Magnetic Arms Good or Bad March 14, 2017 01:36AM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 14, 2017 03:03AM |
Registered: 10 years ago Posts: 14,672 |
Re: Magnetic Arms Good or Bad March 14, 2017 09:59AM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 14, 2017 04:57PM |
Registered: 10 years ago Posts: 14,672 |
Re: Magnetic Arms Good or Bad March 15, 2017 12:29AM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 15, 2017 03:25AM |
Registered: 10 years ago Posts: 14,672 |
Re: Magnetic Arms Good or Bad March 15, 2017 03:49AM |
Registered: 8 years ago Posts: 916 |
Quote
dc42
Initially I used the old arms, effector and carriages after upgrading the frame and changing to linear rails. The auto calibration deviation (using 9 peripheral points, 3 points at half the build radius and the centre) halved from about 0.1um to 0.05um. But I hadn't yet adjusted the Z probe trigger height corrections to account for the effector tilt being lower than before. Had I done that then the deviation might have been lower still.
I'll report the new auto calibration deviation when I have a working Z probe again.
I upgraded from 2020 to 2040 extrusion because my delta is 1m high and I think the extra rigidity will probably be worthwhile, especially for tall prints. When I first built the printer, the metal corners were only available for 2020.
I have a draft blog page about this printer build along with a detailed and costed BoM.
Re: Magnetic Arms Good or Bad March 15, 2017 04:55AM |
Registered: 8 years ago Posts: 3,525 |
Re: Magnetic Arms Good or Bad March 15, 2017 10:04AM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 15, 2017 10:15AM |
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Re: Magnetic Arms Good or Bad March 15, 2017 03:28PM |
Registered: 9 years ago Posts: 978 |
Quote
DjDemonD
The lowest friction possible between the cups surrounding the magnets and the balls also helps. This can be achieved with grease, or use of delrin/acetal cups.
Re: Magnetic Arms Good or Bad March 15, 2017 04:23PM |
Registered: 8 years ago Posts: 3,525 |
Re: Magnetic Arms Good or Bad March 15, 2017 06:04PM |
Registered: 10 years ago Posts: 14,672 |
Re: Magnetic Arms Good or Bad March 15, 2017 10:17PM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 16, 2017 12:19AM |
Registered: 10 years ago Posts: 14,672 |
Re: Magnetic Arms Good or Bad March 16, 2017 09:56AM |
Registered: 9 years ago Posts: 83 |
Re: Magnetic Arms Good or Bad March 16, 2017 10:17AM |
Registered: 8 years ago Posts: 3,525 |