Quote Originally Posted by davo453 View Post
Guess I am mainly considering r&p because Peter that does the cncnutz YouTube blog has had a good experience with it.
Depends what you want from machine. R&P is much less accurate and far less efficient. Which means the system as whole is worked harder. Motors will be pushed harder which in turn works the drives harder etc etc.
Then you have the complexity of R&P compared to Ballscrews. To get decent resolution you'll 99% have to use ratio which introduces more cost/complexity. Then you have to think about backlash and adjustment vs wear,? Too much adjust and get excess wear. Too little and you get backlash. Then throw into the mix keeping rack clean and free from debris and the verly slight extra cost, if any, of ballscrews is price you should gladly pay.

Like Boyan says go to China and you'll get better price. Go to Bst automation on Ali express and tell Fred Le Dean sent you and might be surprised at the price you get back.!




Just because one person uses it and finds it's ok doesn't mean it's good.