Re: [Emc-users] Custom Cast Iron castings
If you can print the pattern and supply it to the foundry, the cost will be low. But you should talk to the foundry about how to make the pattern. Some patterns will warp as they cool. I think it has to do with the part's thickness, or rather if there are thick and thin parts in the same pattern. Also, some patterns will shrink as they cool, and you need to design the pattern differently from the final part. I know someone who wanted to make some lighter-than-normal cast iron cookware, and the foundry said the pattern was too thin in some places. But as you made the pattern in CAD you can print it can give it to the foundry and they can tell you, then fixing it is very easy, not nearly as hard as making a new wood pattern. Unless you have a lot of experience with making cast iron parts, you want to use a LOCAL foundry where you can talk to the person there in person. Then he can tell you how to redesign the pattern if that is required. You need to follow their design rules On Mon, Apr 3, 2023 at 5:46 AM Todd Zuercher wrote: > Google up some names and make some phone calls. There are literally > thousands of small foundries across the US. The trick is finding which one > wants your money and is most convenient for you. > > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -Original Message- > From: hubert > Sent: Sunday, April 02, 2023 1:11 PM > To: emc-users@lists.sourceforge.net > Subject: [Emc-users] Custom Cast Iron castings > > [EXTERNAL EMAIL] Be sure links are safe. > > I have a new spindle that I would like to mount on my Mill. It larger, > faster and more powerful than my current spindle. I have created a 3D > model of the desired spindle holder box that I would like to get converted > to cast iron. > > I would appreciate recommendations on sources of custom castings. > > I live in central Texas. > > Hubert > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C01%7Ctoddz%40pgrahamdunn.com%7Cb7c4ae84bd1546b4b75008db339f3b9e%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638160531218900158%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=rkhVNnOD5ghrL%2BUAxVXh0vwtzjq2NXxvWMPYm872ToA%3D=0 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Custom Cast Iron castings
Google up some names and make some phone calls. There are literally thousands of small foundries across the US. The trick is finding which one wants your money and is most convenient for you. Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -Original Message- From: hubert Sent: Sunday, April 02, 2023 1:11 PM To: emc-users@lists.sourceforge.net Subject: [Emc-users] Custom Cast Iron castings [EXTERNAL EMAIL] Be sure links are safe. I have a new spindle that I would like to mount on my Mill. It larger, faster and more powerful than my current spindle. I have created a 3D model of the desired spindle holder box that I would like to get converted to cast iron. I would appreciate recommendations on sources of custom castings. I live in central Texas. Hubert ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C01%7Ctoddz%40pgrahamdunn.com%7Cb7c4ae84bd1546b4b75008db339f3b9e%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638160531218900158%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=rkhVNnOD5ghrL%2BUAxVXh0vwtzjq2NXxvWMPYm872ToA%3D=0 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Custom Cast Iron castings
On Sun, 2 Apr 2023 at 18:30, hubert wrote: I would appreciate recommendations on sources of custom castings. It's helpful to be able to make your own patterns. Castings are cheap (I pay about £10 / kg for one-offs) but pattern-making is expensive. However, 3D-printing has made pattern making very much easier (especially loose pieces and odd-sides) As an example of an odd-side, the red part here is the part pattern, the blue is a an odd-side, something that it is cradled in during the ramming of the first half of the mould. Very difficult to make traditionally, a few minutes to design and send to the printer in CAD. Though, you can always make the patterns the traditional way, in wood. Here is a very fancy pattern made by a friend of mine: https://hmvf.co.uk/topic/9672-ww1-thornycroft-restoration/?do=findComment=496232 The fun part is learning to think in terms of casting metal _and_ "casting air" Once you have a pattern, then in the UK I use AJD, but in the US the name that keeps coming up is "WIndy Hill" https://windyhillfoundry.com but it's probably worth ringing around. If the foundry is doing manual sand casting then there is really no economy of scale, so a one-off costs pretty much the same per part as thousands. (And is a little less boring for the moulder) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
