Umm, A Bridgeport sized mill is usually fitted with something in the region of a 30 in-lb motor. If you used a 250 in-lb monster on a plasma cutter it would probably tear the gantry off and throw it though the nearest wall!
Assume that the motor has a top speed of 2000rpm and is geared for a top speed of 200IPM. This gives 10 revs/inch. Assuming 100% transmission efficiency the thrust available would be 250 * 2 * pi * 10 = 15707 lbs. If your gantry weighs 100 lbs you would have an acceleration of 157g If you want a smaller driver than Gecko or Rutex then IMService have a 30V 5A servo driver <http://www.cadcamcadcam.com/index.asp?PageAction=VIEWPROD&ProdID=11> I think somewhere between 20 and 30 in-oz with a top speed of 2000 - 3000 rpm would be ideal for a plasma cutter. Les >We are obvously talking different types of machines. For a plasma >cutter with a 4 ft table, I would expect that something on the order >of 250 inch pounds to move the gantry, but double that for higher >speeds ? > >It appears to me that those motors are very light ??? > >I was assuming that shotting for more than 20 watts was in order ? > >What driver would be best ? The Rutex and Geckos shoot for 70 plus >volts and some of the links show 9 volts.... Is there a lower cost >driver that would handle the smaller motors for half the price ? > >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 > > > > > > > > > > > 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/
