Thread: Z-Axis design and advice
Hybrid View
-
14-03-2012 #1
Not saying it's no good but it's not the best it could be and with a few changes could be made stronger.
Supported rail is far better.!. . BUT. . If you have them then just change the design so the rails are on the front plate and bearings on the rear.
You won't gain the extra support to front plate supported rails give but to be honest this is minor and secondery to the gain from less cutter flex thru the proposional extension not acting like constant length spring board which is what your design allows. The 20mm plate will be strong anyway so IMO with these changes you'll be ok.
If you do go with supported then 16 or 20mm will be fine.
-
14-03-2012 #2
Ermmm I've just down loaded your drawing and can see that your using 12mm round rail.!! . . . This would concern me and would seriously consider selling and upgrading to supported rail.
It's a lot of work and expensive aluminium to potentially waste and I'm confident to say it will significantly reduce your depths and feed rate in aluminium..:sad:
So times it's less painfull and expensive to cut your loss's and start a fresh.! . . . If you have a fully working Z axis now why not sell it complete to someone who doesn't need the strength or abilty to cut harder materials. Then treat your self to supported rails and ballscrew from china.? . . . Think you'll be surprised how cheap you can build a great Z axis for with supported rails and ballscrews.!!
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Ross77's Z Axis Design
By Jonathan in forum Open Source Designs & PlansReplies: 1Last Post: 20-05-2013, 06:09 PM -
Gantry design advice please
By D-man in forum Gantry/Router Machines & BuildingReplies: 10Last Post: 07-11-2012, 04:17 PM -
Advice needed for Z Design
By Hobgoblin in forum Linear & Rotary MotionReplies: 8Last Post: 10-09-2012, 09:18 PM -
CNC Design and advice
By Mad Professor in forum Gantry/Router Machines & BuildingReplies: 23Last Post: 20-09-2010, 03:25 PM -
Y axis design
By GeorgeD in forum Gantry/Router Machines & BuildingReplies: 9Last Post: 15-07-2010, 03:04 AM
Bookmarks