a calculate and see what I come up with. There are some interesting ways of doing wheel type castings and I have done them up to 43.5 cm in diameter * about 1.5 cm thick (a lathe face plate) quite successfully..Martin PS, are you in Australia

Hi i have problem My sand is very soft and breaks when it melts. Is there a way to make the sand more durable? Thank you.

@olfoundryman8418

4 жыл бұрын

Masoud, Not sure that I can help but what do you mean by it melting - do you mean that the sand actually melts of just erodes away? How did you make up your sand and from what did you make it. How hard do you ram it?.... Martin

👍👍😎👍👍

Good to see and hear from you again Martin. I have to say that from a Carpentry and Joinery perspective that miters suck as they are a weak and fiddly joint. However, given that these boxes are to be bolted together and ease of manufacture is important to this exercise, mitre joints work best. Is the hardened steel pin really necessary or could someone opt for to use a mild steel pin or a bolt?

@olfoundryman8418

4 жыл бұрын

Mark, Always here just a bit slow these days. You could use a MS pin but I strongly urge against it. I have used both. 1, Hardened pins are less likely to get bent in use (I have never bent one) A bent pin is a useless pin. 2, Hardened pins are less likely to get nicked, bruised or otherwise damaged. 3, Hardened pins corrode at a much slower rate and any rust that does form on them is thinner and easier to remove than on MS pins 4, Hardened pins are (usually) better finished i.e. smoother 5, Hardened pins are less "sticky" I.e. there is less tendency for them to "solder" to the hole/slot they go into (the aluminium is very sticky and we don't really need a sticky pin too! 6, The hardened pins cost about $5.00 each - no doubt you could get an MS pin cheaper (maybe) but would the few dollars be worth it - I think not.- Remember the pins need to be more than 130 mm long. 7, Above all do not use an MS pin threaded into place or held by nuts on the pin - I have found such arrangements to be less than satisfactory 8, Have tried bolts and found them too soft, very sticky (particular if zinc plated) easily bent and damaged and the threads on them never quite seems to be parallel with the bolt - see my remarks in the earlier Moulding Box journey re bolts /threaded pins. My advice stick with the hardened pins (not chrome plated!)… Martin

Hello, Is it possible that you send me the 3d models of the metal moulding boxes ? Thanks you

@olfoundryman8418

3 жыл бұрын

Loan, Easiest way is you email me at olfoundryman@gmail.com and I will send them back to your address... Martin

3mm aluminium is quite strong.

@olfoundryman8418

4 жыл бұрын

Mr greens, Agreed - but that design had a sharp edge where it thinned down to that 3mm making it a bit prone to possible failure through stress concentration. At 5mm and no "notch" It will absolutely never break.... Martin

Hello Martin, is there any way I can contact you? say via email, I'm in Vic. Au

@olfoundryman8418

4 жыл бұрын

The silver, I am in Vic Au too - eastern suburbs Melbourne either "olfoundryman@gmail.com" or 97268910 -Write the number down will delete it in 2 days toavoin getting pestered.... Martin

@TheSilversheeps

4 жыл бұрын

@@olfoundryman8418 got it thanks!

@TheSilversheeps

4 жыл бұрын

@@olfoundryman8418 yes got it.