--- In [EMAIL PROTECTED], Kim Lux <[EMAIL PROTECTED]> wrote: > > > We just went through this discussion on the emc-users group. The > general consensus was that USB parallel ports will not work because data > might be queued, thus messing up timing to the servo/stepper motors. > Not all of us agreed, however.
Simply put, they are wrong and you were correct. The entire project can be sent to a smart controller and just run without the PC even being connected. Yes, e-stop and end switches then need to be in the controller. That's why is would have to be a smart controller. Also, data transfer can be buffered with 5 minutes of table time being sent so the buffer has between 5 and 10 minutes of table time. Even Windoz would have a hard time messing that up. It was about a year ago when the first public tests were becomming available for this stuff and many of the software vendors we use have prototypes to work around. So, the answer is that not only can it be done, it IS being worked on and HAS BEEN for the last year. The question of WHEN it will be a final product is another thing entirely. As the saying goes, it takes 90% of the time to do 90% of the work and another 90% of the time to do 90% of the remaining work and another 90% of the time..... Dave Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
