On 05/12/2012 10:15 AM, k...@gmail.com wrote: > There is a bit of talk on some machine shop forums, arguments perhaps, that > retrofitting a machine is a waste of time. > And that it's time and money well spent to just buy a good used > machine and move on with making money with it. > Any comments on this from the list? It seems like some information for making a good comment is missing. This decision, although it can be divided up into lots of micro-categories, to do it justice needs at least a few categories. I suggest these basic ones.
1. A machine shop with lots of paying customers, lots of machining knowledge, and little electronics knowledge, and no spare time. 2. Someone with time on their hands, and enough electronic knowledge. A. a manual machine that can be bought for a song, and is in good condition. B. a CNC machine that can be bought for a song, and has a control issue. C. a CNC machine that can be bought for a song, and requires major rebuilding. From what I've heard, converting a manual machine to CNC is very unlikely to be a good decision, although for some it might work. Someone who has lurked in this forum should know enough parts sources to make a good decision on parts to replace a control on a machine that's in good shape otherwise. A CNC machine that's been abused, that has rusted ball screws and ways may not be a good choice even if it has a working control. I still use a Bandit control at work that's limited to 512 program commands. Even working that is a major limitation for someone who has more complicated parts to cut. For what we use it for, 512 commands is rarely a limitation at all; but I would suspect the typical shop would want to replace at least the computer part. For the machine shop that has lots of expertise in machining, and little in electronics, a working machine either new or great used condition is just the right match. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users