That was great and the sign looks great I really want to do some foam casting. My problem is the pattern. I do not have cnc anything so I would have to carve it myself which is why I have not tried yet. Maybe I will find someone with a cnc router some day. Or make one myself. Thanks for the video keep on keeping on.
I just wanted to add few grains of wisdom-metal pipes like that run and last longer if you coat them with colloidal silicate.If you buy sodium silicate and start boiling it in a SS pot, you can keep adding citric acid powder till you start seeing the small drops of silica precipitating out of the solution, you need to stop adding acid as soon as you see first sign of it. Now you've colloidal silica which is used as a binder in refractory industry and can withstand more temperature then regular silicate. Sodium silicate is great for core making if you mix it with sand -it cures with CO2 so you can cure cores fast with 2 jars connected with hose -in one you place cores in other baking soda and vinegar. You can coat your polystyrene pattern with home made slurry made of dry wall compound(used for connecting two boards where tape goes) that you water down to a consistency of a pancake mix . Another coating you can do is sodium silicate and sand and then you apply it with spatula in thin layers and let it dry . You can even reinforce coating with wire or stainless steel mosqeto mesh. Aerated concrete blocks are great insulators ,dont burn and they are flat ,easy to work with an cut,and they are light -you can use them instead of wood(or you can make bigger flask and use wood screws to hold it inside -that way wood wont burn out every time you cast) -you can glue them with sodium silicate and sand or use threaded rods and washers -they are kinda fragile unless you coat them with silicate.makes a decent casting flask,or propane forge/foundry insulator .They are cheap too.Worst part about casting for me is to have constantly remake wooden flasks since i dont have wood working equipment -some people cast aluminum ones but i dont have pattern or big enough foundry. Finally for the end Olfoundryman on youtube shared a lot of knowledge about sand casting and mistakes that people do that can be very usefull and improve sucess rate by alot.
Wow you got me thinking now. :) sodium silicate yes. Good ideas I have used it before to keep the mold flat. the oldfoundryman has an awesome channel. Great wealth of knowledge that guy.
I'm using a cnc router for the parts. You may see it briefly in some of my videos at the beginning. I have used wood working tools as well. I just have to be careful of breathing in the dust. I can't imagine it would be that good for you. Also sanding the parts with sandpaper will take away the tool marks and will give you a better finish.
Came out great.
Thanks Trapper ! It was a fun easy one
Awesomw! its a beast. i like your supports. good idea for sure. cheers
Thanks steve !! Working on maby using some 1x1 square stock next time
Pretty cool. Last time I cast something was 1984. 😊I guess I am getting old. LOL!
No my friend your getting experianced 😎
That was great and the sign looks great I really want to do some foam casting. My problem is the pattern. I do not have cnc anything so I would have to carve it myself which is why I have not tried yet. Maybe I will find someone with a cnc router some day. Or make one myself. Thanks for the video keep on keeping on.
What abputba scroll saw . Oh oh evwn better hot wire out side ( smoke ) and glue otbwith hot glue . I did a wood patyern like that years ago .
@@Wrighmachining I have been watching a guy make some elaborate items with a router and foam so I sort of want to do it like that.
Oh ya kelly . That guy is awsome ! Totaly . Wood working tools and some time . You could literaly cast anything . Gets your brain working doesmt it
Very nice
Thank you roscoe !
I just wanted to add few grains of wisdom-metal pipes like that run and last longer if you coat them with colloidal silicate.If you buy sodium silicate and start boiling it in a SS pot, you can keep adding citric acid powder till you start seeing the small drops of silica precipitating out of the solution, you need to stop adding acid as soon as you see first sign of it. Now you've colloidal silica which is used as a binder in refractory industry and can withstand more temperature then regular silicate.
Sodium silicate is great for core making if you mix it with sand -it cures with CO2 so you can cure cores fast with 2 jars connected with hose -in one you place cores in other baking soda and vinegar.
You can coat your polystyrene pattern with home made slurry made of dry wall compound(used for connecting two boards where tape goes) that you water down to a consistency of a pancake mix .
Another coating you can do is sodium silicate and sand and then you apply it with spatula in thin layers and let it dry .
You can even reinforce coating with wire or stainless steel mosqeto mesh.
Aerated concrete blocks are great insulators ,dont burn and they are flat ,easy to work with an cut,and they are light -you can use them instead of wood(or you can make bigger flask and use wood screws to hold it inside -that way wood wont burn out every time you cast) -you can glue them with sodium silicate and sand or use threaded rods and washers -they are kinda fragile unless you coat them with silicate.makes a decent casting flask,or propane forge/foundry insulator .They are cheap too.Worst part about casting for me is to have constantly remake wooden flasks since i dont have wood working equipment -some people cast aluminum ones but i dont have pattern or big enough foundry.
Finally for the end Olfoundryman on youtube shared a lot of knowledge about sand casting and mistakes that people do that can be very usefull and improve sucess rate by alot.
Wow you got me thinking now. :) sodium silicate yes. Good ideas I have used it before to keep the mold flat.
the oldfoundryman has an awesome channel. Great wealth of knowledge that guy.
😂Do mind me asking what is that you are using to cut the foam out
I'm using a cnc router for the parts. You may see it briefly in some of my videos at the beginning. I have used wood working tools as well. I just have to be careful of breathing in the dust. I can't imagine it would be that good for you. Also sanding the parts with sandpaper will take away the tool marks and will give you a better finish.
cool. please get some leg & foot protection.
Thank you for caring , ill work on getting that today