Metal Casting at Home Part 24 Solving a Mould problem

[@creast56]

Yet another excellent video! With regard to you and Tubalcain and your comments, you two exemplify engineering craftsmanship equally from both sides of the pond. The internet and KZbin have a lot to thank you for! Keep it up!

[@rodegale]

Excellent videos. Very educative. I am a student and at the moment I am building a waste oil foundry to melt scrap materials even steel. I like casting processes. One suggestion that might help you save some talcum powder is to use a porous small sack. It also helps to spread the powder more evenly on the surface. Thanks for your videos, Keep up the good work.

[@stillbashingmetal]

Captivating from start to finish. Another great video. Never get tired of watching your stuff. Thanks very much for the time and effort you give. It's appreciated.

[@magneticatastrophy]

Clever way to fix your mold. I enjoy your videos.

[@gohuskies583]

@myfordboy Both of you are putting out quality stuff and we have all learned much from your videos. What makes them so enjoyable is that you enjoy sharing your craft with the world. Keep up the great work!

[@myfordboy]

@bx2200 Its about an inch. Its a 22mm ID copper pipe

[@TanllwythDaf]

Thanks for sharing the entire series, I am looking forward to getting a furnace set up and can't wait to get casting.

[@f.demascio1857]

So great to see the idea to use screws. I've got a difficult cast project to do, my model is prepped, just waiting for weather to clear up (Hurricane Florence). I've been thinking I need to make a core, but I'm going to try the screws first.

[@myfordboy]

See video 24. The pattern is not cut in half after it is made. It is made in two parts throughout.

[@AmericanMaking]

I love your videos. Thanks for sharing. And great job.

[@andytysn]

Thank you for another great video, It comes at just the right time for me (I am having a similar mould making issue, I like the screw idea and can't wait to try it!) You and mrpete are the best!!!!

[@myfordboy]

@bx2200 I used a Dinky toy racing car in video 17 to make 10 replicas.I cut the orgional in half to make a split pattern and filled the inside with car filler to make the draft required.

[@myfordboy]

Yes, I am currently using alloy car wheels with good results. The hardest part is cutting them up into small pieces. I only use metal that has been cast before.

[@dnaremah]

Lovin' your work ! Big help with core casting, thanks Mr Hot Potato !

[@MrLeonard55]

I really enjoy your videos.

[@landloper1986]

@myfordboy thanks. thought so, man I can't wait to get a go at that. starting from scratch though. I need everithimg. from a furnace to safety equipment, to scrap metal for melting. this is going to be at least a decade work, to just start smelting and moulding. but itll be worth it. learning tonns of stuff from you guys. thanks for that

[@Morkvonork]

@myfordboy I think its because a lot of people who have a little machine shop would never think of starting metal casting on their own.

[@myfordboy]

@Dancerpro1 Experience, or you can put the pattern in water and see how much is displaced, then measure the volume.

[@myfordboy]

This sand is a commercial foundry greensand. It was brown but has darkened with use. I believe there may be coaldust included in it's manufacture.

[@stickytwat]

Those small screws made me smile and knew what you were up to! ;) Personally would have used a core or some bent wire mesh as a quick fix.

[@f.demascio1857]

Bent wire mesh... I hadn't thought of that. If the screws fail me, I'll try that. Trying to avoid the addition of sodium silicate to the mess in my work space.

[@morlanius]

Its interesting to see how his method and technique has evolved since this.

[@kameleonvkci]

I liked that you showed failure part too. ;) Great video

[@marcibb3167]

Thank you for an other great instructive video

[@myfordboy]

I don't know of any. It may be necessary to adjust the pattern if it cannot be withdrawn from the mould.

[@myfordboy]

Possibly, yes but greensand is reusable whereas you loose a little oil bonded every cast.

[@rojasbdm]

I see you cut the ingate from the top half of the mould this time. I just wanna point out that this is a good practice because it traps loss sand from the feeder (if any) as part of the feeder itself and away from the piece.

[@myfordboy]

@theteewording Sand comes from a a foundry supplier.

[@myfordboy]

The height gives the metal "head" and feeds the mould as the metal shrinks.

[@myfordboy]

@landloper1986 Sand can be used over and over again.

[@express375]

Lovely job

[@mrpete222]

You are quite ingenious and your videos are better than mine. tubalcain

[@myfordboy]

@yetshi They are home made from modesty blocks. A few people have asked about these, perhaps I should do a short video on the construction.

[@FireDropTechnologies]

See? you use a differant teqnique than the one I was taught, in the fashion I was taught? One uses Lindseed oil to bond the sand, and then bakes the mold till it sets hard, before removing the Mould blanks, It alows for much more intricate, pattern, with less chance of sand failure. Much like the Porciline dipping method.

[@bx2200]

Do you ever use an existing third-party part to create a split mold for a new, duplicate part? I'm interested in the repair and restoration of old engines, and I would love to see how that's done.

[@leeadamaa]

If it was causing more problems even after you used the wooden screws. Could you have used a small core in the hole to prevent any metal from getting in there? love your videos by the way :D they keep me company at work and keep me from shooting myself at the boredom of my job xD.

[@myfordboy]

No, it needs to have a little moisture to hold together.

[@bx2200]

What is the ID of the feeder and riser tubes? It looks to be about 1"? Many thanks for yet another well-done and instructive video!

[@myfordboy]

Another way,like you suggest woukd be to use a sand core.

[@sthwestb]

You should use a wire brush after cooling your pieces to get the dirt/sand out... it works great for me. = 0)

[@gwheyduke]

@shortfusedleathernk May I suggest several books by Terry Aspin? They are TAB workshop practice series, The Backyard Foundry and "Foundrywork for the Amateur". Both filled with illustrations and good information on sand casting.

[@myfordboy]

@yagere92 Yes it can.

[@Strothy2]

so impressive! my biggest respect to u sir

[@myfordboy]

Sorry I don't understand the question.

[@magnuslord4361]

Fantastic videos! Do you need to let the sand dry before you can pour the aluminium?

[@myfordboy]

That's right but if it can be done without it is less work.

[@myfordboy]

@mrpete222 You have more views than me though! Thank you, that's quite a compliment from a respected engineer like yourself.

[@LarryMMackey]

Thanks love your videos and @mrpete222 by the way!!

[@yetshi]

love the videos. where did you get those pin locks for the cope and drag?

[@FireDropTechnologies]

I have never tryed it? But wouldthink that starch could be used , in a water base for the same purpose when baked.

[@shortfusedleathernk]

Great video, would love to learn how to cast stuff myself!

[@brandoc1950]

Another great educational video, thanks for uploading them. BTW, which motorway do you live next to? :) @mrepete, myfordboy's video's aren't any better in my view. You both do great video's but with different presentation. And I'd be gobsmacked if myfordboy spoke, and think I'd gone deaf if mrpete didn't. ;)

[@turtlemann14]

chrome is some stuff that you don't want to mess with, better to take it somewhere else. there are some steps that are pretty hazardous.

[@myfordboy]

No, only aluminium

[@myfordboy]

Yes but don't ask me how!

[@hypoallergeni]

Do you heat treat your castings afterwards or does the alloy you use machine well right out of the mold.

[@myfordboy]

This is my hobby not a bussines so sorry cannot help.

[@hypoallergeni]

What alloys do you usually use? Do you just use stuff that you know has been cast before like car rims, engines and pistons?

[@charles1379]

I appreciate the great work and detail but I have a question. Why do most people work on the floor while moulding??

[@myfordboy]

+Charles Camenzuli I don't mind working on the floor but a strong bench would make a good surface. The disadvantage though is that all the sand, I have 125 kg, would have to be lifted onto the bench.

[@megmckernan]

So do you add the extra height riser to avoid a thicker part like this losing shape as it cools?

[@jmase8544]

Why did not the second box directly instead of all back?

[@myfordboy]

The metal machines well as cast.

[@myfordboy]

The sand needs to be rammed hard. Vibration would not do that.

[@tommie293]

Why isn't a vibration table used to pack the sand?

[@landloper1986]

question. are you able to reuse the sand, I would think so, but I honestly don't have a clue

[@turtlemann14]

are there any other release agents that you can use with good results?

[@myfordboy]

You can build your own. See my video on the furnace. More details at myfordboy.blogspot.com

[@yagere92]

Is it possible to use that greensand again and again and again..?

[@gheralbraga7555]

Excuse my ignorance please, why the sand is black?

[@charles1379]

Are the extended risers really necessary or are they just insurance for a good pour??

[@myfordboy]

+Charles Camenzuli They give extra head to the metal which helps it flow into thin sections and also feeds the metal as it cools.

[@v8power101]

where does one get a furnace like that?

[@life6567]

Hello! "What can you use to design it on computer, please?

[@myfordboy]

You can use any 3D CAD program to design parts. I use ViaCad.

[@vhin1977]

can we chrome those finish product ?

[@stuartbassett4044]

still a basic caster but looking for full chess set pattern any pointers would be appreciated

[@myfordboy]

+Stuart Bassett A 2 part chess pattern should be easy to make.

[@Fixinthatupvideos]

T=up

[@FireDropTechnologies]

Laundery starch would be inexpensive.

[@myfordboy]

@yetshi I have added details at myfordboy.blogspot.com

[@6255805]

那是痱子粉嗎?

[@vanessamayo9892]

what's greensand?

[@myfordboy]

+Vanessa Mayo I have described it here myfordboy.blogspot.co.uk/p/greensand.html

[@vanessamayo9892]

Thanks