Leadscrew anti backlash , Z axis March 06, 2016 11:26PM |
Registered: 9 years ago Posts: 199 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:25AM |
Registered: 8 years ago Posts: 18 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 09:42AM |
Registered: 11 years ago Posts: 114 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 11:57AM |
Registered: 9 years ago Posts: 199 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 12:33PM |
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Re: Leadscrew anti backlash , Z axis March 07, 2016 01:35PM |
Registered: 9 years ago Posts: 1,873 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:08PM |
Registered: 9 years ago Posts: 199 |
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the_digital_dentist
The X axis may be movable by hand in the +Z direction, but gravity (specifically the weight of the X axis) should keeps the nuts loaded so antibacklash nuts aren't required unless the mechanism binds. If the mechanism binds I think it would be better to fix the binding problem, because it implies that things are misaligned, than to solve it with antibacklash nuts.
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:09PM |
Registered: 9 years ago Posts: 199 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:13PM |
Registered: 9 years ago Posts: 1,873 |
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But there is backlash in x and especially in y within the nut, wich makes it a whole different story.
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:21PM |
Registered: 9 years ago Posts: 199 |
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JamesK
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But there is backlash in x and especially in y within the nut, wich makes it a whole different story.
Um, exactly the opposite actually. The play in X & Y is intentional and reduces the tendency of the lead screws to force the x-axis in those directions. The lateral position of the gantry should be determined solely by the linear shafts - that's what they are there for. If you take out the play in X & Y from the leadscrews you will likely make Z wobble worse.
Re: Leadscrew anti backlash , Z axis March 07, 2016 02:57PM |
Registered: 11 years ago Posts: 114 |
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I guess the only way to tell is to do a test print with and without ( i can do that with my prusa i3 now already), even though i am confident that the upgrade does just as much to the precision of your parts as to the looks of it.
Re: Leadscrew anti backlash , Z axis March 07, 2016 03:30PM |
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Re: Leadscrew anti backlash , Z axis March 07, 2016 07:07PM |
Registered: 9 years ago Posts: 199 |
Re: Leadscrew anti backlash , Z axis March 07, 2016 10:03PM |
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Re: Leadscrew anti backlash , Z axis March 08, 2016 09:15AM |
Registered: 9 years ago Posts: 199 |
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JamesK
Sorry, didn't mean to sound so negative. All that matters in the end is how it works - if you get the results you want it's all good!