Thread: Driving floating end (ballscrew)
Threaded View
-
08-09-2010 #4
Last Activity: 17-03-2017
coefficient of linear expansion of steel is about 13 - 17 x 10^-6 m per m per degC. i.e. a 600mm length will expand max 0.01mm per degC, so allowing for normal working environment say +20degC +/- 10degC you can expect a variation of 0.2mm.
Force = delta_L * E * A/L where E=Youngs modulus (207x 10^9 N/m^2), A = area in m (2e-4 for a 16mm screw), L = length, delta_L = change in length
=0.2 * 207e9 * 2e-4 / 600 = 13800N... not a force your stepper would be happy with!
-
The Following User Says Thank You to irving2008 For This Useful Post:
Reply With QuoteThread Information
Users Browsing this Thread
There are currently 4 users browsing this thread. (0 members and 4 guests)
Similar Threads
-
Plasma floating head...
By Davek0974 in forum Plasma Table MachinesReplies: 27Last Post: 01-01-2015, 01:52 PM -
Driving me insane
By Bush Flyer in forum Motor Drivers & ControllersReplies: 17Last Post: 14-04-2014, 03:55 PM -
ballnut housing and floating end ballscrew assembly
By dsc in forum Lead Screws, Nuts & SupportsReplies: 12Last Post: 12-07-2013, 08:22 AM -
non-locating / floating bearing - shaft location
By dsc in forum Linear & Rotary MotionReplies: 5Last Post: 28-06-2013, 10:07 PM -
Driving 2 steppers from one driver?
By Dan Brown in forum Stepper & Servo MotorsReplies: 2Last Post: 20-12-2009, 07:26 PM
Bookmarks