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Hi,
if I push the "Floor-Button" on the Z-Axis Calibration Tab, nothing happens but if I push the "Top-Button" the Z-Axis is moving down!?!
I working with Build 1107.
What´s wrong or is that a bug?
Many Thanks,
Cobra
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Hi,
Do you have any other problem with other z-calibration buttons?
Are you using RAMPS board?
Bottom-Top or Top-Bottom?
nanoDLP keeps top, bottom and current positions but if they have been set correctly. In the most cases TOP is get ignored by RAMPS or printer does not have any endstop. So those numbers could be wrong and it is important.
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Up and Down Buttons (200mm to 1Pulse) are working in right direction.
I´m using RAMPS - Zero at Bottom.
If I press "Home Z Axis" the axis will move to the bottom and stops at the end-stop - Position is set to 0 in nanodlp - so I think its correct.
If a slice is running, it moves to top, too - thats correct.
Only the "Floor Button" does nothing and if I press "Top Botton" it moves to bottom...
if I press "Measure Z length" and "Calibrate Zero Position" nothing moves... but should it ?!
Many thanks!
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Couple of buttons such as "Home Z Axis" are custom gcode buttons. Muve3d version have few. So we can assume they should works correctly. You can setup new one or checkout their code from custom button tab in setup page.
Both "Measure Z length" and "Calibrate Zero Position" buttons only work in direct control mode. I will remove them for RAMPS users as it create great deal of confusion. At-least until now, no RAMPS firmware support measuring so no way currently to support it.
About floor/top buttons, at-least for muve3d top should not work as we do not have exact length of axis. But floor button should do what currently top button do. (running G28 code). I will fix this one.
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That sounds great!
Thank you for quick reply,
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Hi,
I have the same problem and I'm using RAMPS with Raspberry Pi2. I press on the top side buttons on the Z-Axis Calibration Tab, it works as normal but if I press the buttons at the floor side, it moves 10 pulses likely. When I reverse the 4 pins plug direction of the A4988 driver. It moves to floor side only but cannot move to top side. What's wrong? Can help to advise to debug?
Many Thanks!
Barry
Last edited by bc323 (2016-12-15 16:59:44)
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If you want it to work correctly with RAMPS, you need to update z-axis length correctly.
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Hi, Shahin
Firstly, thanks for your quick reply. All my testing, the RAMPS can move one single direction either floor or top only ( reverse the connector of stepper) and I have moved holder at the middle length of the screw rod. Can help to explain how to update z-axis length?
Many Thanks
Barry
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You are probably using absolute positioning without putting nanodlp into absolute mode.
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Hi, Shahin
Thanks for your reply. I am using build 1280 and I test below GCode in the terminal either absolute mode or relative mode. It seems I need to use G28 first and then the G1 work normally. After, I send a negative value to Ramps, the stepper cannot move anymore. What's wrong? Can help to advise to debug?
G28 ; move
ok
G1 Z1.0 ; move
ok
G1 Z-1.0 ; Not move
ok
G1 Z1.0 ; Not move
ok
G28 ; move
ok
G1 Z1.0 ; move
ok
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Hi, Shahin
Thanks for your time, the problem is fixed and I had a wrong wiring for my optical endstop.
Many Thanks
Barry
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