Re: Bed Auto Leveling.. check this out November 28, 2013 10:11AM |
Registered: 11 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out November 30, 2013 08:40PM |
Registered: 11 years ago Posts: 6 |
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Chikei
Hi, i have a Makerfarm Prusa i3 8" and im trying to add auto bed leveling to it.
I got G28/G30 work correctly, but when I run G29, the z probe be lowered immediately then z-axis lowered and then z probe retracted.
XY axis are not moving at all but the system thinks it's moved.
Can anyone help me ?
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zennmaster
I uncommented "#define DISABLE_MAX_ENDSTOPS" in configuration.h and now everything is working great!
Re: Bed Auto Leveling.. check this out December 02, 2013 12:38AM |
Registered: 10 years ago Posts: 2 |
Re: Bed Auto Leveling.. check this out December 02, 2013 08:29PM |
Registered: 11 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out December 02, 2013 08:49PM |
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Re: Bed Auto Leveling.. check this out December 03, 2013 09:53PM |
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Re: Bed Auto Leveling.. check this out December 04, 2013 06:09PM |
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Re: Bed Auto Leveling.. check this out December 04, 2013 06:25PM |
Registered: 12 years ago Posts: 791 |
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uncle_bob
The servo it's self only needs one pin to drive it. The other two pins are simply a ground and a +5V supply pin. Any board that brings out the same spare pin as the Ramps uses can easily be set up to do this.
Re: Bed Auto Leveling.. check this out December 05, 2013 01:14PM |
Registered: 11 years ago Posts: 1,433 |
Re: Bed Auto Leveling.. check this out December 06, 2013 02:44AM |
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Re: Bed Auto Leveling.. check this out December 06, 2013 03:25AM |
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Re: Bed Auto Leveling.. check this out December 06, 2013 12:21PM |
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Re: Bed Auto Leveling.. check this out December 09, 2013 06:40PM |
Registered: 12 years ago Posts: 791 |
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uncle_bob
You would need a schematic of the board in order to trace out the "spare" pins. There is no guarantee the pins you need come out. If at least one of the servo drive pins on the Ramps shows up, it should be a pins.h or configuration.h sort of thing to get Marlin to spit data out there.
Re: Bed Auto Leveling.. check this out December 10, 2013 12:44PM |
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Re: Bed Auto Leveling.. check this out December 16, 2013 06:27AM |
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Re: Bed Auto Leveling.. check this out December 16, 2013 09:26AM |
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Re: Bed Auto Leveling.. check this out December 18, 2013 06:38PM |
Registered: 11 years ago Posts: 45 |
Re: Bed Auto Leveling.. check this out December 18, 2013 07:12PM |
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Re: Bed Auto Leveling.. check this out December 20, 2013 08:16AM |
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Re: Bed Auto Leveling.. check this out December 20, 2013 08:30AM |
Registered: 11 years ago Posts: 45 |
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stephenrc
In the line:
#define SERVO_ENDSTOP_ANGLES {0,0, 0,0, 174,110} // X,Y,Z Axis Extend and Retract angles
You have the extend & retract values reversed.
The above numbers are what I use, yours will be different.
Re: Bed Auto Leveling.. check this out December 20, 2013 08:38AM |
Registered: 10 years ago Posts: 10 |
Re: Bed Auto Leveling.. check this out December 20, 2013 09:02AM |
Registered: 11 years ago Posts: 45 |
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wdl1908
If I remeber correctly G28 is just homing you need to issue a G29 to do the probing.
Re: Bed Auto Leveling.. check this out December 20, 2013 09:10AM |
Registered: 12 years ago Posts: 791 |
Re: Bed Auto Leveling.. check this out December 20, 2013 09:14AM |
Registered: 10 years ago Posts: 10 |
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p40whk
Hmm, it's amazing how some of the simplest things can fix seemingly tough problems. Thanks, I'll check that out when I get home tonight.
So, if you wanted to append your G-Code to make things automatic would the sequence be something like this?
G28 : Move to Origin (Homing position)
G90 : Set position to absolute
M109 S115 : Warm the bed
M6 : Wait for bed to reach temp
G29 : Perform Bed Probing
M104 S235 : Set Extruder Temp
Or am I missing any commands?
Re: Bed Auto Leveling.. check this out December 20, 2013 09:19AM |
Registered: 11 years ago Posts: 45 |
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regpye
After you have it working, you need to do some small adjustments to the Z offset to get it perfect.
Do the normal measurements using the nozzle down 0.01 in Pronterface followed by a M119 to get the endstop status and once you have the exact measurement that shows in the lower right hand window, use this to set your offset.
After testing you may need to adjust this amount very slightly one way or the other. It is really worth spending a bit of time to do this as it will make a huge difference to your final prints.
Once the first layer is down the rest prints nicely anyway, but the first layer is the all important layer in my opinion.
Re: Bed Auto Leveling.. check this out December 20, 2013 09:29AM |
Registered: 11 years ago Posts: 45 |
Re: Bed Auto Leveling.. check this out December 20, 2013 09:36AM |
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Re: Bed Auto Leveling.. check this out December 20, 2013 10:54AM |
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Re: Bed Auto Leveling.. check this out December 23, 2013 06:21PM |
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Re: Bed Auto Leveling.. check this out December 24, 2013 05:06PM |
Registered: 12 years ago Posts: 329 |