| The Shop > Metal Stuff |
| Green sand molding methods |
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| micktoon:
Hi Ironman , no problem with your accent here either , my accent is the same as John Doubleboost, as stated so many accents about its all a game tuning into them and also good to hear all the various accents on videos about the net..................... I think I got yours strait off because of the Fosters adverts maybe :thumbup: All good videos anyway , so whatever the mood takes you I say , but I think most people would enjoy your accent as awell as understand it no problem..... keep up the good work :clap: Cheers Mick |
| ironman:
Thank you for all your replies. I find making comments distracting even more so when ramming a green sand mold which requires your undivided attention. Also I have to make sure that I don't block the camera's view. I am finding out that making videos is not as easy. I find subtitles easy to use. |
| Meldonmech:
Hi Ironman, You made some fine castings, and video's, I find you get much better castings using aluminium machined patterns. Do you use CO2 cured cores? Well Done Cheers David |
| ironman:
Meldonmech Patterns are made from fine grained timber which can be expensive or hard to find so I use what is in my workshop. I use a lot of aluminium billets cast from scrap and plastic sheets that were old for sale signs. These items do not crack split or have grains in them like timber so are perfect for patterns. A long time ago I used Co2 cores but lost interest because of cost and very poor post casting breakdown. A very cheap alternative is portland cement for cores and molds. Use about 8-10 % cement and about 4% water then wait for 3-5 days to set. |
| awemawson:
Mix icing sugar with the sodium silicate for an easy breakdown of CO2 cores |
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