RE: [CAD_CAM_EDM_DRO] Re: Conversion Of Mill to CNC (LONG)
Posted by
John Craddock
on 2003-05-10 03:31:27 UTC
Mariss
Are you sure you don't divide by the efficiency? Formula below gives smaller motor for less efficient lead screw.
John C
-----Original Message-----
From: Mariss Freimanis [mailto:mariss92705@...]
Sent: Saturday, 10 May 2003 10:28 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Conversion Of Mill to CNC (LONG)
(2) in-oz = (2.55 * Lbs * eff) / TPI where TPI is turns per inch and
eff is the screw efficiency. Use .3 for a really crummy ACME screw
and .95 for a really fine ball screw.
Are you sure you don't divide by the efficiency? Formula below gives smaller motor for less efficient lead screw.
John C
-----Original Message-----
From: Mariss Freimanis [mailto:mariss92705@...]
Sent: Saturday, 10 May 2003 10:28 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Conversion Of Mill to CNC (LONG)
(2) in-oz = (2.55 * Lbs * eff) / TPI where TPI is turns per inch and
eff is the screw efficiency. Use .3 for a really crummy ACME screw
and .95 for a really fine ball screw.
Discussion Thread
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