CAD CAM EDM DRO - Yahoo Group Archive

Machine flex; How much is to much?

Posted by protman16
on 2003-09-24 04:50:25 UTC
Group,

I have just completed converting a mill/drill to cnc. It has a belt
driven spindle with a round column. For the z-axis I replaced the
riser casting with THK LM slides that now allow the mill to have
about 11" of travel. There are a couple of reasons why I did this.
First is that 5" travel is too short most jobs that I run, second is
that when boring using the quill there is too much flex resulting in
elliptical holes (same applies for side milling).
Currently I have not measured the amount deflection but I will
attempt to very soon.
My question is to the group what amount of cutter/spindle deflection
is acceptable on this type of mill that still provides reasonable
accuracy and good repeatability?

Trevor

Discussion Thread

protman16 2003-09-24 04:50:25 UTC Machine flex; How much is to much? Kim Lux 2003-09-24 06:16:31 UTC CNCing the knee axis... Weyland 2003-09-24 07:19:44 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... Kim Lux 2003-09-24 07:38:28 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... mayfieldtm 2003-09-24 07:47:09 UTC Re: Machine flex; How much is to much? Weyland 2003-09-24 07:50:50 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... Tim Goldstein 2003-09-24 07:58:05 UTC RE: [CAD_CAM_EDM_DRO] CNCing the knee axis... Leslie M. Watts 2003-09-24 08:24:58 UTC RE: [CAD_CAM_EDM_DRO] Re: Machine flex; How much is to much? Peter R 2003-09-24 08:36:44 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... Dan Mauch 2003-09-24 09:21:16 UTC RE: [CAD_CAM_EDM_DRO] CNCing the knee axis... barker806 2003-09-24 09:22:05 UTC Re: CNCing the knee axis... Marv Frankel 2003-09-24 09:40:27 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... Jon Elson 2003-09-24 10:16:44 UTC Re: [CAD_CAM_EDM_DRO] Machine flex; How much is to much? Jon Elson 2003-09-24 10:23:01 UTC Re: [CAD_CAM_EDM_DRO] Re: Machine flex; How much is to much? Alan Marconett KM6VV 2003-09-24 10:29:23 UTC Re: [CAD_CAM_EDM_DRO] Machine flex; How much is to much? R Rogers 2003-09-24 12:07:15 UTC Re: [CAD_CAM_EDM_DRO] Machine flex; How much is to much? Kim Lux 2003-09-24 12:57:24 UTC RE: [CAD_CAM_EDM_DRO] CNCing the knee axis... Kim Lux 2003-09-24 13:01:32 UTC Re: [CAD_CAM_EDM_DRO] CNCing the knee axis... Kim Lux 2003-09-24 13:05:45 UTC Re: [CAD_CAM_EDM_DRO] Re: CNCing the knee axis... barker806 2003-09-24 13:18:03 UTC Re: CNCing the knee axis... Kim Lux 2003-09-24 13:26:57 UTC Re: [CAD_CAM_EDM_DRO] Re: CNCing the knee axis... barker806 2003-09-24 16:40:25 UTC Re: CNCing the knee axis... Jon Elson 2003-09-24 21:23:31 UTC Re: [CAD_CAM_EDM_DRO] Re: CNCing the knee axis... protman16 2003-09-25 04:35:24 UTC Re: Machine flex; How much is to much? protman16 2003-09-25 04:44:47 UTC Re: Machine flex; How much is to much? protman16 2003-09-25 04:47:30 UTC Re: Machine flex; How much is to much? Jon Elson 2003-09-25 10:08:02 UTC Re: [CAD_CAM_EDM_DRO] Re: Machine flex; How much is to much? protman16 2003-09-25 10:51:57 UTC Re: Machine flex; How much is to much? Jim Brown 2003-09-25 22:38:37 UTC Re: [CAD_CAM_EDM_DRO] Re: Machine flex; How much is to much? R Rogers 2003-09-26 07:10:09 UTC Re: [CAD_CAM_EDM_DRO] Re: Machine flex; How much is to much? m0nkey0ne 2003-09-26 11:19:48 UTC Re: Machine flex; How much is to much?