Is a dual support Z on the diagonal corners of bed a bad idea? November 18, 2015 11:42AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 18, 2015 03:24PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 18, 2015 08:43PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 02:48AM |
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Quote
the_digital_dentist
If there's any error in one of the Z screw positions it will cause both pitch and roll errors in the bed. If it were arranged so both screws were along either the X or Y axis, error from the screw position would cause only pitch or roll error, but not both. It's a little easier to deal with a single error.
Any work done on this so I might benefit from your experience?Quote
DRobs86
I have been considering such a design myself.
Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 06:54AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 07:02AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 07:43AM |
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Quote
realthor
I've seen a german printer with 3 leadscrews actuated by a single motor/belt, but that is overkill for home use.
Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 10:31AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 12:14PM |
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Quote
the_digital_dentist
Driving multiple screws with a belt is the only way to ensure that they remain in sync. If they get out of sync for any reason the bed tilts.
Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 02:39PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 03:08PM |
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Quote
dc42
You could drive the Z leadscrews independently if you have a mechanism to do auto bed levelling when you power the printer on - and I really do mean auto bed levelling, not bed compensation. This could be done quite easily using a Z probe. I just had a visit from an Igus salesman, and one of the things that Igus makes is a ball and socket joint threaded for a leadscrew - which would be ideal for joining the bed to the leadscrews.
The main disadvantage with this idea is that it needs 3 independently driven Z motors, so you need electronics with 6 drivers to support it in a single-extruder printer. So a Duet 0.8.5 or Smoothieboard 5XC couldn't do it, but a RADDS could.
Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 19, 2015 03:26PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 20, 2015 01:31AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 20, 2015 06:06AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 20, 2015 06:35AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 20, 2015 05:28PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 26, 2015 06:48PM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 27, 2015 07:06AM |
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Re: Is a dual support Z on the diagonal corners of bed a bad idea? November 27, 2015 08:57AM |
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