Z motor noise from binding... how do you align? December 01, 2017 07:03AM |
Registered: 7 years ago Posts: 128 |
Re: Z motor noise from binding... how do you align? December 01, 2017 11:08AM |
Registered: 11 years ago Posts: 5,780 |
Re: Z motor noise from binding... how do you align? December 02, 2017 02:38AM |
Registered: 9 years ago Posts: 5,232 |
Re: Z motor noise from binding... how do you align? December 02, 2017 07:57AM |
Registered: 11 years ago Posts: 5,780 |
Re: Z motor noise from binding... how do you align? December 02, 2017 09:00AM |
Registered: 6 years ago Posts: 1,007 |
Re: Z motor noise from binding... how do you align? December 03, 2017 07:13AM |
Registered: 7 years ago Posts: 128 |
Re: Z motor noise from binding... how do you align? December 03, 2017 11:31AM |
Registered: 11 years ago Posts: 5,780 |
Re: Z motor noise from binding... how do you align? December 05, 2017 07:18AM |
Registered: 7 years ago Posts: 128 |
Quote
Digital Dentist
Linear guides are easy to make parallel if you start with them in the same plane. You have them mounted on two different planes that you are hoping are parallel. If the linear guides were moved 90 degrees to the inside faces of the frame members, then connected together with single long bar I think you'd have a better chance of getting them parallel. You can assemble the back frame rectangle and know it's flat by assembling it with the pieces laying on a flat surface. When you bolt the guides to that you know they are in the same plane. Then the adjustment to parallel within that plane is easy by moving the carriage from one end of the axis to the other as you tighten down the linear guide mounting screws.
I think putting the motor/screws inside the rear frame rectangle will keep the screws close to the bearing blocks and reduce the whole bed assembly's tendency to pivot on the screws.
Quote
Digital Dentist
Assuming you did all that, you're now looking at a cantilevered bed with only the single bearing block on each linear guide subjected to all the torque that the cantilever produces, which may cause excessive wear or even binding. The free edge of a cantilevered bed will tend to bounce because of shaking in the machine, especially as the Y axis moves. There are two ways to fix that. Add a third screw at the free end of the bed, or move the two guide rails and screws to the center of the bed to balance the load.
Re: Z motor noise from binding... how do you align? December 05, 2017 07:45AM |
Registered: 11 years ago Posts: 5,780 |