If anyone else is having trouble finding it, you might want to check out auctions for pyrotechnic supplies, or the online stores that sell them. I think the pyro technicians use water glass to protect the paper and card from heat, and often call it water glass as well.
A gas oven gives out CO2, water and heat. If it was giving out monoxide, you would be in a bad, bad way! Old school 'coal gas' did contain monoxide & people would pass out or die if they inhaled it (intentionally or not).
rbneville, Just to smarten you up, your gas stove does produce carbon monoxide, it produces an amount that is small enough not to affect you. Any device that burns at a high BTU requires a vent pipe to the outside. ( heating system,water heater,etc.). So next time you don't want to look like an ass, get your facts straight!
@mdivinc ok dude fucking chill. Sorry if I didnt spend my time studing what gasses are produce by ovens. All I knew was Carbon monoxide is deadly. But thanks for the info anyways.
@mrpete222 Your oven is indeed making c02 (carbon dioxide). If it was making co ( carbon monoxide) it would not be burning the gas fully and would be posioning you. This would make you sick and could kill you.
I was wondering, could you use regular greensand for the cores? The only reason i could think of, is because it might become weak. But i'm interested because im building a steam engine with a 3" bore, so it might be a little bit more sturdy. Any help would be greatly appreciated
Great Video. I would like to buy some of that Foundry Core binder but I can't find it on Ebay or locate it on the internet. Do you have another place that I can buy it from. Thank you.
I just use a screwdriver & drill & scrape it out. All cores must have "collapsibility". This allows the metal to shrink around them without tearing. Also allows a core to be removed fairly easily. Years ago, cores often had oatmeal in them--this burned out, and made the core collapsible.
Great i was wondering how you made all these engines.I want to make a sterling engine to power a generator using a wood stove for heat.Would love to see you actually make a piece and pour it but this video was almost as good...
If anyone else is having trouble finding it, you might want to check out auctions for pyrotechnic supplies, or the online stores that sell them. I think the pyro technicians use water glass to protect the paper and card from heat, and often call it water glass as well.
A gas oven gives out CO2, water and heat. If it was giving out monoxide, you would be in a bad, bad way! Old school 'coal gas' did contain monoxide & people would pass out or die if they inhaled it (intentionally or not).
lexichronicle2 1 month ago
When making a pattern, does it have to be made a certain percentage oversized to allow for shrinkage of the cooling final part?
MrMaypole14 4 months ago
@MrMaypole14 Yes--all measuring is done with a shrink ruler --for alum, it is 3/32" per foot shrinkage.
mrpete222 4 months ago
Lol, PROTUBERANCES
phranklyn 1 year ago
What is Aluminum?
phranklyn 1 year ago
rbneville, Just to smarten you up, your gas stove does produce carbon monoxide, it produces an amount that is small enough not to affect you. Any device that burns at a high BTU requires a vent pipe to the outside. ( heating system,water heater,etc.). So next time you don't want to look like an ass, get your facts straight!
mdivinc 1 year ago
@mdivinc ok dude fucking chill. Sorry if I didnt spend my time studing what gasses are produce by ovens. All I knew was Carbon monoxide is deadly. But thanks for the info anyways.
rbneville 1 year ago
Interesting, thanks.
AkGrayWolf 2 years ago
Co2 is carbon dioxide,What your oven produces is carbon monoxide. The two are completely different. I think your oven is baking the mold.
mdivinc 2 years ago
Might be.
mrpete222 2 years ago
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@mrpete222 Your oven is indeed making c02 (carbon dioxide). If it was making co ( carbon monoxide) it would not be burning the gas fully and would be posioning you. This would make you sick and could kill you.
hmcjp28 1 year ago
@mdivinc if your oven produced carbon monoxide everyone in your kitchen would die from Carbon Monoxide poisoning
rbneville 1 year ago
@rbneville see my post pea brain
mdivinc 1 year ago
@mdivinc If it's a gas stove it will produce co2 if it's adjusted properly
bipolarskizo 10 months ago
This has been flagged as spam show
I was wondering, could you use regular greensand for the cores? The only reason i could think of, is because it might become weak. But i'm interested because im building a steam engine with a 3" bore, so it might be a little bit more sturdy. Any help would be greatly appreciated
tquinn51 2 years ago
Comment removed
tquinn51 2 years ago
great videos and excellently explained
Seano71 2 years ago
Great Video. I would like to buy some of that Foundry Core binder but I can't find it on Ebay or locate it on the internet. Do you have another place that I can buy it from. Thank you.
backyardengineer 2 years ago
ebay Item number: 160366036906
mrpete222 2 years ago
could you have made the core box by drilling down with a 1/2 bit as opposed to using a ball end mill? Thanks?
eddie2799 2 years ago
Very interesting!
jamespetts2 2 years ago
A very nice tippy video again!
How do you get that core out of the casting?
jozafax 2 years ago
I just use a screwdriver & drill & scrape it out. All cores must have "collapsibility". This allows the metal to shrink around them without tearing. Also allows a core to be removed fairly easily. Years ago, cores often had oatmeal in them--this burned out, and made the core collapsible.
mrpete222 2 years ago
Hi, love your videos, your students were truly blessed to have you as their teacher, and we are too thanks to you tube.
I have a book from London printed in 1908 titled 'malleable casting, brass founding, motor castings, smithing and forging'
Back then they used horse manure as the collapsible ingredient.
Cheers, Waz.
MrWiseArse 10 months ago
I will be making a mold & pouring metal in a later video, but not until warm weather
mrpete222 3 years ago
Great i was wondering how you made all these engines.I want to make a sterling engine to power a generator using a wood stove for heat.Would love to see you actually make a piece and pour it but this video was almost as good...
donjuanzx9 3 years ago
Thanks very helpfull. I have been wanting to use some cores but I wasn't sure how to go about it, Thanks
Checkout some pics of my cast aluminum egg poacher on PHOTOBUCkET look for KG4ENB pics
plasticroach 3 years ago