Thread: Accurate Strong Gantry
Threaded View
-
27-11-2014 #7
Hi, calculations are one thing, real life another. I have belt driven machine on all axis. So i believe i know something about belts. The only thing positive in this design is that the belt is perpendicular to the ball screw, means its not driving directly the machine but transferring the movement.
What size type belt and pulleys?
How heavy is the gantry with all motors, rails and so? Not sure if you could drive it with one 300w servo at all.
I know Dean /JazzCNC/ is driving his machine like this, but you have to make sure about the proper belt size, corresponding motor and make sure that the accumulated inertia of the pulleys and ball screws will not limit the machine speed.
And looking at 0.05mm means tthat you must strive at 0.01mm. That means cheap chinese pulleys will NOT work. Have that in mind. And if you need to lower the inertia you must buy expensive aluminum pulleys or custom made that small size. I have 20 crap pulleys laying around cause i thought they were a deal from aliexpress.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
BUILD LOG: 8x4 router build. Steel base & Aluminium gantry gantry
By D-man in forum DIY Router Build LogsReplies: 57Last Post: 13-12-2019, 10:43 AM -
BUILD LOG: A sufficiently strong machine
By Jonathan in forum DIY Router Build LogsReplies: 42Last Post: 29-03-2014, 10:40 PM -
Accurate Tape Measure?
By Tenson in forum Tool & Tooling TechnologyReplies: 19Last Post: 26-05-2012, 04:41 PM -
NEW MEMBER: Strong 1212DS - any good?
By MrWiz73 in forum New Member IntroductionsReplies: 0Last Post: 29-03-2011, 11:13 AM -
Bit OT - accurate timing
By m_c in forum General ElectronicsReplies: 3Last Post: 18-05-2009, 01:16 PM
Bookmarks