CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. long

Posted by Leslie Newell
on 2006-12-18 12:00:12 UTC
>
> If you check the subject line, it is for table top machnes. Les
> either has a really large table or he too missed the size the OP is
> talking about.
>

Perhaps I over emphasized the 'crashing into the endstops' bit but even
a small machine like this is quite likely to suffer from the Z axis
winding down under it's own weight when power is removed, especially
with a direct drive servo. This is presumably why Techno fitted a brake.

I admit I do run some big machines. One of my lathes is a 3.5 tonne
monster that will flatten most tables ;-) However I also have a Denford
Orac which is a larger table top machine. I also have a Denford Triac
benchtop mill. A while back I retrofitted an Emco Compact5 CNC lathe for
a local woodworker. He kept complaining about how slow it was. In the
end I replaced the steppers with servos. It now flies, turning out chess
pieces and flute parts.

Les

Discussion Thread

enytned1 2006-12-15 15:31:16 UTC Servo controllers for table top machines. Anders Wallin 2006-12-16 02:54:41 UTC Re: [CAD_CAM_EDM_DRO] Servo controllers for table top machines. caudlet 2006-12-16 08:09:16 UTC Re: Servo controllers for table top machines. enytned1 2006-12-16 15:50:12 UTC Re: Servo controllers for table top machines. Mariss Freimanis 2006-12-16 22:01:40 UTC Re: Servo controllers for table top machines. Leslie Newell 2006-12-17 02:18:06 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. turbulatordude 2006-12-17 08:35:24 UTC Re: Servo controllers for table top machines. Dan Mauch 2006-12-17 08:49:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. John Dammeyer 2006-12-17 15:42:35 UTC RE: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. enytned1 2006-12-17 16:58:27 UTC Re: Servo controllers for table top machines. Mariss Freimanis 2006-12-17 17:46:37 UTC Re: Servo controllers for table top machines. Steve Blackmore 2006-12-17 17:49:55 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. Leslie Newell 2006-12-18 01:57:44 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. Leslie Newell 2006-12-18 02:39:36 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. Polaraligned 2006-12-18 04:52:37 UTC Re: Servo controllers for table top machines. David Bloomfield 2006-12-18 05:28:56 UTC Re: Servo controllers for table top machines. Fred Smith 2006-12-18 05:56:36 UTC Re: Servo controllers for table top machines. enytned1 2006-12-18 08:07:40 UTC Re: Servo controllers for table top machines. turbulatordude 2006-12-18 08:55:03 UTC Re: Servo controllers for table top machines. long Fred Smith 2006-12-18 11:07:30 UTC Re: Servo controllers for table top machines. Leslie Newell 2006-12-18 11:51:32 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. Leslie Newell 2006-12-18 12:00:12 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. long Steve Blackmore 2006-12-18 15:26:29 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. Leslie Newell 2006-12-18 17:16:45 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. turbulatordude 2006-12-19 04:29:10 UTC Re: Servo controllers for table top machines. long William Carr 2006-12-26 07:05:51 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines. lcdpublishing 2006-12-26 07:41:47 UTC Re: Servo controllers for table top machines. Jon Elson 2006-12-26 11:05:56 UTC Re: [CAD_CAM_EDM_DRO] Re: Servo controllers for table top machines.