Threaded View
-
20-05-2013 #1
Evening all. Heres my take on an easy to build and strong Z axis/carriage design when using supported rail.
Y axis beam is only a starting point and the ball screw is probably not in the optimum place but the main design points are:
- Distance from Y axis rail to cutter centre minimised (130mm with 80mm spindle) to reduce torsion on y axis bearings from cutting force and weight of Z carriage
- Simple design with minimum parts and therefore deflection.
- Z axis motor mounted on Y carriage
- Lower bearings wider spacing to increase rigidity and reduce racking on ballscrew (bearings travel through gantry sides so y axis can be kept short.
This is only a Concept design for bearing and rail orientation - final dims and size to suit cutting application
Z axis
16mm rails
100mm travel
80mm spindle (eg water cooled from ebay)
Y axis
20mm rails
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
WANTED: Supported rail. The bigger the better
By r0bsk1 in forum Items WantedReplies: 0Last Post: 08-07-2013, 07:50 PM -
A concept design for a cnc machine
By madprof1 in forum Gantry/Router Machines & BuildingReplies: 3Last Post: 07-12-2012, 10:40 PM -
round, supported or profiled rail?
By mocha in forum Rails, Guideways & BearingsReplies: 0Last Post: 26-07-2012, 03:44 PM -
Some thoughts on using supported rail
By Ross77 in forum Rails, Guideways & BearingsReplies: 0Last Post: 29-01-2010, 07:13 PM -
Supported rail or other?
By lateAtNight in forum Rails, Guideways & BearingsReplies: 16Last Post: 14-11-2008, 02:28 PM
Bookmarks